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What should be paid attention to in the design of progressive die for precision automotive stamping parts?

In the preparation stage of automobile stamping parts, after weighing the plastic powder, it is first poured into the feeding chamber and heated to a plastic state. In the pressing stage, when the pressing column moves down on the working table of the hydraulic press, it enters the feeding chamber to pressurize the molten plastic, injects it into the mold cavity at a high speed through the pouring system of the mold, and guarantees heat preservation for a certain period of time to harden and form.

In the unloading stage, after the mold is opened, the plastic parts are ejected by the special unloading mechanism, and the mold cavity, the feeding chamber and the runner are cleaned, and the next stroke is ready for extrusion.

Design points of progressive die for precision stamping parts:

1. Die fillet radius of progressive die for precision stamping parts

The fillet radius of the concave die of the progressive die for precision stamping parts should be consistent in all directions. Otherwise, when bending, the blank will slide and the product will be offset, which will affect the accuracy and size, and when designing the progressive die, the radius of the bending fillet should be selected appropriately, and should not be too large or too small. The size of the corner radius to cause local deformation or thinning of the product, affecting the quality and surface roughness of the product.

2. To prevent blank deflection during bending

When designing a die for precision stamping parts, in order to prevent the offset of the blank during the bending process, the following preventive measures should be taken: the die should be equipped with an elastic pressing device, and it should be noted that part of the leather should be in a state of elastic compression before bending. Bend.

Automotive Sheet Metal Fabrication

Pintejin Sheet Metal shop offers a cost-effective solution for a wide range of industries with our custom metal stamping and custom sheet metal fabrication capabilities. Our stampnig operations include a variety of sheet-metal forming manufacturing processes, such as punching, blanking, embossing, bending, flanging, and coining. Our professional, experienced and well-trained engineers can execute the complex metal stamping operations with precision and accuracy.

No matter what your metal fabrication needs are, Pintejin can offer the right solution: from single sheet metal part or sub-assembly of stamped metal parts to turnkey solutions for mechanical and electrical assemblies. We have the technology, equipment and the experience to fabricate customised metal products from aluminium sheet metal fabrication, steel, zinc plated steel, stainless steel sheet metal fabrication, brass and copper. Designs that require CNC machining of surfaces or components can be accommodated. We can supply polished, galvanized, zinc coated or powder coated finishes for any sheet metal work or stamped metal components. Coupled with our accurate and reliable metal fabricating equipment, we guarantee precision and repeatability in custom sheet metal work. You’ll be taking advantage of the best sheet metal fabrication china can produce.


With Pintejin automated and highly streamlined sheet metal fabrication service, you can expect a sheet metal fabrication quote within 12 hours and lead times as quickly as three days.Our rapid prototyping offering also includes a solid and reliable manufacturing capability (led by our expert team with 15+ years of experience) and technical and quality assurance, including SGS and RoHS material certifications, in-process quality reports, and First Article Inspection.



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