Stamping is a forming and processing method that relies on a press and mold to apply external force to sheets, strips, pipes, and profiles, causing them to undergo plastic deformation or separation, thereby obtaining the desired shape and size of the workpiece. It includes processes such as punching, bending, deep drawing, forming, and precision machining. Stamping technology, molds, stamping equipment, and stamping materials constitute the three elements of stamping processing, and only by combining them can stamped parts be obtained. Precision metal stamping parts can be divided into various types according to industry, purpose, and process characteristics.

1、 What are the common precision metal stamping parts

1. Automotive components: mainly including automotive structural components, automotive functional components, automotive lathe components, automotive relays, etc.

2. Electronic components: mainly including connecting devices, connectors, brush components, electrical terminals, elastic components, etc.

3. Home appliance parts: mainly including color tube electronic gun parts and other major home appliance parts, small home appliance parts, various structural and functional parts, etc.

4. IC integrated circuit lead frame: mainly includes discrete device lead frame and integrated circuit lead frame, etc.

5. Motor magnetic cores: mainly including single-phase series motor magnetic cores, single-phase household motor magnetic cores, single-phase shielded pole motor magnetic cores, permanent magnet DC motor magnetic cores, industrial motor magnetic cores, plastic sealed stator magnetic cores, etc.

6. Electrician iron core: mainly including E-type transformer iron core, EI type transformer iron core, I-shaped transformer iron core and other transformer iron cores.

7. Heat exchange fins: mainly including industrial heat exchange fins, household heat exchange fins, and automotive heat exchange fins.

8. Other components: mainly including instrumentation components, IT components, audio and camera components, modern office components, and daily hardware components.

2、 The advantages of precision stamping processing

1. Stamping technology has high production efficiency, easy operation, and is easy to achieve mechanization and automation. This is because stamping is completed through stamping molds and stamping equipment. The stroke frequency of a regular press can reach dozens of times per minute, while a high-speed press can reach hundreds or even thousands of times per minute. You may receive a stamped section.

2. During stamping, the mold ensures the dimensional and shape accuracy of the stamped parts, which generally does not damage the surface quality of the stamped parts. In addition, the mold has a long service life, stable stamping quality, good interchangeability, and the characteristic of "same pattern".

3. Stamping can process parts with a wide range of sizes and more complex shapes, such as small stopwatches for clocks, large car longitudinal beams, cover parts, etc. Combined with the cold deformation and hardening effects of the material during the processing. Stamped parts have high strength and stiffness.

4. Stamping generally does not produce chips and debris, consumes less materials, and does not require other heating equipment, making it a material saving and energy-saving processing method with lower costs for stamped parts.

3、 Common problems in precision stamping processing

Common problems in metal stamping processing include: deformation and burrs of fine stamped parts; Cracks, warping, scratches on the surface, deformation of bent corners, etc; Flange wrinkling, deep drawing wall wrinkling, deep drawing wall damage, tearing, etc. of drawn parts; Flanging cracks and uneven protrusions.

The solution to common problems: Mold design should have reasonable clearance values between convex and concave molds, corner radii, and machining accuracy. When designing bending molds, effective measures should be taken to reduce springback and subtract the amount of springback from the mold; Reasonable rounded corners should be designed to prevent bending and cracking. When drawing, use a curler to prevent wrinkling and apply moderate pressure; Use appropriate lubrication to reduce pulling resistance, prevent sticking to the mold or pulling through the workpiece; Use professional stamping oil that meets the process requirements.