Cutting Tools Episode 2 Part 5 docx

... internal broaches. Keyway Broach: Almost all key- ways in machine tools and parts are cut by a keyway broach - a narrow, flat bar with cutting teeth spaced along one surface. Both external and internal keyways ... number of parts, all of the same diameter and keyway size, are to be machined, an internal keyway broach can be designed to fit into the hole to support the cutting teeth. Onl...

Ngày tải lên: 21/07/2014, 15:20

... idea to true the wheel if it is 90˚ 65 45 1 8 1v 8 1 8 1 8 T R T 60˚ 60˚ 60˚ 45 45 EDC JG R = T 2 R = T 8 R = T 8 R = 3T 10 65 65 80˚ 80˚ 60˚ 23 ˚ 23 ˚ 60˚ R R R R T B T T A F R H T I T S K ... hard, sharp, and cool cutting abrasive. It is one of the newest manufactured abra- sives and 2 1 /2 times harder than alu- minum oxide. It can withstand tem- peratures up to 25 00 de...

Ngày tải lên: 21/07/2014, 15:20

... 400 .26 2 × d .26 2 × 4 RPM = = = 3 82 IPM 30 .5 RPM 3 82 apr = = = .080 in. apr .080 N 8 apt = = = .010 in. SFPM 380 .26 2 × d .26 2 × 6 RPM = = = 24 2 IPM=apt×N×RPM = .006×10 24 2=14 .5 Chap. 12: ... are shown in Figure 12. 5a. Various tapered end mills are shown in Figure 12. 5b. Special End Mills: Ball end mills (Fig. 12. 6a) are available in diameters ranging from 1/ 32 to 2...

Ngày tải lên: 21/07/2014, 15:20

... job being done. In doing very critical parts, 10 to 15 RPM is used, and when polishing, up to 150 RPM is used. one step. Also, less time is required for cleaning parts and processing waste; throughput, ... Figure 18.11. 18 .5 .2 Vertical Spindle Machines Vertical-spindle honing machines are used especially for larger, heavier work. These all have power stroking at speeds from 20 to 120 FP...

Ngày tải lên: 21/07/2014, 15:20

... cases. www.toolingandproduction.com Chapter 17/Tooling & Production 5 Chap. 17: Grinding Methods and Machines tion is shown in Figure 17. 12 and centerless grinder is shown in Figure 17.13. 17 .2. 4 Internal Grinding Internal grinders ... (Fig. 8. 12) . These grinding machines are designed to sharpen milling cutters, reamers, taps, and other machine tool cutters. A tabletop tool and cu...

Ngày tải lên: 21/07/2014, 15:20

... teeth cutting at one time varies from 2 to 10 or more. Saws may be of the continuous cutting (band or rotary) or reciprocating type. A typical sawing operation is shown in Figure 15. 1. The cutting ... be used to supply the feed pressure. FIGURE 15. 5a: Typical vertical band- saw. (Courtesy: Clausing Industries, Inc.) Chap. 15: Saws and Sawing FIGURE 15. 5b: High-production auto- mat...

Ngày tải lên: 21/07/2014, 15:20

... available for end mills and shell mills as shown in Figures 13 . 25 a and 13 . 25 b respectively. For some opera- tions that require the use of tools with non-standard shank sizes, chucks can be used to ... bearing sleeve on the arbor. Style C arbors are used to hold and drive shell end mills (Fig. 25 . 25 b) and some types of face milling cutters and require no outboard support. In some c...

Ngày tải lên: 21/07/2014, 15:20

... on a 1/4-inch hole, .0 15 inch on a 1 /2 inch hole, up to . 0 25 inch on a 1-1 /2 inch hole seems a good starting point. For hand reaming, stock allowances are much smaller, partly because of the difficulty ... tap wrench. (Courtesy: Morse Cutting Tools) Taps are used for threading a wide range of materials both ferrous and non-ferrous. All pipe taps are supplied with 2- 1 /2 to 3-1...

Ngày tải lên: 21/07/2014, 15:20

... the machine size. Cutting Tools: Cutting tools are the same as those used on the table- type machine. Work holding is also the same, and angle plates are fre- quently used. 10.7 .2 Vertical Boring ... the machine at a cutting depth that is greater than the desired cutting depth compen- sates for the radial deflection. When cutting begins, the radial cutting force reduces the...

Ngày tải lên: 21/07/2014, 15:20

... machined parts. The cutting tools were preset, or “set up” by a skilled machinist, and usually several cutting tools were in operation at the same time, reducing the time spent in machining each part. ... machining a heavy part. (Courtesy Giddings & Lewis, LLC) Chap. 5: Turning Methods & Machines www.toolingandproduction.com Chapter 5/ Tooling & Production 7 5. 4 .2...

Ngày tải lên: 21/07/2014, 15:20