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What is the measurement method of automobile metal stamping parts?

Metal stamping parts are widely used in various fields of our life, including some electronic devices, auto parts, decorative materials, etc. We usually say stamping parts generally refer to cold stamping parts.

The measurement method of hardware automobile stamping parts: the hole measurement of metal stamping parts is based on the measurement method of the pass and stop gauge, and the small value is generally recorded when the caliper is used to measure the record (to exclude too small value, such as measurement error The resulting error), (does not rule out special circumstances) recording the maximum value and the average value has no practical significance, for the size difference of the measurement of the aperture in all directions, it should be recorded in the circularity of the shape and position tolerance, not the aperture.

In addition, if it is surveying and mapping, and there is no size for reference, it should be determined according to the condition of the section, and the average value cannot be taken alone. For example, the small value measured may be caused by the wear of the punch somewhere. The bright band is extremely small, so this small value is meaningless.

Generally speaking, the wear of the punch leads to the reduction of the punching hole (the special-shaped hole needs to be analyzed in detail), so the larger value can be taken during the surveying and mapping, and the quality of the section should not be forgotten, because the basic size of the hole diameter is taken when the punch is manufactured. + The maximum value within the allowable deviation is multiplied by 0.5~0.75 to leave the wear amount. After a period of use, the punching becomes smaller, but as long as the quality of the section is acceptable, the value is still within the tolerance range. At this time, the larger value is Correct (similarly, factors such as deformation of the plate thickness in the direction of the plate thickness, such as hole warping, etc., should be excluded, especially for thin plates).

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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