What are the inspection methods for producing automobile stamping parts?

2020-02-20 14:56:33

The inspection method of automobile stamping parts is an important method to ensure the quality of finished products and high qualified rate. For the operators of stamping parts production enterprises, they generally need to master how to conduct inspection. Next, Rongzhi automobile stamping parts mainly collated six inspection methods, which can be divided into three categories through careful analysis: sensory inspection, grinding inspection and tool inspection.

Sensory inspection includes visual inspection and touch inspection, grinding inspection includes oilstone grinding and flexible yarn mesh grinding, and tool inspection includes oil coating inspection and inspection tool inspection.

1. Visual inspection: it is mainly used to find the abnormal appearance and macro defects of stamping parts.

2. Touch inspection: wipe the surface of the outer covering with clean gauze. The inspector needs to wear touch gloves to touch the surface of the stamping along the longitudinal direction of the stamping part. This inspection method depends on the experience of the inspector. If necessary, the suspected area can be polished with oilstone and verified, but this method is an effective and rapid test method.

3. Oilstone grinding:

(1) Firstly, clean the surface of the outer covering with clean gauze, then polish with oilstone (20 × 20 × 100mm or larger), and polish with relatively small oilstone (for example, 8 × 100mm semicircle oilstone) where there is arc and hard to contact

(2) The size of oilstone depends on the surface condition (such as roughness, galvanizing, etc.). It is recommended to use fine-grained oilstone. The polishing direction of the oilstone is basically along the longitudinal direction, and it fits the surface of the stamping part well. Some special places can also be supplemented with the horizontal grinding.

4. Flexible gauze grinding: clean the surface of the outer covering with clean gauze. The surface of stamping parts shall be grinded longitudinally to the whole surface with flexible sand mesh, and any pitting and indentation can be easily found.

5. Oiling inspection: wipe the surface of the outer covering with clean gauze. Then apply oil evenly along the same direction with a clean brush to the whole outer surface of the stamping part. Put the oiled stamping parts under strong light for inspection. It is recommended to erect the stamping parts on the body position. With this method, it is easy to find the tiny pits, hollows and corrugations on stamping parts.

6. Inspection tool: put the stamping parts into the inspection tool, and inspect the stamping parts according to the operation requirements of the inspection tool instructions.

Strictly control the quality, we will produce more competitive stamping products, with low cost to create a good product is the goal of every enterprise. When we can not control the price of raw materials, we can only choose to operate and test in the production process to reduce the number of inferior products.