Cutting Tools Episode 2 Part 8 potx

... types follows: Tool and Cutter Grinders: A tool and cutter grinder was introduced in Chapter 8 - Drilling Operations (Fig. 8. 12) . These grinding machines are designed to sharpen milling cutters, reamers, taps, ... available for sharpening most types of cutting tools. Sharpening of a tap is shown in Fig. 17.17a and grinding of a milling cutter is shown in Fig. 17.17b. Figure 17. 18 sh...

Ngày tải lên: 21/07/2014, 15:20

... from 100 to 25 0 FPM. Figure 18. 5. Typical lapping plates. (Cour- tesy Engis Corporation) Figure 18. 7. Various sizes and shapes of lapped parts. (Courtesy Engis Corporation) Figure 18. 8. Typical ... underly- Figure 18. 13. Plateau honed finish surface at 100x (Cour- tesy: Gehring L.P.) Figure 18. 12. Parts honed on a vertical honing ma- chine. (Courtesy Sunnen Products Co.) Figure 18. 11....

Ngày tải lên: 21/07/2014, 15:20

... 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 u...

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 ... 2 Tooling & Production/April 20 02 www.toolingandproduction.com George Schneider, Jr. CMfgE Professor Emeritus Engineering ... called a saw blade. Sawing is normally used to sep...

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... 14 .8 shows a variety of forms that can be produced by 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 ... 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. Only the cutt...

Ngày tải lên: 21/07/2014, 15:20

... Figure 13.8a. A part being machined on a planer-type milling machine is shown in Figure 13.8b. Planer-type machines are used mostly for machining parts like the bedways for large machine tools, ... 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...

Ngày tải lên: 21/07/2014, 15:20

... .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: Milling Cutters ... milling FIGURE 12. 18: Conventional or up-milling as compared to climb or down-milling. Q = (D.O.C.) × (W.O.C.) × IPM Q 80 (D.O.C.)×(W.O.C.) .25 2 IPM= = =160 Q = = = 80 in...

Ngày tải lên: 21/07/2014, 15:20

... 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 /2 thread chamfer. The nominal ... per side, which makes eight partial FIGURE 11. 12: (a) Spiral-point taps have replaced ‘stan- dard’ taps in many cases. (b) A spiral-fluted bottoming tap. (Courtesy: Morse Cutti...

Ngày tải lên: 21/07/2014, 15:20

... 48 inches for boring cut, drilling, setting the depth of mill- ing cuts, etc. As in the table-type HBM, the spindle diameter and table size specify the machine size. Cutting Tools: Cutting tools ... 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 cu...

Ngày tải lên: 21/07/2014, 15:20

... 400 RPM = ________ = ________ = ____ .26 2 x d .26 2 x .75 .1965 Answer = 20 35. 62 or 20 36 RPM Drilling Feed: Once the cutting speed has been selected for a particular workpiece material and condition, ... Given a .25 inch drill, what is the cutting speed (SFPM) drilling cast iron at 5000 RPM? SFPM = .26 2 x d x RPM SFPM = .26 2 x .25 x 5000 Answer = 327 .5 or 327 SFPM RPM can be ca...

Ngày tải lên: 21/07/2014, 15:20