What are the methods for checking the stamping parts of the car?

Test methods of automobile stamping is an important method to ensure product quality and high yield, for stamping parts production enterprise operators, usually have to learn how to detect the Rong auto stamping parts mainly caused by finishing the 6 test methods, careful analysis can be divided into three categories: sensory inspection, grinding test and test tools.

Sensory examination is divided into visual inspection and touch test. Grinding test is divided into oil stone grinding and flexible gauze grinding. Tool inspection is divided into oiling test and inspection tool inspection.

Visual inspection: it is mainly used to find out the appearance and macroscopic defects of the stamping parts.

Touch test: clean the surface of the outer cover with clean gauze. The inspector needs to wear a touch glove along the stamping parts to touch the surface of the stamping parts longitudinally. This inspection method depends on the experience of the inspector. If necessary, oil stone can be used to grind the suspected areas and be verified, but this method is an effective and fast test method.

Oil stone grinding:

First, clean the surface of the outer covering with clean gauze, then polish it with oil stone (20 * 20 * 100mm or larger), arc and hard to contact area, and use relatively small oil stone (for example, 8 * 100mm semicircle stone).

The selection of the size of the oil stone depends on the surface conditions (such as roughness, galvanizing, etc.). It is suggested that the fine-grained oil stone be used. The direction of oil stone grinding is basically along the longitudinal direction, and is well fitted to the surface of the stamping parts, and some special places can also complement the transverse grinding.

Flexible gauze grinding: clean the surface of the outer cover with clean gauze. Close to the stamping surface along the longitudinal grinding to the entire surface with a flexible screen, no pitting, indentation can be easily found.

Oil test: clean the surface of the outer cover with clean gauze. Use a clean brush to evenly oil the whole outer surface of the stamping part along the same direction. The stamping parts coated with oil are tested under strong light. It is suggested that the stamping parts be erected on the body position. This method can easily find stamping on the tiny pits, dent, corrugated.

Inspection tool: the stamping parts are put into the inspection tool, and the stamping parts are tested according to the requirements of the inspection instructions.

To strictly control the quality, we will produce the stamping products more competitive in the market, create the best products but also the goal that each enterprise pursues with the lowest cost, when we can not control the price of raw materials, we can only choose to do careful operation and detection in the production process, reduce the number of poor quality products the.