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purpose of pr- heating before welding
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asked
Aug 8, 2017
in
production
by
chandu
(
215k
points)
High alloy steel components are preheated before welding for reducing
(a) Heat affected zone
(b) Total energy consumption
(c) Total time of welding
(d) Welding stresses
production
gate
welding
1991
pre-heating-before-welding
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