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Causes of scuffing on stamped and bent parts
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Scuffing of bent parts is a common quality problem in the stamping process. Scuffing not only affects the appearance quality of the product, but also may lead to a decline in the performance of the product, and even cause safety accidents. Therefore, it is important to understand the causes of scuffing of bent parts, and take effective measures to prevent and control it, in order to improve the quality of stamping processing.
What are the reasons for bruising of bent parts in stamping processing?
1. Defects on the surface of moulds: There are cracks, bubbles, rust and other defects on the surface of moulds, which are easy to come into contact with the material surface during stamping processing and lead to abrasion. Therefore, regular inspection and maintenance of the mould to ensure that the surface finish and integrity of the mould is the key to preventing abrasion of bent parts.
2. Contaminants on the surface of the material: Oxide skin, oil, sand and other impurities on the surface of the material are the main causes of scuffing. Before the stamping process, the material should be strictly cleaned and decontaminated to reduce the impact of impurities on the process.
3. Improper stamping process parameters: the choice of stamping process parameters have a great impact on the production of bending parts abrasion. Need to reasonably select the stamping process parameters, to avoid scuffing problems caused by improper process parameters.
4. Improper operation: in the stamping process, the operator's technical level and operating habits will also affect the production of bent parts abrasion. Therefore, to strengthen the operator's training and management, improve the level of operation, is also an important measure to prevent scratches on bent parts.
In order to effectively prevent and control the abrasion of bent parts, the following measures can be taken:
1. Regular inspection and maintenance of moulds: find and promptly deal with cracks, bubbles, rust and other defects on the surface of the mould to ensure the surface finish and integrity of the mould.
2. strict material cleaning and decontamination: before stamping process, the material should be strictly cleaned and decontaminated to remove impurities such as oxidised skin, oil, sand and so on, to reduce the impact of impurities on the process.
3. Reasonable selection of stamping process parameters: According to the material, shape, size and other characteristics of the bent parts, the stamping process parameters should be selected reasonably, so as to avoid the problem of abrasion caused by improper process parameters.
4. Strengthen the training and management of operators: improve the level of operation to ensure that operators can properly use lubricants in the stamping process, timely cleaning of impurities on the surface of the mould and so on.
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