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What to do about stamping die deformation
2025-06-20
Causes and solutions for stamping die deformation mainly include the following aspects:
Influence of die material on heat treatment deformation: The chemical composition and original structure of the die material will affect heat treatment deformation. For example, carbon tool steel will produce large thermal stress and organizational stress during quenching, causing the die cavity to shrink or expand. High-alloy steels such as Cr12MoV steel, due to their high carbon and alloy element content, will produce more retained austenite after quenching, which helps to reduce deformation.
Control of heat treatment process: A reasonable heat treatment process can reduce die deformation. For example, air cooling, air cooling, and nitrate bath quenching can reduce the amount of deformation. In addition, controlling the quenching temperature and cooling rate is also key, avoiding stress concentration caused by excessively high temperatures or rapid cooling.
Daily maintenance and maintenance: Regular inspection and maintenance of the die can extend its service life and reduce deformation. Daily inspections include comprehensive inspections before, during, and after each shift to ensure that the die is free of cracks, deformation, and looseness. Regularly clean the surface and internal structure of the die to maintain the die in good condition.
Optimize die design and manufacturing quality: Reasonable die structure design and high-quality manufacturing processes can reduce deformation. Ensure that the die design is reasonable, the structure is strong, and it can withstand the temperature and pressure during the curing process. Choose high-quality materials to reduce the non-uniformity during the curing process.
Control the curing process: In the manufacture of fiberglass molds, precisely controlling parameters such as the mixing ratio of resin and hardener, curing temperature, and pressure distribution can significantly reduce deformation. Using high-precision temperature control equipment and uniform pressure distribution equipment can improve product quality.
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