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How to deal with the problem of surface roughening of automobile stamping parts?

In the production process of stamping parts, the surface roughness of parts is a common quality defect. This problem is common in various manufacturers. This problem affects the stability and efficiency of the product, and also causes more serious wear of the mold, which may lead to Parts are scrapped in batches, the life of the mold is shortened and the accuracy of the parts is affected. At the same time, more energy is invested in manpower to repair the mold and manage the cost, so don’t look at a small problem, the chain problem caused by it is really not small, then how should we usually deal with it? ?

How is the surface roughening of automobile stamping parts produced? In essence, it is due to the local adhesion between the mold and the parts. There are many ways to improve this problem, but the basic principle is to improve the properties between the mold and the parts, so that the two do not adhere. Click to get started:

  • 1. Select the appropriate mold material: the mold material generally chooses high-quality materials such as Cr12MoV, SKD11, and the hardness after heat treatment can reach between 58-62;
  • 2. Prepare the mold blanks before making the molds: ensure the smoothness of the mold blanks, because if there are pores and impurities in the mold blanks, the parts will also be rough, and the mold blanks are ground to ensure the smoothness. Maintenance can ensure the accuracy and life of the mold;
  • 3. Rational use of lubricating oil: In the production process, the rational use of lubricating oil can effectively reduce the dryness of the friction between the mold and the parts, and reduce the hair pulling; generally, manual oiling or automatic oiling is used. At the same time, it can also effectively Reduce parts cracking and other problems; the disadvantage is that the use of lubricating oil will cause oil pollution on the work surface or the ground, and it needs to be cleaned after use;
  • 4. Surface treatment of the mold: Here, the surface treatment of the mold is to plate the surface of the mold with hard chrome. The surface of hard chrome plating can ensure smooth and clean, and the hardness can reach about HV1000, which can effectively reduce the phenomenon of pulling parts, but after a strong pressure impact After or when parts fall off, it is not conducive to production;




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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