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Small nose radius

A. Increases tool life

B. Decreases tool life

C. Produces chipping and decreases tool life

D. Results in excessive stress concentration and greater heat generation

Correct Answer : D.


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  1. A taper tap has
  2. A dynamometer is a device used for the measurement of
  3. In the relation VTn = C, the value of n for carbide tools is
  4. The method of grinding used to produce internal cylindrical holes and tapers, is
  5. The factor responsible for the formation of discontinuous chips is
  6. The advantage of a broaching operation is that
  7. The addition of lead, sulphur and phosphorus to low carbon steels, help to
  8. The operation of smoothing and squaring the surface around a hole is known as
  9. The main purpose of spheroidising treatment is to improve
  10. The process of removing metal by a cutter which is rotated in the same direction of travel of workpiece,…
  11. In up milling, the thickness of chip is
  12. The cutting speed of a drill depends upon the
  13. The width of cutting edge of a parting off tool varies from
  14. The relief or clearance at the cutting edge of a flat drill varies from
  15. Which of the following operations can be performed with milling cutters?
  16. The cutting speed for counter-boring should be _________ that of drilling operation.
  17. The rake angle of a single point cutting tool corresponds to _________ of a twist drill.
  18. A grinding wheel becomes glazed (i.e. cutting edge takes a glasslike appearance) due to
  19. The cutting fluid mostly used for machining steel is
  20. EDM machining is applied for
  21. In oblique cutting of metals, the cutting edge of the tool is
  22. Fixtures are used
  23. In hot machining, tool is made of
  24. The cutting force in up milling __________ per tooth movement of the cutter.
  25. The taper on the lathe spindle is
  26. Glazing in grinding wheels __________ cutting capacity.
  27. If a gas metal arc process uses a low arc voltage and the arc is continuously interrupted as the molten…
  28. Gears can be best produced on mass production by
  29. The lathe centres are provided with standard taper known as
  30. Buffing wheels are made of