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Broaching (metalworking)

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first exist in the workpiece so the broach can enter. Also, there are limits on the size of internal cuts. Common internal holes can range from 0.125 to 6 in (3.2 to 152.4 mm) in diameter but it is possible to achieve a range of 0.05 to 13 in (1.3 to 330.2 mm). Surface broaches' range is usually 0.075 to 10 in (1.9 to 254.0 mm), although the feasible range is 0.02 to 20 in (0.51 to 508.00 mm).
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so that its axis of rotation is inclined slightly to the axis of rotation of the work. A typical value for this misalignment is 1°. This angle is what produces a rotating edge for the broach to cut the workpiece. Either the workpiece or the tool holder is rotated. If the tool holder is rotated, the misalignment causes the broach to appear as though it is "wobbling", which is the origin of the term
585: 792:. They are notches in the teeth designed to break the chip and decrease the overall amount of material being removed by any given tooth (see the drawing above). For broaching to be effective, the workpiece should have 0.020 to 0.025 in (0.51 to 0.64 mm) more material than the final dimension of the cut. 236:
The only limitations on broaching are that there are no obstructions over the length of the surface to be machined, the geometry to be cut does not have curves in multiple planes, and that the workpiece is strong enough to withstand the forces involved. Specifically for internal broaching a hole must
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or feed per tooth, determines the amount of material removed and the size of the chip. The broach can be moved relative to the workpiece or vice versa. Because all of the features are built into the broach, no complex motion or skilled labor is required to use it. A broach is effectively a collection
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with a guided ram; typical capacities are 5 to 50 tons. The two ram pull-down machine is the most common type of broaching machine. This style machine has the rams under the table. Pull-up machines have the ram above the table; they usually have more than one ram. Most surface broaching is done on a
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broaches. In this design the RPT is designated to two or three rows of teeth. For the broach to work the first tooth of that cluster has a wide notch, or undercut, and then the next tooth has a smaller notch (in a three tooth design) and the final tooth has no notch. This allows for a deep cut while
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inward so it becomes thinner; for external broaching the sides are drafted outward, to make the pocket bigger. This draft keeps the broach from jamming; the draft must be larger than the angle of misalignment. If the work piece rotates, the broach is pressed against it, is driven by it, and rotates
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Rotary broaching requires two tooling components: a tool holder and a broach. The leading (cutting) edge of the broach has a contour matching the desired final shape. The broach is mounted in a special tool holder that allows it to freely rotate. The tool holder is special because it holds the tool
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Horizontal broaching machines are designed for pull broaching, surface broaching, continuous broaching, and rotary broaching. Pull style machines are basically vertical machines laid on the side with a longer stroke. Surface style machines hold the broach stationary while the workpieces are clamped
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Broaching was originally developed for machining internal keyways. However, it was soon discovered that broaching is very useful for machining other surfaces and shapes for high volume workpieces. Because each broach is specialized to cut just one shape, either the broach must be specially designed
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of the broach. The elevator then releases the top of the follower and the puller pulls the broach through the workpiece completely. The workpiece is then removed from the machine and the broach is raised back up to reengage with the elevator. The broach usually only moves linearly, but sometimes it
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are cut the inverse of an internal broach; they cut the outside diameter of a cylindrical workpiece. They are named after the pot looking fixture in which the broaches are mounted; the fixture is often referred to as a "pot". The pot is designed to hold multiple broaching tools concentrically over
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Broaches are shaped similar to a saw, except the height of the teeth increases over the length of the tool. Moreover, the broach contains three distinct sections: one for roughing, another for semi-finishing, and the final one for finishing. Broaching is an unusual machining process because it has
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There is some spiraling of the tool as it cuts, so the form at the bottom of the workpiece may be rotated with respect to the form at the top of the hole or profile. Spiraling may be undesirable because it binds the body of the tool and prevents it from cutting sharply. One solution to this is to
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The pitch defines the tooth construction, strength, and number of teeth in contact with the workpiece. The pitch is usually calculated from workpiece length, so that the broach can be designed to have at least two teeth in contact with the workpiece at any time; the pitch remains constant for all
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the RPT ranges from 0.006 to 0.001 in (0.152 to 0.025 mm). For surface broaching the RPT is usually between 0.003 to 0.006 in (0.076 to 0.152 mm) and for diameter broaching is usually between 0.0012 to 0.0025 in (0.030 to 0.064 mm). The exact value depends on many
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is used to cut thin-walled workpieces. Thin-walled workpieces have a tendency to expand during cutting and then shrink afterward. This broach overcomes that problem by first broaching with the standard roughing teeth, followed by a "breathing" section, which serves as a pilot as the workpiece
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Broaching is often impossible without the specific broaching or keyway machines unless you have a system that can be used in conjunction with a modern machining centre or driven tooling lathe; these extra bits of equipment open up the possibility of producing keyways, splines and
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use two slab broaches to cut parallel surfaces on opposite sides of a workpiece in one pass. This type of broaching holds closer tolerances than if the two cuts were done independently. It is named after the fact that the broaches "straddle" the workpiece on multiple sides.
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If it advances much faster, then the tool becomes choked; conversely, if it advances much slower, then an interrupted or zig-zag cut occurs. In practice the rate of cut is slightly less than the ideal rate so that the load is released on the non-cutting edge of the tool.
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broaches are commonly used for large internal broaching applications. They are similar to shell broaches in that they are a multi-piece construction. This design is used because it is cheaper to build and resharpen and is more flexible than a solid design.
