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Material Selection for Sheet Metal Cold Stamping

03-02

Sheet metal cold stamping is a commonly used manufacturing technique in sheet metal processing, with cold stamping being a key process. From the selection of sheet materials to final inspection, every step in the fabrication of sheet metal parts is critical. Let’s now examine material selection for sheet metal cold stamping.

The selection of sheet metal for cold stamping shall strictly comply with the requirements of LPQ-B1, LPQ-B3, LPQB-00, or LPQ-B5, or with the drawing specifications. Individual minor scratches, dents, depressions, and cleaning marks are permissible on the sheet, provided that their depth does not exceed half of the sheet thickness tolerance band. This also depends on the quality of the surrounding area of the part. All cutting edges shall be flush, with no sharp corners, burrs, or cracks; edges and corners shall be smooth.

Suzhou Sheet Metal Fabrication Factory

If the GB/505 standard deviation is unavailable, the f-505 standard deviation shall be used for inspection. If the GB/505 standard deviation is unavailable, the f-505 standard deviation shall be used for verification. If the GB/505 standard deviation is unavailable, the f-505 standard deviation shall be used for verification. This standard does not apply when the stamped parts are both stamped parts and cold-extruded parts. GB 1804-m shall be selected for inspection.

Sheet metal part inspection standards: Inspect features such as ventilation holes, pressure relief holes, and stiffening ribs. Verify stamping quality; no burrs, sticking, or material drop-off are permitted. If any defects are found, the die must be adjusted or repaired.

Defects that are not permitted in bent parts include cracking at the bend angle, obvious surface dents on the bent part, significant height variation at the end face of the bent part, and uneven appearance. For cold-stamped parts produced using dies, once the process and quality of the first batch of machined parts have stabilized, individual inspection of subsequent parts is no longer required. If defects are detected during visual inspection or sampling inspection, the root cause must be identified. Mass production may commence only after the parts have passed re-inspection and the process quality has remained stable. For stamped parts produced without forming dies, particularly for components with high material costs and high pre-processing costs, the quality of small batches should be inspected on a per-batch basis; for large-volume production, attribute sampling inspection may be employed.

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Material Selection for Sheet Metal Cold Stamping

Material Selection for Sheet Metal Cold Stamping

Sheet metal cold stamping is a commonly used manufacturing technique in sheet metal processing, with cold stamping being a key process. From the selection of sheet materials to final inspection, every step in the fabrication of sheet metal parts is critical. Let’s now examine material selection for sheet metal cold stamping.

Mar 02,2024

Ensure the quality of sheet metal parts

Ensure the quality of sheet metal parts

In the manufacturing process of precision sheet-metal enclosures, the quality of the sheet metal is of paramount importance, as numerous factors can influence product quality. Therefore, to ensure product quality, it is essential to pay close attention to many details in the fabrication of sheet-metal housings:

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Several Joining Methods in Customized Small- and Medium-Scale Sheet Metal Fabrication

Several Joining Methods in Customized Small- and Medium-Scale Sheet Metal Fabrication

With the continuous upgrading and advancement of production equipment, the vast majority of forming processes are now carried out on automated machinery. Manual methods are typically employed for complementary operations such as finishing and precision machining. However, in single-piece production or when dealing with parts of complex geometries, manual operations and machining remain indispensable. When manual forming of sheet-metal components is performed using simple tire-forming tools, contour-following fixtures, and zero-point clamping systems, the following techniques should be utilized: bending, edge standing, edge sealing, edge drawing, arch bending, hemming, and weld correction, among others.

Mar 02,2024