60% -70% of metal parts in automobile manufacturing require plastic forming, and stamping is an important technique that is one of the most basic, traditional, and important metal processing techniques. In medium and heavy-duty vehicles, most of the covering parts such as body panels, as well as some load-bearing and supporting parts such as frames and carriages, are automotive hardware stamping parts. Its characteristics are light weight, good rigidity, and after plastic deformation of the sheet metal, the internal structure of the metal is improved, which enhances the strength of the stamped parts.

The technology of automotive Metal Stamping parts is developing towards precision, multifunctionality, high efficiency, energy saving, safety and cleanliness. The level and quality of stamping parts production technology have a direct impact on the quality and cost of automotive manufacturing to a large extent. So, to ensure quality, we must master the inspection methods for automotive stamping parts.

1. Touch inspection: Use clean gauze to wipe the surface of the outer cover clean. The inspector needs to wear touch gloves and touch the surface of the metal stamping part along the longitudinal direction of the stamping part. This inspection method depends on the inspector's experience.

2. Oil inspection: Use a clean brush to evenly apply oil in the same direction to the entire outer surface of the metal stamping parts. Place the stamped parts that have been coated with oil under strong light for inspection. This method can easily detect small bumps, dents, and ripples on the stamped parts. 3. Polishing of flexible mesh: Use a flexible mesh to closely adhere to the surface of the metal stamping part and polish it longitudinally to the entire surface. Any pockmarks or indentations will be easily detected.

4. Oil stone polishing: First, use clean gauze to wipe the surface of the outer cover clean, then use oil stone polishing. For areas with arcs and difficult to reach areas, use relatively small oil stones for polishing. Some special areas can also be supplemented with horizontal polishing.

5. Visual inspection: Visual inspection is primarily used to discover abnormal appearance and macroscopic defects of stamped parts.

Today, the market competition for automotive hardware stamping parts has entered its peak period. Many manufacturers have focused their energy on price wars in order to win customers, and even cut production costs without any bottom line in order to win the price war. This marketing strategy will inevitably be eliminated by society, and even if it is achieved temporarily, it will not go far and may even bring unnecessary economic and reputational losses to future cooperation. Ensuring quality is the foundation for the sustainable development of stamping parts processing plants.

This article is from EMAR Mold Co., Ltd. For more EMAR related information, please click on www.sjt-ic.com,