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• Bending: forming process causes the sheet metal to undergo the desired shape change by bending without failure.
• Stretching: forming process causes the sheet metal to undergo the desired shape change by stretching without failure.
• Drawing: forming process causes the sheet metal to undergo the desired shape change by drawing without failure.
• Roll forming: Roll forming is a process by which a metal strip is progressively bent as it passes through a series of forming rolls.
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