In which one of the following welding techniques is vacuum environment required?

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asked Dec 23, 2017 in production by chandu (215k points)

In which one of the following welding techniques is vacuum environment required?

(a) Ultrasonic welding

(b) Laser beam welding

(c) Plasma arc welding

(d) Electron beam welding

ies-objectives-2
2002
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welding

In which one of the following welding techniques is vacuum environment required?

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