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for the geometry of the workpiece or the workpiece must be designed around a standard broach geometry. A customized broach is usually only viable with high volume workpieces, because the broach can cost US$ 15,000 to US$ 30,000 to produce.
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The process depends on the type of broaching being performed. Surface broaching is very simple as either the workpiece is moved against a stationary surface broach, or the workpiece is held stationary while the broach is moved against it.
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factors. If the cut is too big it will impart too much stress into the teeth and the workpiece; if the cut is too small the teeth rub instead of cutting. One way to increase the RPT while keeping the stresses down is with
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Horizontal machines used to be much more common than vertical machines; however, today they represent just 10% of all broaching machines purchased. Vertical machines are more popular because they take up less space.
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broach, which completely machines the center of the workpiece and then the rest of the broach machines outward from there. All of these designs require a broach that is longer than if a standard design were used.
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The most important characteristic of a broach is the rise per tooth (RPT), which is how much material is removed by each tooth. The RPT varies for each section of the broach, which are the roughing section
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design. Here four teeth in a row have the same RPT, but each progressive tooth takes only a portion of the cut due to notches in the teeth (see the image gallery below). The other option is known as a
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Broaching machines are relatively simple as they only have to move the broach in a linear motion at a predetermined speed and provide a means for handling the broach automatically. Most machines are
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is highly advantageous. In addition, push or pull broaches cannot be used in a blind hole, while a rotary broach can, as long as there is sufficient space for chips at the bottom of the hole.
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Fortified petroleum cutting fluids are the most common. However, heavy-duty water-soluble cutting fluids are being used because of their superior cooling, cleanliness, and non-flammability.
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reverse the rotation in mid cut, causing the tool to spiral in the opposite direction. If reversing the machine is not practical, then interrupting the cut is another possible solution.
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are provided instead of finishing teeth. They are not really teeth, as they are just rounded discs that are 0.001 to 0.003 in (0.025 to 0.076 mm) oversized. This results in
233:(SFPM). This results in a complete cycle time of 5 to 30 seconds. Most of the time is consumed by the return stroke, broach handling, and workpiece loading and unloading. 1066:. One of the biggest advantages to this type of broaching is that it does not require a broaching machine, but instead is used on lathes, milling machines, screw machines or 361:
construction. This involves producing the broach in pieces and assembling it. If any portion wears out only that section has to be replaced, instead of the entire broach.
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Vertical broaching machines can be designed for push broaching, pull-down broaching, pull-up broaching, or surface broaching. Push broaching machines are similar to an
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into fixtures that are mounted on a conveyor system. Continuous style machines are similar to the surface style machines except adapted for internal broaching.
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There are two different options for achieving the same goal when broaching a flat surface. The first is similar to the rotor-cut design, which is known as a
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built into the tool. The profile of the machined surface is always the inverse of the profile of the broach. The rise per tooth (RPT), also known as the
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Broaching is used when precision machining is required, especially for odd shapes. Commonly machined surfaces include circular and non-circular holes,
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when more than one slot needs to be machined, because multiple broaches can be run through the part at the same time on the same broaching machine.
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In general, a rotary broach will not cut as accurately as a push or pull broach. However, the ability to use this type of cutting tool on common
1714: 1223: 2122: 148:, broaching was used to rifle gun barrels. In the 1920s and 30s the tolerances were tightened and the cost reduced thanks to advances in 1687: 107:. Even though broaches can be expensive, broaching is usually favored over other processes when used for high-quantity production runs. 2145: 1413: 72:. In rotary broaching, the broach is rotated and pressed into the workpiece to cut an axisymmetric shape. A rotary broach is used in a 1161: 803:) angle is a parameter of the material being cut. For steel, it is between 15 and 20° and for cast iron it is between 6 and 8°. The 243:
are usually ±0.002 in (±0.05 mm), but in precise applications a tolerance of ±0.0005 in (±0.01 mm) can be held.
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Drozda, Tom; Wick, Charles; Benedict, John T.; Veilleux, Raymond F.; Society of Manufacturing Engineers; Bakerjian, Ramon (1983),
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synchronously with it. If the tool holder rotates, the broach is pressed against the workpiece, but is driven by the tool holder.
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broaches are used; these broaches are similar to a solid broach, except there is a hole through the center where it mounts on an
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For defining the geometry of a broach an internal type is shown below. Note that the geometries of other broaches are similar.
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A somewhat different design of cutting tool that can achieve the irregular hole or outer profile of a broach is called a
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The concept of broaching can be traced back to the early 1850s, with the first applications used for cutting keyways in
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The slot in the tip of the broach where the broaching machine latches on to the broach to pull it through the workpiece
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its entire length. The broach is held stationary while the workpiece is pushed or pulled through it. This has replaced
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broaches are the most common type; they are made from one solid piece of material. For broaches that wear out quickly
402:(G & H) are for cutting slots of various dimensions at high production rates. Slot broaching is much quicker than 1738: 1707: 1661: 1619: 310:(HRC); a hardness greater than HRC 35 will dull the broach quickly. Broaching is more difficult on harder materials, 1356: 528: 100: 77: 247:
are usually between 16 and 63 microinches (μin), but can range from 8 to 125 μin. There may be small
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shrinks. The teeth after the "breathing" section then include roughing, semi-finishing, and finishing teeth.
