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Manufacturing And Production Technology

Manufacturing And Production Technology
In drilling operation, the metal is removed by

Shearing and compression
Shearing and extrusion
Shearing
Extrusion

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Manufacturing And Production Technology
EDM machining is applied for

Shaping carbide dies and punches having complicated profiles
Making large number of small holes in sieves and fuel nozzles
Embossing and engraving on harder materials
All of the listed here

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Manufacturing And Production Technology
In drilling Bakelite and fibrous plastics, the point angle of a drill is

90°
135°
150°
118°

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Manufacturing And Production Technology
In a gating system, the ratio 1: 2: 4 represents

Sprue base area: ingate area: casting area
Sprue base area: runner area: ingate area
Pouring basin area: ingate area: runner area
Runner area: ingate area: casting area

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Manufacturing And Production Technology
The soft grade grinding wheels are denoted by the letters

A to P
I to P
A to H
Q to Z

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Manufacturing And Production Technology
The ratio between two consecutive spindle speeds for a six-speed drilling machine using drills of diameter 6.25 to 25 mm size and at a cutting velocity of 18 m/min is

1.02
1.66
1.32
1.82

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