Which of the following operations is NOT performed in a shaper machine?

This question was previously asked in
DFCCIL Executive Mechanical 28 Sept 2021 Paper (Shift 1)
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  1. Horizontal cutting
  2. Vertical cutting
  3. Inclined cutting
  4. Duplex cutting

Answer (Detailed Solution Below)

Option 4 : Duplex cutting
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Detailed Solution

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Explanation:

A shaper is a reciprocating type of machine tool intended primarily to produce horizontal, vertical or inclined flat surfaces.

In the shaper, the cutting tool has a reciprocating motion and it cuts only during the forward stroke only. The work is held in a vice bolted to the work table.

On a standard shaper the following operations can be performed:

a) Machining of vertical surfaces

b) Machining of horizontal surfaces

c) Machining of angular surfaces

d) Machining of curved surfaces

e) Machining of irregular surfaces

f) Machining of slots and keyways 

Hence Duplex cutting can not be performed in a shaper machine.

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