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Internal broaching is more involved. The process begins by clamping the workpiece into a special holding
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arrayed in sequence, cutting one after the other; its cut is analogous to multiple passes of a
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Ideally the tool advances at the same rate that it cuts. The ideal rate of cut is defined as:
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the hole to the proper size. This is primarily used on non-ferrous and cast iron workpieces.
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When radially broaching workpieces that require a deep cut per tooth, such as forgings or
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is rarely used as a tooth material because the cutting edge will crack on the first pass.
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is the simplest surface broach. It is a general purpose tool for cutting flat surfaces.
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are designed to cut concave, convex, cam, contoured, and irregular shaped surfaces.
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to support the broach and properly locate the part with relation to the broach.
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inch (8 mm) keyway broach; note how the teeth are larger on the left end.
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An example of a broached workpiece. Here the broaching profile is a spline.
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of the material. For steels the ideal hardness range is between 16 and 24
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Rate of cut = (diameter of tool ) × sin(Angle of misalignment )
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If the broach is large enough the costs can be reduced by using a
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is a special type of spline cutting broach which cuts both the
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Degarmo, E. Paul; Black, J T.; Kohser, Ronald A. (2003),
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The hydraulic cylinder of a horizontal broaching machine.
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teeth of the broach. One way to calculate the pitch is:
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is also rotated to create a spiral spline or gun-barrel
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broach (C & D). It uses a special fixture called a
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keeping stresses, forces, and power requirements low.
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Todd, Robert H.; Allen, Dell K.; Alting, Leo (1994),
900:{\displaystyle P\cong 0.35{\sqrt {L_{\mathrm {w} }}}} 871: 826:
design can be used; these broaches are also known as
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and the spline form to ensure precise concentricity.
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A broached keyway in the end of an adjustable wrench.
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Tool and Manufacturing Engineers Handbook: Machining
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VW Broaching Services: Straddle & Pot Broaching
1081:For internal broaching the sides of the broach are 1609: 1495:"Linear Broaching Made Simple With Benz LinA/LinS" 1481: 1466: 1454: 1397: 1328: 1268: 1249: 1210: 1187: 1148: 1136: 899: 254:Broaching works best on softer materials, such as 2880: 1649: 1450: 1448: 1378: 1358:Polygon Solutions: What materials can I broach? 1343: 2401: 1001:Schematic of a rotary broach starting a cut. 346:Construction: solid, built-up, hollow or shell 2387: 1746: 1708: 1545: 1477: 1475: 1418:, VW Broaching Services, Inc., archived from 1393: 1391: 1389: 1387: 1305: 1225:AstroBroach Machines: Principles of Operation 1445: 1264: 1262: 1260: 1258: 1206: 1204: 1202: 1200: 1198: 1196: 1546:Bagwell, Peter; Tryles, Jeff (March 2006), 1518:. Polygon Solutions Inc. 15 December 2010. 