Common sheet metal processing process

Common sheet metal processing is mainly composed of six major steps. The following is a detailed introduction: sheet metal processing drawing design -> laser processing or (CNC stamping) -> bending -> welding and forming -> electrostatic spraying Or (liquid paint) -> packaging and shipment. 1. Drawing design: general customers provide drawings or samples, which are measured, designed, and unfolded by the company's engineering staff to form a processing decomposition drawing and assembly drawing and submit it to the production department for processing. 2. Laser processing: With a large laser cutting machine, it can cut carbon steel, stainless steel and other materials. Using laser cutting, the section of the workpiece is neat, smooth and beautiful, and the size is accurate. For workpieces with arcs It has more advantages and is a processing method that cannot be replaced by general CNC stamping. 3. CNC punching: with imported turret CNC punching machine, CNC punching is mainly for the thinner product processing materials, generally materials below 2.5mm are more suitable, sheet metal processing workpieces have more holes or need to open special molds to process workpieces. When the batch is large, using CNC stamping has certain cost advantages. 4. Bending: After the workpiece is loaded with good materials, if most of it needs to be bent and formed, the CNC bending machine not only has a fast speed, but also a more accurate workpiece processing. 5. Welding forming: The workpiece generally needs to be assembled and formed after the material is loaded. There are many ways of assembling. Some are directly formed by non-welding processes such as screws and riveting. Generally, the sheet metal of the mechanical shell is mostly formed by welding. Automobile air-conditioning compressor company Generally, argon arc welding, butt welding, carbon dioxide welding, etc. are used. After welding, the workpiece is polished, so that the workpiece is firm and beautiful. 6. Electrostatic powder spraying: Electrostatic powder spraying is mainly for carbon steel workpieces. Generally, the process of degreasing and rust removal, surface conditioning cleaning, phosphating treatment, electrostatic powder spraying, high-temperature baking and other processes are carried out first, and the surface of the workpiece is beautiful after treatment. , Will not rust within a few years, low cost and other advantages. Liquid paint: This process is different from electrostatic spraying. Generally, it is suitable for large workpieces. It is convenient and low cost to use liquid paint when it cannot be transported. Liquid paint is generally divided into two steps. After the workpiece is processed, the primer is applied and then applied. Topcoat. 7. Packing and shipping: 100% inspection is carried out before packing, and inspection data is provided. The shipping requirements and packaging methods are confirmed on the spot by the customer’s square representative. Here is a record for the customer to reconfirm. Related news: The characteristics of the main materials of the stamping parts The common problems of the stamping parts The characteristics of the scaffolding stamping parts and the importance of inspection Advantages introduce the advantages, procedures and characteristics of stamping parts