As the most common mode of transportation in the 21st century, cars are greatly changing people's travel, and the concept of car coverings has also entered the hearts of the public.

Automobile coverings refer to metal sheets composed of metal and composite materials that cover the surface of the engine, chassis, cab and body. According to functions and parts, they can be divided into three categories: external covering parts, internal covering parts, and skeleton covering parts.

Automobile panel parts have different characteristics from general stamping parts in terms of process design, mold processing, equipment selection and quality control.

l Metal: Metal is one of the main materials for automobile panels. Common metal materials include steel plates and aluminum plates. Steel plates are usually made through a cold stamping process, while aluminum plates are made through a cold rolling process. The metal covering has sufficient strength and rigidity to effectively protect the paint on the hood surface and prevent aging.

l Composites: On higher-end cars, especially high-performance sports cars, a common hood material is composite, such as carbon fiber. Composite materials are lightweight, high-strength and heat-resistant, making them suitable for use in coverings for high-performance sports cars.

In addition to the above materials, automobile cover materials also include sound-absorbing cotton, engineering plastics, etc.

The stamping process in CNC machining is the most important link in the entire automotive panel processing process, and its quality directly affects the quality and service life of the product. The basic processes of stamping and forming automobile panel parts include blanking, pre-bending, drawing, trimming, punching, flanging, shaping and other processes. During this process, attention should be paid to the selection of punches, the design and optimization of shearing dies, and forming dies to ensure production efficiency and processing quality.

Mold is one of the keys to stamping processing, and its design and manufacturing have a great impact on processing accuracy and cost. In the stamping processing of cover parts, special attention should be paid to the design and manufacturing of the mold to ensure that it is compatible with the material and reasonable with the process production requirements, so as to improve the yield and reduce the manufacturing cost.

l Surface Treatment

After the stamping process of the cover is completed, surface treatment is required, that is, smoothing, polishing, spraying, etc. Surface treatment can not only be beautiful and enhance the decorative performance of the product, but also improve the wear resistance, anti-corrosion and corrosion resistance of the product, ensuring the stability of product quality and long-term service life.

To sum up, the stamping processing of cover parts is a relatively complex process, involving materials, stamping processes, mold design and surface treatment. In order to obtain high-quality automotive panels in this process, detailed planning and implementation of each link is required to improve processing efficiency and product quality, while also laying a solid foundation to better meet market demand.

Shenzhen Yixin Chuangyan Technology Co., Ltd. has been actively engaged in the field of CNC machining of auto parts for many years and is committed to providing customers with customized high-precision CNC auto parts machining services.