333:Broaches can be categorized by many means: 52:process that uses a toothed tool, called a 2394: 2380: 1753: 1739: 1715: 1701: 1585:, Somma Tool Company, Inc., archived from 1472: 1384: 229:Broaching speeds vary from 20 to 120  1339: 1337: 1301: 1299: 1297: 1255: 1243: 1193: 349:Function: roughing, sizing, or burnishing 1612:Materials and Processes in Manufacturing 1295: 1293: 1291: 1289: 1287: 1285: 1283: 1281: 1279: 1277: 996: 952: 943:Side view of a double-cut surface broach 748: 711:= Land (behind the cutting edge) (0.25P) 471:A common type of internal broach is the 441: 427:and cutting external splines and slots. 216: 33: 15: 1683:Demonstration using hand operated press 1653:Manufacturing Processes Reference Guide 931:Top view of a double-cut surface broach 68:, which is also sometimes shortened to 2881: 1760: 1628: 1541: 1539: 1537: 1439: 1372: 1334: 1306:Van De Motter, Chris (February 2006), 919:Example of a double-cut surface broach 510:An internal broach for cutting splines 2375: 1734: 1696: 1408: 1406: 1274: 948: 744:= Length of the workpiece (not shown) 437: 1534: 992: 387: 13: 1513:"Rotary Broaching on a Bridgeport" 1403: 889: 654:= RPT for the semi-finishing teeth 325: 205:to flush the chips from the teeth. 14: 2905: 1671: 343:Motion: push, pull, or stationary 42:Tool with teeth used to cut metal 1722: 1482:Degarmo, Black & Kohser 2003 1467:Degarmo, Black & Kohser 2003 1455:Degarmo, Black & Kohser 2003 1398:Degarmo, Black & Kohser 2003 1329:Degarmo, Black & Kohser 2003 1269:Degarmo, Black & Kohser 2003 1250:Degarmo, Black & Kohser 2003 1211:Degarmo, Black & Kohser 2003 1188:Degarmo, Black & Kohser 2003 1149:Degarmo, Black & Kohser 2003 1137:Degarmo, Black & Kohser 2003 936: 924: 912: 627:= number of semi-finishing teeth 588: 583: 563: 551: 539: 527: 515: 503: 199:to cool the workpiece and broach 180:, essentially a hook, grabs the 1603: 1573: 1522:from the original on 2021-11-16 1505: 1487: 1460: 1433: 1349: 1322: 340:Purpose: single, or combination 290:. However, it still has a good 1216: 1181: 1163:Milling Operations – Broaching 1154: 1142: 1130: 717:= Radius of the gullet (0.25P) 1: 1582:Somma: Offset Rotating Broach 1379:Todd, Allen & Alting 1994 1344:Todd, Allen & Alting 1994 1124: 663:= RPT for the finishing teeth 251:on the exit side of the cut. 202:to lubricate cutting surfaces 850:For some circular broaches, 753:A progressive surface broach 699:= Diameter of the tooth root 645:= RPT for the roughing teeth 364:Most broaches are made from 195:are used for three reasons: 7: 1688:How Broaching Machines Work 1112: 989:through one-hit machining. 765:), semi-finishing section ( 690:= Diameter of the tooth tip 636:= number of finishing teeth 10: 2910: 2894:Metalworking cutting tools 2098:Magnetic switchable device 1678:How To Rotary Broach Video 1050:Width across corners (AC) 772:), and finishing section ( 618:= number of roughing teeth 155: 131: 122:single-point cutting tools 2799: 2414: 2316: 2259: 2121: 2048: 1950: 1899: 1811: 1768: 1730: 1656:, Industrial Press Inc., 1308:"The Basics of Broaching" 705:= Depth of a tooth (0.4P) 575: 337:Use: internal, or surface 318:, but is still possible. 2840:Machine and metalworking 1555:Cutting Tool Engineering 1009:Off-axis (wobble) angle 534:The semi-finishing teeth 321: 212: 152:and broaching machines. 2850:Measuring and alignment 2156:Engineer's spirit level 1614:(9th ed.), Wiley, 231:surface feet per minute 2579:Oxy-fuel cutting torch 1871:Oxy-fuel cutting torch 1055: 958: 901: 754: 447: 330: 222: 39: 31: 2356:Tools and terminology 2123:Measuring instruments 1000: 956: 902: 785:free-machining steels 752: 445: 329: 300:free machining steels 220: 37: 19: 2815:Cutting and abrasive 869: 732:= Back-off angle or 495:cut-and-recut broach 484:concentricity broach 2449:Ceramic tile cutter 1561:(3), archived from 1548:"One-Pass Polygons" 1469:, pp. 643–644. 1457:, pp. 638–639. 1361:, Polygon Solutions 1331:, pp. 640–641. 1190:, pp. 644–645. 1139:, pp. 637–638. 681:= Rear pilot length 522:The finishing teeth 2246:Thread pitch gauge 2211:Optical comparator 1965:Combination square 1762:Metalworking tools 1056: 973:vertical machine. 