What are the differences between sheet metal processing and automotive stamping?

2020-11-10 11:13:24

For the first time contact with sheet metal processing, the vast majority of people confuse the concept of sheet metal processing and stamping processing. In fact, there are many similarities between the two, but there are still some differences between them.

First of all, from the concept, sheet metal processing refers to the processing of metal plate, which is to use the plate to make common items in our daily life, such as chimney, iron barrel, oil tank, ventilation pipe, elbow big and small end, Tianyuan place, funnel shape, etc. automobile sheet metal parts are mainly processed and produced by cutting, bending, bending forming, welding, riveting and so on By means of the power of the conventional or special stamping equipment, the sheet metal is directly subjected to deformation force in the die and deformed, so as to obtain a certain shape, size and performance of product parts production technology.

Sheet metal, die and equipment are the three elements of stamping processing. From the above, stamping is only one of the many processes of sheet metal processing, and the relationship between them is inclusive and included. Clarifying the relationship between the two will help employees to make fewer mistakes in the later operation process, and improve the technical level of employees in operation Join the partners of sheet metal processing industry, automotive stamping parts should distinguish the difference between sheet metal processing and punch processing, so as to be more conducive to the development of future work.

Sheet metal processing, commonly used materials are cold-rolled sheet (SPCC), hot-rolled plate (SHCC), galvanized sheet (SECC, SGCC), copper (Cu), brass, red copper, beryllium copper, aluminum plate (6061, 6063, hard aluminum, etc.), aluminum profile, stainless steel (mirror, wire drawing surface, fog surface). According to the different functions of products, different materials are selected, and the use and cost of products are generally considered.

Features of automobile stamping parts

1. Cold rolled sheet SPCC is mainly used for electroplating and baking paint parts, with low cost, easy forming and material thickness ≤ 3.2mm.

2. Hot rolled plate SHCC, material t ≥ 3.0 mm, is also used for electroplating, baking paint parts, low cost, but difficult to shape, mainly using flat parts.

3. Galvanized sheet SECC, SGCC. SECC electrolytic plate is divided into n material and P material. N material is not used for surface treatment, so the cost is high. P material is used for spraying parts.

4. Copper: mainly used for conductive materials, its surface treatment is nickel plating, chromium plating, or no treatment, high cost.

5. Aluminum plate; surface chromate (j11-a), oxidation (conductive oxidation, chemical oxidation), high cost, silver plating, nickel plating.

6. Aluminum profiles; materials with complex cross-section structure are widely used in various plug boxes. On the surface