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Manufacturing and Production: Part 21
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Flank and crater wear

Ashish Futtan
MTECH IIT Bombay|Quora Top Writer for GATE Mechanical 2019|Cracked IIT (ISM) Dhanbad,IIT DELHI|3 times GATE qualified| Singer|

Unacademy user
Thanks a lot mam its very useful and presented in best way thanku so much
  1. 1 manufacturing and production


  2. HELLO! I am ASHISH FUTTAN MTECH-lIT BOMBAY TOP STAR EDUCATOR VERIFIED EDUCATOR CRACKED VARIOUS IITs 3 TIMES GATE QUALIFIED PUBLISHED MORE THAN 600 LESSONS


  3. IES 2010 Flank wear occurs on the (a) Relief face of the tool (b) Rake face (c) Nose of the tool (d) Cutting edge


  4. IES - 2007 Flank wear occurs mainly on which of the following? (a) Nose part and top face (b) Cutting edge only (c) Nose part, front relief face, and side relief face of the cutting tool (d) Face of the cutting tool at a short distance from the cutting edge


  5. IES 1994 Assertion (A): Tool wear is expressed in terms of flank wear rather than crater wear. Reason (R): Measurement of flank wear is simple and more accurate. (a) Both A and R are individually true and R is the correct explanation of A explanation of A (c) A is true but R is false (d) A is false but R is true


  6. GATE-2014 Cutting tool is much harder than the work-piece. Yet the tool wears out during the tool-work interaction, because (a) extra hardness is imparted to the work-piece due to coolant used (b) oxide layers on the work-piece surface impart extra hardness to it (c) extra hardness is imparted to the work-piece due to severe rate of strain (d) vibration is induced in the machine tool


  7. IES 2004 Consider the following statements: During the third stage of tool-wear, rapid deterioration of tool edge takes place because 1. Flank wear is only marginal 2. Flank wear is large 3. Temperature of the tool increases gradually 4. Temperature of the tool increases drastically Which of the statements given above are correct? (a) 1 and 3 (b) 2 and 4 (c) 1 and 4 (d) 2 and 3


  8. IES 2002 Crater wear on tools always starts at some distance from the tool tip because at that point (a) Cutting fluid does not penetrate (b) Normal stress on rake face is maximum (c) Temperature is maximum (d) Tool strength is minimum


  9. IAS - 2007 Why does crater wear start at some distance from the tool tip? (a) Tool strength is minimum at that region (b) Cutting fluid cannot penetrate that region (c) Tool temperature is maximum in that region (d) Stress on rake face is maximum at that region


  10. IES 2000 Crater wear starts at some distance from the tool tip because (a) Cutting fluid cannot penetrate that region (b) Stress on rake face is maximum at that region (c) Tool strength is minimum at that region (d) Tool temperature is maximum at that region