Machine Tools Matching : Practice Questions and Answers

It gets reciprocating movement.Rotary motion is something like wheel turning and reciprocating motion means back and forth linear mtioon.

It is the function of column. Column is a part of shaper which is mounted on the base.

The usual size of shaper ranges from 175 mm to 900 mm basede upon its application and working.

It is the property of shaper. Here the ram is the reciprocating member of the shaper.

Rotary movement of the drive is converted into reciprocating movement.Rotary motion is something like wheel turning and reciprocating motion means back and forth linear mtioon.

It is expressed in mm. Feed is simply a distance so it unit should be the unit of distance.

It is always given at the end of the return stroke because only in the forward stroke useful work is done.

This is false. The feed is always given when the tool is not cutting the metal.

(nl (m+1)) – It is the right formula for calculating the cutting speed.

It is the formula for calculating the cutting speed.It may be expressed as length (distance) / time.

It is quite difficult to calculate cutting speed as we have to measure the time required by the cutting stroke.

Cutting speed is simply a speed. So its unit should be the unit of time. Here, meter/minute is more appropriate unit for cutting speed.

Only in forward stroke, cutting speed is expressed because only in forward stroke useful work is done.

As per the definition of this machine. The shaper is a reciprocating machine which works only in forward stroke.

Feed, depth of cut, machining time all are cutting parameters. Apart from these, cutting speed and metal removal rate are also termed as cutting parameters.