Mechanical Engineering :: Manufacturing and Production Technology
- A single point thread cutting tool should ideally have
- During normalizing process of steel, the specimen is heated
- A grinding wheel becomes glazed (i.e. cutting edge takes a glass-like appearance) due to
- Calculate the weld per minute, work speed of circular electrode of 220 mm diameter for carrying out seam welding at 4 welds per cm on 1.6 mm thick mild steel tube. Welding cycle consists of 3 cycles ‘on’ and 2 cycles ‘off’ Power supply is at 50 Hz.
- The helix angle of a drill is __________ for drilling brass.
- The effect of setting a boring tool above center height leads to
- The correct sequence of tool materials in increasing order of their ability to retain their hot hardness is
- Tool life is generally better when
- High speed steel cutting tools operate at cutting speeds _________ than carbon steel tools.
- The drill spindles are provided with standard taper known as
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A.
Increase in the effective rake angle and a decrease in the effective clearance angle |
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B.
Increase in both effective rake angle and effective clearance angle |
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C.
Decrease in the effective rake angle and an increase in the effective clearance angle |
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D.
Decrease in both effective rake angle and effective clearance angle |