Knowledge

The principle of material selection for automotive stamping parts

​When selecting materials, first select metal materials with different mechanical properties according to the type of automobile stamping and use characteristics

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Matters needing attention in the production of stamping parts

Semi-automatic and manual punching machines must be equipped with two-hand brake switches, and it is strictly forbidden to press with pedal or one-hand start switch.

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Handling of common problems in the production of stamping parts

When the punching edge is worn, the tensile stress on the material increases, and the tendency of the stamping parts to turn over and twist increases.

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Method of restraining stamping parts from turning over and twisting

Reasonable mold design. In the progressive die, the arrangement of the blanking sequence may affect the forming accuracy of the stamping parts.

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Causes of turning and distortion of stamping parts when stamping

​In the progressive die, the outer shape of the punched part is formed by punching the leftover material around the punching part.

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Inspection method of stamping parts

Wipe the surface of the outer cover with clean gauze. The inspector needs to wear touch gloves to touch the surface of the stamping part along the longitudinal direction of the stamping part.

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Characteristics and application of stamping parts

Sheet materials, molds and equipment are the three elements of stamping processing. Stamping is a method of metal cold deformation processing.

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