959: 949:Broaching machines 897: 755: 546:The roughing teeth 448: 331: 223: 40: 32: 2874: 2873: 2369: 2368: 2312: 2311: 1642:978-0-87263-085-7 1315:Gear Product News 1054: 1053: 895: 438:Internal broaches 431:Straddle broaches 66:broaching machine 2901: 2781:Water jet cutter 2746:Sharpening stone 2584:Pencil sharpener 2396: 2389: 2382: 2373: 2372: 2186:Machinist square 1995:Needlegun scaler 1990:Machinist square 1803:Water jet cutter 1770:Cutting machines 1755: 1748: 1741: 1732: 1731: 1717: 1710: 1703: 1694: 1693: 1666: 1645: 1624: 1598: 1597: 1595: 1594: 1577: 1571: 1569: 1567: 1552: 1543: 1532: 1531: 1529: 1527: 1517: 1509: 1503: 1502: 1499:www.cutwel.co.uk 1491: 1485: 1479: 1470: 1464: 1458: 1452: 1443: 1442:, pp. 7‐32. 1437: 1431: 1429: 1428: 1427: 1410: 1401: 1395: 1382: 1376: 1370: 1369: 1367: 1366: 1353: 1347: 1341: 1332: 1326: 1320: 1318: 1312: 1303: 1272: 1266: 1253: 1247: 1241: 1239: 1238: 1237: 1220: 1214: 1208: 1191: 1185: 1179: 1177: 1176: 1175: 1166:, archived from 1158: 1152: 1146: 1140: 1134: 1003: 1002: 993:Rotary broaching 940: 928: 916: 906: 904: 903: 898: 896: 894: 893: 892: 882: 852:burnishing teeth 723:= Hook angle or 609:= rise per tooth 592: 587: 567: 555: 543: 531: 519: 507: 446:A modular broach 410:Contour broaches 388:Surface broaches 382:tungsten carbide 374:titanium nitride 366:high speed steel 245:Surface finishes 29: 28: 24: 2909: 2908: 2904: 2903: 2902: 2900: 2899: 2898: 2879: 2878: 2875: 2870: 2869: 2795: 2469:Diagonal pliers 2410: 2400: 2370: 2365: 2308: 2255: 2151:Engineer's blue 2117: 2050:Machine tooling 2044: 1946: 1922:Hydraulic press 1895: 1807: 1764: 1759: 1726: 1721: 1674: 1664: 1643: 1622: 1606: 1601: 1592: 1590: 1579: 1578: 1574: 1565: 1550: 1544: 1535: 1525: 1523: 1515: 1511: 1510: 1506: 1493: 1492: 1488: 1480: 1473: 1465: 1461: 1453: 1446: 1438: 1434: 1425: 1423: 1412: 1411: 1404: 1396: 1385: 1377: 1373: 1364: 1362: 1355: 1354: 1350: 1342: 1335: 1327: 1323: 1310: 1304: 1275: 1267: 1256: 1248: 1244: 1235: 1233: 1222: 1221: 1217: 1209: 1194: 1186: 1182: 1173: 1171: 1160: 1159: 1155: 1147: 1143: 1135: 1131: 1127: 1115: 1042:Pilot diameter 1039: 1028: 1017: 995: 951: 944: 941: 932: 929: 920: 917: 888: 887: 883: 881: 870: 867: 866: 782: 778: 771: 764: 747: 743: 734:clearance angle 698: 689: 680: 671: 662: 653: 644: 635: 626: 617: 578: 571: 568: 559: 558:The front pilot 556: 547: 544: 535: 532: 523: 520: 511: 508: 440: 390: 324: 312:stainless steel 215: 158: 134: 43: 26: 22: 21: 12: 11: 5: 2907: 2897: 2896: 2891: 2872: 2871: 2868: 2867: 2862: 2857: 2852: 2847: 2842: 2837: 2832: 2827: 2822: 2817: 2812: 2807: 2805:Types of tools 2801: 2800: 2797: 2796: 2794: 2793: 2788: 2783: 2778: 2773: 2768: 2763: 2758: 2753: 2748: 2743: 2741:Sharpening jig 2738: 2737: 2736: 2731: 2726: 2718: 2713: 2708: 2707: 2706: 2701: 2696: 2691: 2686: 2681: 2676: 2671: 2666: 2661: 2656: 2651: 2641: 2636: 2631: 2626: 2621: 2616: 2611: 2606: 2601: 2596: 2591: 2586: 2581: 2576: 2571: 2566: 2564:Milling cutter 2561: 2556: 2551: 2546: 2541: 2536: 2531: 2526: 2524:Grinding wheel 2521: 2516: 2511: 2506: 2501: 2496: 2491: 2486: 2481: 2476: 2471: 2466: 2461: 2456: 2451: 2446: 2441: 2436: 2431: 2426: 2421: 2415: 2412: 2411: 2399: 2398: 2391: 2384: 2376: 2367: 2366: 2364: 2363: 2358: 2353: 2348: 2343: 2338: 2333: 2328: 2323: 2317: 2314: 2313: 2310: 2309: 2307: 2306: 2301: 2296: 2291: 2286: 2281: 2276: 2271: 2265: 2263: 2261:Smithing tools 2257: 2256: 2254: 2253: 2248: 2243: 2238: 2233: 2228: 2223: 2218: 2213: 2208: 2203: 2198: 2193: 2188: 2183: 2178: 2176:Go/no go gauge 2173: 2168: 2163: 2158: 2153: 2148: 2146:Dial indicator 2143: 2138: 2133: 2127: 2125: 2119: 2118: 2116: 2115: 2110: 2105: 2100: 2095: 2090: 2085: 2080: 2075: 2070: 2065: 2060: 2054: 2052: 2046: 2045: 2043: 2042: 2037: 2032: 2027: 2022: 2017: 2012: 2007: 2002: 1997: 1992: 1987: 1982: 1977: 1972: 1967: 1962: 1956: 1954: 1948: 1947: 1945: 1944: 1942:Stamping press 1939: 1934: 1929: 1924: 1919: 1914: 1909: 1903: 1901: 1897: 1896: 1894: 1893: 1888: 1883: 1878: 1873: 1868: 1863: 1861:Milling cutter 1858: 1853: 1848: 1843: 1838: 1833: 1828: 1823: 1817: 1815: 1809: 1808: 1806: 1805: 1800: 1795: 1790: 1785: 1780: 1774: 1772: 1766: 1765: 1758: 1757: 1750: 1743: 1735: 1728: 1727: 1720: 1719: 1712: 1705: 1697: 1691: 1690: 1685: 1680: 1673: 1672:External links 1670: 1669: 1668: 1662: 1647: 1641: 1626: 1620: 1605: 1602: 1600: 1599: 1572: 1533: 1504: 1486: 1484:, p. 644. 