How to check the quality of metal stamping parts processing
Stamping is one of the most internal processing methods used in hardware processing. Hardware stamping refers to a mold for steel or non-ferrous metal plates under the premise of room temperature. The pressure required for processing is supplied by a press to form a specified pattern. How does Lamo metal stamping manufacturers test the quality of metal stamping parts? Let me share with you below.
Regarding metal stamping processing, first of all, we must control the quality of the raw materials. The inspection time can be divided into the inspection and inspection of the materials before the washing of the materials, the inspection before the production and after the materials. Next, the forming stamping parts can be inspected through the following five inspection techniques.
1. Touch detection
Wipe clean the surface of the outer cage cover with clean gauze. The inspector needs to wear touch gloves to touch the surface of the stamping part along the longitudinal direction of the stamping part. This inspection skill depends on the inspector’s experience. If necessary, oilstone can be used to polish the detected suspicious area and verify it, but this technique can be regarded as an effective rapid detection technique.
2. Whetstone polishing
1. First, wipe the surface of the outer cage cover with clean gauze, and then use oil stone for polishing, and use smaller oil stone for arc-shaped and hard-to-reach places.
2. The selection of the whetstone particle size depends on the surface condition. It is recommended to use fine-grained oilstone. The direction of whetstone polishing is basically along the longitudinal direction, and it fits the surface of the stamping parts very well, and the lateral polishing can also be supplemented in a one-sided area.
3. Polishing of flexible gauze
Wipe clean the surface of the outer cage cover with clean gauze. Use a flexible sand net to close the surface of the stamping part and grind it to the entire surface in the longitudinal direction. Any pitting or indentation will be easily found.
Wipe clean the surface of the outer cage cover with clean gauze. Then use a clean brush to apply oil evenly to the entire surface of the stamping part in the same direction. Put the oiled stamping parts under strong light for inspection. It is recommended that the stamping parts be erected on the body. With this method, it is very easy to find small pits, pits, and ripples on the stamping parts.
Visual inspection is mainly used to find abnormal appearance and macro defects of stamping parts.
The above is the sharing of how to test the quality of the metal stamping parts supplied by the metal stamping factory. After inquiring about these testing methods, if you can operate them proficiently, you will be very good at detecting the quality of the product. I feel a headache for inferior products that are neglected to manage and flow into the market.
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