Mechanical Engineering :: Manufacturing and Production Technology
- Which of the following statement is wrong?
- An expendable pattern is used in
- In a single point tool, the angle between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base, is known as
- The swing diameter over the bed is ________ the height of the centre measured from the bed of the lathe.
- High speed steel drills can be operated at about _________ the speed of high carbon steel drills.
- If a particular Fe-C alloy contains less than 0.83% carbon, it is called
- A bottoming tap has
- Which of the following statement is correct about nose radius?
- If a gas metal arc process uses a low arc voltage and the arc is continuously interrupted as the molten electrode metal fills up the arc gap is known as
- Friction at the tool-chip interface can be reduced by
|
A.
The diamond is the hardest tool material and can run at cutting speeds about 50 times that of high speed steel tool |
|
B.
The ceramic tools can be used at cutting speeds 40 times that of high speed steel tools |
|
C.
The cemented carbide tools can be used at cutting speeds 10 times that of high speed steel tools |
|
D.
The ceramic tools can withstand temperature up to 600°C only |
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