Subject: Manufacturing Process I
Unit 2: Metal Forming Processes
Forming
Forming is a manufacturing process in which raw material is permanently deformed into desired shape such that the stress induced in the work-piece is more than yield stress but less than ultimate stress.
Examples: Rolling, Forging, Extrusion, Press-working etc.
Types of Forming
Depending upon the working temperature, forming can be classified in two categories: Hot Working and Cold Working.
Hot Working
Hot forming is a forming process where the working temperature of the material is kept above its recrystallization temperature.
Examples: hot rolling, hot extrusion, hot forging etc.
Cold Working
Cold forming is a forming process performed below the material's recrystallization temperature.
Examples: cold rolling, cold extrusion, cold forging, press working etc.
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Unit 2 Part 2: Rolling Process
Unit 2 Part 3: Forging Process
Unit 2 Part 4: Extrusion Process
Unit 2 Part 5: Press Working Operations
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