How to inspect the quality of metal stamping parts
With the development of science and technology and the changes of the times, precision stamping parts have slowly penetrated into people's lives, and product parts from precision stamping parts can be seen everywhere in life. Stamping is one of the most commonly used processing methods in metal stamping processing manufacturers. Precision stamping parts refer to molds for plates such as steel or non-ferrous metals at room temperature, which are formed into specified shapes by the pressure required for processing by a press. So how do hardware stamping manufacturers check the quality of precision stamping parts? The following editor will give you a brief introduction.
Regarding metal stamping processing, we first need to inspect the quality of raw materials. The inspection period can be divided into material inspection and material cleaning before, inspection before production and after material. Next, the precision stamping parts can be inspected by the following five inspection methods.
1. Contact detection:
Wipe the surface of the outer cover with clean gauze. The inspector needs to wear contact gloves to make contact with the surface of the stamping part along the longitudinal direction of the precision stamping part. This inspection method depends on the experience of the inspector of the stamping manufacturer. When necessary, oilstone can be used to polish the detected suspicious area and verify it, but this method can be regarded as an effective quick inspection method.
2. Whetstone polishing:
Firstly use clean gauze to clean the surface of the outer cover, and then use oilstone for polishing, and use relatively small oilstone for arcuate and hard-to-reach places. The choice of whetstone particle size depends on the appearance. Advocate the use of fine-grained oilstone. The direction of whetstone grinding is basically along the longitudinal direction, and it fits well with the appearance of precision stamping parts, and some special places can also supplement horizontal grinding.
3. Polishing of flexible gauze:
Wipe the surface of the outer cover with clean gauze. Use a flexible sand net to close the surface of the precision stamping part and polish it to the entire surface in the longitudinal direction. Any pitting or indentation will be easily found.
4. Oiling inspection:
Wipe the surface of the outer cover with clean gauze. Then use a clean brush to apply oil evenly to the entire surface of the precision stamping in the same direction. Put the oil-painted stamping parts under strong light for inspection. It is advisable to put the stamping parts upright on the car body. With this method, it is easy to find small pits, pits, and ripples on the stamped parts.
5. Visual inspection:
Visual inspection is mainly used to find abnormal appearance and microscopic defects of precision stamping parts.
Zhongshan Yingyun Hardware is a professional manufacturer of hardware stamping parts. The quality of the precision stamping parts produced is guaranteed. Now you can see our basic information when you enter the company's website. If necessary, please contact us and look forward to your news.
