What is the typical oven/autoclave ramp up and ramp down procedures?
Temperature ramp up should not exceed 1°F per minute. This allows the temperature to be evenly absorbed during heat expansion which will reduce possibility of internal stress and warping. Temperature ramp down should not exceed 2°F per minute. This allows the temperature of the tool to come down slowly so contraction does not cause internal stress and cracking in the thin sections of the tool. In thick tools with thin webs or sections the cool down should be even slower. Prior testing is always `;recommended before heat cycling on actual tool.
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