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The machining of titanium is difficult due to

A. High thermal conductivity of titanium

B. Chemical reaction between tool and work

C. Low tool-chip contact area

D. None of these

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  1. Cast iron during machining produces
  2. Glazing in grinding wheels can be decreased by
  3. Crater wear is predominant in
  4. The crystal structure of austenite is
  5. The grinding wheel speed (surface speed in m/min) usually varies from
  6. As tool and work are not in contact in EDM process
  7. The abrasive recommended for grinding materials of high tensile strength is
  8. Small nose radius
  9. In the relation VTn = C, the value of n for carbide tools is
  10. The tailstock set over required to turn a taper on the entire length of a workpiece having diameters…
  11. In a centre lathe, the cutting tool is fed in _________ with reference to the lathe axis.
  12. Which of the following operations is carried out at a minimum cutting velocity if the machines are equally…
  13. Glazing in grinding wheels takes place when the
  14. Crater wear leads to
  15. The ratio between two consecutive spindle speeds for a six-speed drilling machine using drills of diameter…
  16. Ceramic tools are fixed to tool body by
  17. Which of the following statement is incorrect with reference of lathe cutting tools?
  18. In metal machining, the zone where the maximum heat is generated due to the plastic deformation of metal,…
  19. The average cutting speed for turning mild steel with a high speed steel tool is
  20. The operation performed on a shaper is
  21. A mandrel is used to hold
  22. The tool life in case of a grinding wheel is the time
  23. The lip angle is the angle
  24. Threading is an operation of
  25. The correct sequence of tool materials in increasing order of their ability to retain their hot hardness…
  26. The height of each tooth of a broach is
  27. Which of the following statement is correct for orthogonal cutting system?
  28. In metal machining, the work-tool contact zone is a zone where heat is generated due to
  29. The soft grade grinding wheels are denoted by the letters
  30. The relation between tool life (T) and cutting speed (V) is VTn = Constant. In this relation, the value…