1471: 1459: 1444: 1432: 1402: 1400:, p. 643. 1383: 1371: 1348: 1333: 1321: 1273: 1271:, p. 642. 1254: 1252:, p. 640. 1242: 1215: 1213:, p. 641. 1192: 1180: 1153: 1151:, p. 638. 1141: 1128: 1126: 1123: 1122: 1121: 1114: 1111: 1095: 1094: 1052: 1051: 1048: 1044: 1043: 1040: 1037: 1033: 1032: 1029: 1026: 1022: 1021: 1018: 1015: 1011: 1010: 1007: 994: 991: 950: 947: 946: 945: 942: 935: 933: 930: 923: 921: 918: 911: 908: 907: 891: 886: 880: 877: 874: 780: 776: 769: 762: 746: 745: 741: 736: 727: 718: 712: 706: 700: 696: 691: 687: 682: 678: 673: 672:= Shank length 669: 664: 660: 655: 651: 646: 642: 637: 633: 628: 624: 619: 615: 610: 604: 597: 577: 574: 573: 572: 569: 562: 560: 557: 550: 548: 545: 538: 536: 533: 526: 524: 521: 514: 512: 509: 502: 488:minor diameter 439: 436: 425:involute gears 389: 386: 351: 350: 347: 344: 341: 338: 323: 320: 214: 211: 207: 206: 203: 200: 193:Cutting fluids 157: 154: 133: 130: 41: 9: 6: 4: 3: 2: 2906: 2895: 2892: 2890: 2889:Cutting tools 2887: 2886: 2884: 2877: 2866: 2863: 2861: 2858: 2856: 2853: 2851: 2848: 2846: 2843: 2841: 2838: 2836: 2833: 2831: 2828: 2826: 2823: 2821: 2818: 2816: 2813: 2811: 2808: 2806: 2803: 2802: 2798: 2792: 2791:Wire stripper 2789: 2787: 2784: 2782: 2779: 2777: 2776:Utility knife 2774: 2772: 2769: 2767: 2764: 2762: 2759: 2757: 2754: 2752: 2749: 2747: 2744: 2742: 2739: 2735: 2732: 2730: 2727: 2725: 2722: 2721: 2719: 2717: 2714: 2712: 2709: 2705: 2702: 2700: 2697: 2695: 2692: 2690: 2687: 2685: 2682: 2680: 2677: 2675: 2672: 2670: 2667: 2665: 2662: 2660: 2657: 2655: 2652: 2650: 2647: 2646: 2645: 2642: 2640: 2637: 2635: 2632: 2630: 2627: 2625: 2622: 2620: 2617: 2615: 2612: 2610: 2607: 2605: 2602: 2600: 2599:Plasma cutter 2597: 2595: 2592: 2590: 2587: 2585: 2582: 2580: 2577: 2575: 2572: 2570: 2567: 2565: 2562: 2560: 2557: 2555: 2552: 2550: 2547: 2545: 2542: 2540: 2537: 2535: 2532: 2530: 2527: 2525: 2522: 2520: 2517: 2515: 2512: 2510: 2507: 2505: 2502: 2500: 2497: 2495: 2492: 2490: 2487: 2485: 2482: 2480: 2477: 2475: 2474:Diamond blade 2472: 2470: 2467: 2465: 2462: 2460: 2457: 2455: 2452: 2450: 2447: 2445: 2442: 2440: 2437: 2435: 2432: 2430: 2427: 2425: 2422: 2420: 2417: 2416: 2413: 2408: 2404: 2397: 2392: 2390: 2385: 2383: 2378: 2377: 2374: 2362: 2359: 2357: 2354: 2352: 2349: 2347: 2344: 2342: 2339: 2337: 2334: 2332: 2329: 2327: 2324: 2322: 2319: 2318: 2315: 2305: 2302: 2300: 2297: 2295: 2292: 2290: 2287: 2285: 2282: 2280: 2277: 2275: 2272: 2270: 2267: 2266: 2264: 2262: 2258: 2252: 2251:Vernier scale 2249: 2247: 2244: 2242: 2239: 2237: 2236:Surface plate 2234: 2232: 2229: 2227: 2224: 2222: 2219: 2217: 2214: 2212: 2209: 2207: 2204: 2202: 2199: 2197: 2196:Marking gauge 2194: 2192: 2189: 2187: 2184: 2182: 2179: 2177: 2174: 2172: 2169: 2167: 2164: 2162: 2159: 2157: 2154: 2152: 2149: 2147: 2144: 2142: 2139: 2137: 2134: 2132: 2129: 2128: 2126: 2124: 2120: 2114: 2111: 2109: 2106: 2104: 2101: 2099: 2096: 2094: 2093:Machine taper 2091: 2089: 2086: 2084: 2081: 2079: 2078:Indexing head 2076: 2074: 2071: 2069: 2066: 2064: 2061: 2059: 2056: 2055: 2053: 2051: 2047: 2041: 2038: 2036: 2033: 2031: 2028: 2026: 2023: 2021: 2018: 2016: 2013: 2011: 2008: 2006: 2003: 2001: 1998: 1996: 1993: 1991: 1988: 1986: 1983: 1981: 1978: 1976: 1973: 1971: 1968: 1966: 1963: 1961: 1958: 1957: 1955: 1953: 1949: 1943: 1940: 1938: 1935: 1933: 1930: 1928: 1927:Machine press 1925: 1923: 1920: 1918: 1917:English wheel 1915: 1913: 1910: 1908: 1905: 1904: 1902: 1900:Forming tools 1898: 1892: 1889: 1887: 1884: 1882: 1879: 1877: 1874: 1872: 1869: 1867: 1864: 1862: 1859: 1857: 1854: 1852: 1849: 1847: 1844: 1842: 1839: 1837: 1834: 1832: 1829: 1827: 1824: 1822: 1819: 1818: 1816: 1814: 1813:Cutting tools 1810: 1804: 1801: 