State the uses of each tools: 1. parting off tool 2.boring tool 3. undercutting tool 4. thread tool 5. forming tool 6. shoulder turning tool 7. grooving tool 8. counter boring tool 9. champering tool 10. facing tool 11. threading tool
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State the uses of each tools:
1. parting off tool
2.boring tool
3. undercutting tool
4. thread tool
5. forming tool
6. shoulder turning tool
7. grooving tool
8. counter boring tool
9. champering tool
10. facing tool
11. threading tool
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- Question 19 Which of the following machine tools is the most suitable one for machining of relatively large batches with several operations? Answers: a. Toolroom lathe b. Turret lathe c. Vertical turret lathe d. Engine lathe e. Speed lathe Consider the following statements on milling machines 1. 2. Facing cutters have a tapered or straight shanks End mills usually are bolted at the end of a stub arbor 3 Plain milling cutters are used for profilling as well Answers: a. Only 2 and 3 are correct b. Only 1 and 2 are correct c. Only 1 and 3 are conect d. None of them is correct e Only 1 is correct Question 21 Find the incorrect statement about center type cylindrical grinding. (If you cannot find an incorrect statement among items a, b, c and d then code "e" for this question) Answers: & Workpiece rotates b. Grinding wheel rotates Usually workpiece traverses d, Depth of cut is usually determined by infeed of the grinding wheel e. All are correct Consider the following statements about…Write the NC part program for the part. Holes are threaded and requires two tools; T1 is a 0.5" HSS drill bit and T2 is a 0.5" tapping bit. The rest of the features are cut using a 0.75" HSS milling tool, T3. Feed rate and spindle speed are 10 ipm and 2000 rpm. The material is low- carbon steel. Part thickness is 0.5”. Use dotted lines two show the path of tools movements. Set up proper operation conditions as discussed in the class today.State the uses of each tools: 1. parting off tool 2.boring tool 3. undercutting tool 4. thread tool 5. forming tool 6. shoulder turning tool 7. grooving tool 8. counter boring tool 9. champering tool 10. facing tool 11. threading tool Don't write. Please answer in type written
- Answer the following questions by circling True or False. 5. Tool layouts can be converted into a cam profile that is used for the control of the tool. .... () 6. Higher the rake angle, less the cutting forces. 7. A very large clearance angle increases the strength of the tool tip. 8. The continuous chip causes poor surface finish and low tool life. 9. Ceramics are the hardest tool materials in the world. 10. The smaller the cutting ratio, the larger the cutting deformation. 11. A shaper can be used for maching flat surfaces in horizontal and angular directions. 12. During the return stroke of the shaper, the cutting tool will simply be sliding... 13. The cutting speed of the hydraulic shaper changes throughout most of the cutting stroke. 14. Arbour-mounted cutters are used in vertical axis machines to generate flat surfaces... 15. Dividing head is an important attachment that is used to divide the periphery of the workpiece into a number of divisions to machine surfaces.. () () ()2. Write a complete program to mill around the part. The endmill is .500 diameter, and you want to leave .010 stock for a finish pass. Enter a diameter offset number (Dn) command for tool DIAMETER Geometry of .520 for machining a roughing pass around part. And then define another pass around part using the same program coordinates but a different diameter offset number (Dn), and enter in the correct diameter offset value of .500 to machine part to the finish size. TOOL 1 has 0.520 in D21 and 0.500 in D01 Tool Speed (rpm) Feed (ipm) Operation Finish outside contour, x .50 deep Tooling 1 .5D endmill 1200 6. 25 R.25 2 PL. R .50 2.00 XO YO 4.0 SO. 1.0 SQ. 5 DA. EM 1.250- X-2.5 Y-2.0 START POINTMatch column A with Column B (Return this page with your answer sheet) No Column A These are machine tools in which components are Column B No Multi-Spindle A machined. Automatics Several tools are used so that the turning is Broaching B completed in one cycle. 3 Designed for high production rate machining of screws and similar threaded parts, Job Production 4 These lathes have four to eight spindles arranged Flow Production in a circle on a large drum. This operation is like shaping with multiple teeth E Batch Production and is used to machine internal and external surfaces such as holes of circular. 6 The workpiece is supported on its OD and rotated F Auto Lathe around an axis created by this reference surface. The workpiece is free to shift, and if the support surface is the one being ground, the axis of rotation also shifts. Manufacturing of single, or few products to a Electrical copying System G customer's individual specification. 8 Parts are manufactured in fixed quantities H…
- Name the milling machine operation in which the milling cutter axis is perpendicular to the flat surface of the workpiece surface to be machined. Face milling Form milling Angular milling Slab millingTo perform a facing cut using a tool with a nose radius of 1/32, what will the programmed X-axis end point at the center of the part be?Question 1 By using a labelled diagram describe the function of a horizontal milling machine. Describe two methods of producing screw threads in the workshop. Describe the various tool life criteria that are used to estimate the life of a cutting tool. Describe the various milling cutters that are used on a vertical and horizontal milling machine and state for what purpose they are used. Describe 2 methods of producing tapers on a lathe machine. Your answers to each question should be supported by suitable diagrams for clarity.
- 1. If a machinist wanted to drill a % inch hole in a piece of machine steel using a high speed steel drill. At what speed in revolutions per minute should he operate the drill press? 2. Find the revolutions per minute of an 8 mm drill if it is used to cut an aluminum workpiece using a high carbon steel drill. 3. The rpm setting of the drill press is set to 600 rpm. What is the maximum diameter in inches of a high speed drill if it is used to drill a tool steel material? 4. A drill press has the following rpm settings; 350, 600, 1100, & 1600. What rpm setting must be used if a 15 mm high speed steel drill is used to cut brass workpiece? 5. A machine operator drills a hole of a 3/8 inch diameter to a stainless steel using a carbon steel drill. He sets the drill press rpm setting to 900 rpm. Is he operating at correct setting? If not, then what must be the correct rpm setting considering that the machine has the following rpm settings of 300, 600, 900, 1200, and 1800?Answer the following questions by circling True or False. 1. Capstan and turret lathes utilise many tools simultaneously to improve the productivity. ... 2. Lead screws in the machine tools can convert linear motion to rotary motion. 3. Automatic lathes are used for medium batch production. 4. Arithmetic progression is preferred for higher spindle speeds. 5. Tool layouts can be converted into a cam profile that is used for the control of the tool. () () 6. Higher the rake angle, less the cutting forces. 7. A very large clearance angle increases the strength of the tool tip. 8. The continuous chip causes poor surface finish and low tool life. 9. Ceramics are the hardest tool materials in the world. 10. The smaller the cutting ratio, the larger the cutting deformation. 11. A shaper can be used for maching flat surfaces in horizontal and angular directions. 12. During the return stroke of the shaper, the cutting tool will simply be sliding... 13. The cutting speed of the hydraulic shaper…1. List the operations and the tools needed to make the following shape.2. Find the speed of rotation (RPM N) of each tool during roughing andfinishing.The material of the piece is Stainless Steel (C45) with CARBIDE TOOL.