Some customers will have such doubts that stamping is the forming method of pressing and die to apply external force to plates, strips, pipes and profiles, etc. to cause plastic deformation or separation, so as to obtain workpieces of the required shape and size. Including blanking, bending, deep drawing, forming, finishing and other processes. The stamping process, the die, the stamping equipment and the stamping material constitute the three elements of the stamping process. Only when they are combined with each other can the stamping part be obtained. With the development of the hardware industry, the production equipment and technology of metal stamping parts are constantly improving, and metal stamping parts are becoming more and more precise. Precision metal stamping parts can be divided into various types according to industry, use and process characteristics. Next, I will share with you some common problems in processing precision metal stamping parts!
1. What are the common precision metal stamping parts
1. Automobile parts: mainly including automobile structural parts, automobile functional parts, automobile lathe parts, automobile relays, etc.
2. Electronic parts: mainly including connecting devices, connectors, brushes, electrical terminals, elastic parts, etc.
3. Home appliance parts: mainly including home appliance parts, such as color tube electron gun parts, small home appliance parts, various structural parts and functional parts, etc.
4. IC integrated circuit lead frame: mainly includes discrete device lead frames and integrated circuit lead frames.
5. Motor core: mainly includes single-phase series motor core, single-phase household motor core, single-phase shaded pole motor core, permanent magnet DC motor core, industrial motor core, plastic stator core, etc.
6. Electric iron core: mainly includes E-shaped transformer iron core, EI-shaped transformer iron core, I-shaped transformer iron core, and other transformer iron chips, etc.
7. Heat exchanger fins: mainly including industrial heat exchanger fins, household heat exchanger fins, automobile heat exchanger fins, etc.
8. Other parts: mainly including instrument parts, IT parts, acoustic and camera parts, modern office parts, and daily hardware parts.
Second, the advantages of precision stamping
1. The production efficiency of stamping processing is high, and the operation is convenient, and it is easy to realize mechanization and automation. This is because stamping depends on the die and stamping equipment to complete the processing. The stroke number of ordinary presses can reach dozens of times per minute, and the high-speed pressure can reach hundreds or even thousands of times per minute, and each stamping stroke May get a punching piece. Hongao Precision has been involved in machining for more than ten years, has a high-quality processing team, and a supplier of high-quality machinery industry, adding WeChat to map quotation.
What are the common problems in processing precision metal stampings?
2. Since the die ensures the size and shape accuracy of the stamping part during stamping, and generally does not damage the surface quality of the stamping part, and the life of the die is generally longer, the stamping quality is stable and the interchangeability is good. feature.
3. Stamping can process parts with a large size and a complex shape, such as a stopwatch as small as a watch, as large as a car longitudinal beam, a cover, etc., plus the cold deformation hardening effect of the material during stamping, the strength and rigidity of stamping Are higher.
4. Stamping generally does not generate chips and debris, consumes less material, and does not require other heating equipment, so it is a material-saving, energy-saving processing method, and the cost of stamping parts is low.
Three, common problems in precision stamping processing
Common problems in metal stamping processing include: deformation, burrs, etc. of precision stamping parts; cracks, warpage, surface scratches, and corner deformation of curved parts; flange wrinkles of deep-drawn parts, wrinkles of deep-drawn walls, deep-drawn Wall damage, pulling cracks, etc.; flanging cracks, uneven bulging, etc.
Solutions to common problems: The mold design should have a reasonable gap between convex and concave molds, fillet radius and processing accuracy. When designing the bending die, effective measures should be taken to reduce the springback and the amount of springback should be subtracted from the mold; the reasonable rounded corners should be designed to prevent bending cracks. When drawing, use a blank holder to prevent wrinkling, and the pressure should be moderate; use appropriate lubrication to reduce the drawing resistance to prevent the mold from sticking or pulling the workpiece; use professional stamping oil that meets the process requirements.