1799: 1796: 1794: 1791: 1789: 1786: 1784: 1781: 1779: 1776: 1775: 1773: 1771: 1767: 1763: 1756: 1751: 1749: 1744: 1742: 1737: 1736: 1733: 1729: 1725: 1718: 1713: 1711: 1706: 1704: 1699: 1698: 1695: 1689: 1686: 1684: 1681: 1679: 1676: 1675: 1665: 1663:0-8311-3049-0 1659: 1655: 1654: 1648: 1644: 1638: 1634: 1633: 1627: 1623: 1621:0-471-65653-4 1617: 1613: 1608: 1607: 1589:on 2011-07-16 1588: 1584: 1583: 1576: 1568:on 2011-07-08 1564: 1560: 1556: 1549: 1542: 1540: 1538: 1521: 1514: 1508: 1500: 1496: 1490: 1483: 1478: 1476: 1468: 1463: 1456: 1451: 1449: 1441: 1436: 1422:on 2010-07-26 1421: 1417: 1416: 1409: 1407: 1399: 1394: 1392: 1390: 1388: 1381:, p. 18. 1380: 1375: 1360: 1359: 1352: 1346:, p. 17. 1345: 1340: 1338: 1330: 1325: 1317:(1206): 27–30 1316: 1309: 1302: 1300: 1298: 1296: 1294: 1292: 1290: 1288: 1286: 1284: 1282: 1280: 1278: 1270: 1265: 1263: 1261: 1259: 1251: 1246: 1232:on 2008-12-04 1231: 1227: 1226: 1219: 1212: 1207: 1205: 1203: 1201: 1199: 1197: 1189: 1184: 1170:on 2012-07-13 1169: 1165: 1164: 1157: 1150: 1145: 1138: 1133: 1129: 1120: 1117: 1116: 1110: 1108: 1107:machine tools 1103: 1099: 1092: 1091: 1090: 1087: 1084: 1079: 1077: 1076:wobble broach 1071: 1069: 1065: 1064:wobble broach 1061: 1060:rotary broach 1049: 1046: 1045: 1041: 1035: 1034: 1031:Front relief 1030: 1024: 1023: 1019: 1013: 1012: 1008: 1005: 1004: 999: 990: 988: 982: 978: 974: 971: 966: 964: 955: 939: 934: 927: 922: 915: 910: 909: 884: 878: 875: 872: 865: 864: 863: 859: 857: 853: 848: 845: 841: 836: 833: 829: 825: 821: 817: 812: 810: 806: 802: 798: 793: 791: 790:chip breakers 786: 775: 768: 761: 751: 740: 737: 735: 731: 728: 726: 722: 719: 716: 713: 710: 707: 704: 701: 695: 692: 686: 683: 677: 674: 668: 665: 659: 656: 650: 647: 641: 638: 632: 629: 623: 620: 614: 611: 608: 605: 602: 599: 598: 596: 593: 591: 586: 581: 566: 561: 554: 549: 542: 537: 530: 525: 518: 513: 506: 501: 500: 499: 496: 491: 489: 485: 480: 478: 474: 469: 466: 462: 460: 456: 452: 444: 435: 432: 428: 426: 422: 417: 413: 411: 407: 405: 401: 400:Slot broaches 397: 395: 385: 383: 379: 375: 371: 367: 362: 360: 356: 348: 345: 342: 339: 336: 335: 334: 328: 319: 317: 313: 309: 305: 301: 297: 293: 292:machinability 289: 285: 281: 277: 273: 269: 265: 264:copper alloys 261: 257: 252: 250: 246: 242: 238: 234: 232: 227: 219: 210: 204: 201: 198: 197: 196: 194: 190: 188: 183: 179: 175: 171: 167: 162: 153: 151: 150:form grinding 147: 143: 139: 129: 127: 123: 118: 114: 108: 106: 102: 101:screw machine 98: 94: 90: 86: 81: 79: 78:screw machine 75: 71: 67: 63: 59: 55: 51: 47: 36: 20:A push style 18: 2876: 2669:Concrete saw 2664:Circular saw 2649:Abrasive saw 2609:Pocket knife 2594:Pizza cutter 2569:Nail clipper 2529:Honing steel 2514:Glass cutter 2479:Diamond tool 2464:Cutting tool 2438: 2294:Steam hammer 2241:Tape measure 2231:Straightedge 2216:Radius gauge 2191:Marking blue 2181:Height gauge 2161:Feeler gauge 2141:Center gauge 2108:Rotary table 2088:Lathe center 2000:Piercing saw 1985:Hand scraper 1856:Hand scraper 1820: 1724:Metalworking 1652: 1631: 1611: 1604:Bibliography 1591:, retrieved 1587:the original 1581: 1575: 1563:the original 1558: 1554: 1524:. Retrieved 1507: 1498: 1489: 1462: 1435: 1424:, retrieved 1420:the original 1414: 1374: 1363:, retrieved 1357: 1351: 1324: 1314: 1245: 1234:, retrieved 1230:the original 1224: 1218: 1183: 1172:, retrieved 1168:the original 1162: 1156: 1144: 1132: 1104: 1100: 1096: 1088: 1080: 1075: 1072: 1068:Swiss lathes 1063: 1059: 1057: 983: 979: 975: 967: 960: 860: 851: 849: 843: 839: 837: 831: 827: 823: 819: 813: 808: 804: 800: 796: 794: 789: 773: 766: 759: 756: 738: 729: 720: 714: 708: 702: 693: 684: 675: 666: 657: 648: 639: 630: 621: 612: 606: 600: 594: 582: 579: 494: 492: 483: 481: 476: 472: 470: 464: 463: 454: 450: 449: 430: 429: 416:Pot broaches 415: 414: 409: 408: 399: 398: 393: 391: 368:(HSS) or an 363: 358: 354: 352: 332: 253: 239: 235: 228: 224: 208: 191: 181: 177: 173: 169: 163: 159: 135: 116: 109: 82: 69: 65: 61: 57: 53: 45: 44: 2865:Woodworking 2766:Switchblade 2629:Razor strop 2614:Putty knife 2554:Meat slicer 2499:Emery cloth 2484:Disc