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What are the objectives of heat treatment of metals?
Objectives of heat treatment-
Cause relief of internal stresses developed while cold working, welding, casting, forging etc.
Harden and strengthen metals.
Better machine ability.
Change grain size.
Soften metals for further working as in wire drawing or cold rolling.
Improve ductility and toughness.
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The most common DC applications are: Electromagnets and yokes • Relays • Magnetic shields • Electrical measuring devices • Magnetic amplifiers
ac++ programming which calculate molcular weight of hydrocarbon compounds
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