cutter 2459:Countersink 2434:Bolt cutter 2326:Fabrication 2304:Trip hammer 2299:Swage block 2284:Hardy tools 2201:Marking out 2171:Gauge block 2058:Angle plate 2020:Tap and die 1937:Screw press 1932:Punch press 1886:Tipped tool 1841:Countersink 1836:Counterbore 1440:Drozda 1983 970:arbor press 844:progressive 828:free egress 394:slab broach 370:alloy steel 296:mild steels 168:, called a 146:World War I 103:parts, and 2883:Categories 2786:Wire brush 2756:Steel wool 2674:Coping saw 2589:Pipecutter 2544:Lawn mower 2346:Metallurgy 2206:Micrometer 2131:Bore gauge 1952:Hand tools 1593:2010-06-08 1426:2009-04-12 1365:2010-06-08 1236:2009-04-12 1174:2009-04-12 1125:References 856:burnishing 840:double-cut 725:rake angle 308:Rockwell C 294:rating on 284:composites 241:Tolerances 170:workholder 2699:Miter saw 2639:Sandpaper 2559:Mezzaluna 2494:Drill bit 2489:Drawknife 2444:Burnisher 2341:Machining 2336:Jewellery 2035:Workbench 1970:Drift pin 1793:Miter saw 1501:. Cutwel. 963:hydraulic 876:≅ 820:rotor-cut 423:for some 378:cast iron 268:aluminium 105:stampings 50:machining 46:Broaching 2820:Forestry 2810:Cleaning 2771:Tool bit 2720:Scraper 2716:Scissors 2704:Wire saw 2694:Hole saw 2689:Hand saw 2659:Chainsaw 2407:abrasive 2351:Smithing 2289:Pritchel 2226:Sine bar 1891:Tool bit 1846:End mill 1783:Cold saw 1520:Archived 1113:See also 832:nibbling 824:jump-cut 816:castings 805:back-off 355:built-up 316:titanium 304:hardness 272:graphite 174:elevator 144:. After 97:forgings 93:castings 2845:Masonry 2835:Kitchen 2761:Surform 2711:Scalpel 2684:Hacksaw 2679:Fretsaw 2654:Bandsaw 2574:Nibbler 2549:Machete 2403:Cutting 2361:Welding 2331:Forming 2321:Casting 2136:Caliper 2113:Wiggler 2103:Mandrel 2073:Fixture 2015:Scriber 1975:Hacksaw 1866:Nibbler 1778:Bandsaw 1516:(Video) 1083:drafted 603:= pitch 595:where: 465:Modular 421:hobbing 404:milling 359:modular 288:plastic 276:rubbers 274:, hard 187:rifling 166:fixture 156:Process 138:pulleys 132:History 89:keyways 85:splines 25:⁄ 2855:Mining 2825:Garden 2634:Reamer 2519:Grater 2454:Chisel 2439:Broach 2279:Fuller 2068:Collet 2040:Wrench 2005:Pliers 1980:Hammer 1881:Shears 1876:Reamer 1831:Chisel 1821:Broach 1798:Plasma 1660:  1639:  1618:  1526:24 May 1119:Reamer 576:Design 473:keyway 286:, and 260:bronze 178:puller 126:shaper 70:broach 62:rotary 58:linear 54:broach 2860:Power 2751:Snips 2734:Paint 2624:Razor 2604:Plane 2539:Laser 2534:Knife 2429:Blade 2409:tools 2274:Forge 2269:Anvil 2221:Ruler 2166:Gauge 2063:Chuck 2025:Tongs 2010:Punch 1960:Clamp 1907:Brake 1788:Laser 1566:(PDF) 1551:(PDF) 1311:(PDF) 1020:Rake 459:arbor 455:shell 451:Solid 322:Types 256:brass 249:burrs 213:Usage 182:pilot 142:gears 74:lathe 48:is a 2830:Hand 2729:Hand 2724:Card 2619:Rasp 2509:Froe 2504:File 2419:Adze 2405:and 2030:Vise 1851:File 1826:Burr 1658:ISBN 1637:ISBN 1616:ISBN 1528:2011 987:Torx 879:0.35 818:, a 797:hook 795:The 493:The 477:horn 392:The 314:and 298:and 280:wood 140:and 117:step 113:feed 111:the 60:and 2644:Saw 2424:Axe 2083:Jig 1912:Die 1062:or 830:or 822:or 607:RPT 357:or 120:of 76:or 2885:: 1559:58 1557:, 1553:, 1536:^ 1497:. 1474:^ 1447:^ 1405:^ 1386:^ 1336:^ 1313:, 1276:^ 1257:^ 1195:^ 1078:. 1070:. 679:RP 482:A 380:, 372:; 282:, 278:, 270:, 266:, 262:, 258:, 189:. 128:. 99:, 95:, 87:, 27:16 2395:e 2388:t 2381:v 1754:e 1747:t 1740:v 1716:e 1709:t 1702:v 1667:. 1646:. 1625:. 1596:. 1570:. 1530:. 1430:. 1368:. 1319:. 1240:. 1178:. 1047:w 1038:p 1036:d 1027:f 1025:θ 1016:r 1014:θ 1006:θ 890:w 885:L 873:P 809:γ 807:( 801:α 799:( 781:f 777:f 774:t 770:s 767:t 763:r 760:t 758:( 742:w 739:L 730:γ 721:α 715:R 709:L 703:D 697:2 694:D 688:1 685:D 676:L 670:s 667:L 661:f 658:t 652:s 649:t 643:r 640:t 634:f 631:n 625:s 622:n 616:r 613:n 601:P 23:5

Index



machining
lathe
screw machine
splines
keyways
castings
forgings
screw machine
stampings
feed
single-point cutting tools
shaper
pulleys
gears
World War I
form grinding
fixture
rifling
Cutting fluids

surface feet per minute
Tolerances
Surface finishes
burrs
brass
bronze
copper alloys
aluminium

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