Gap Design of Convex and Concave Die for Metal Stamping Parts

2021-09-20 by No Comments

Gap Design of Convex and Concave Die for Metal Stamping Parts

Compared with castings and forgings, Changzhou stamping parts have the characteristics of thinness, uniformity, lightness and strength. Stamping can produce workpieces with reinforcing ribs, ribs, undulations or flanges that are difficult to produce by other techniques to improve their rigidity. Due to the tight mold, the precision of the workpiece can reach the micron level, and the repeatability is high, the specifications are consistent, and holes, bosses, etc. can be punched out.

Cold stamping parts generally no longer undergo cutting processing, or only a small batch of cutting processing is required. The precision and surface condition of hot stamping parts are lower than cold stamping parts, but still better than castings and forgings, and the cutting amount is less.

Stamping is a production technique that uses composite molds and Changzhou metal stamping parts processing, especially multi-station progressive molds, which can realize multiple stamping processes on one press, from strip uncoiling, leveling, punching to forming , Finished automatic production. Production, electronic hardware stamping parts processing, good labor conditions, low production cost, usually hundreds of pieces per minute.

The key to stamping is classified by process, which can be divided into two categories: separation process and forming process. The separation process is also called blanking, and its goal is to make the stamping part along a certain surface line from the sheet material, while separating the quality requirements of the section.

The difference between stamping parts and casting parts: With the characteristics of thinness, uniformity, lightness, and strength, stamping can produce workpieces with reinforcing ribs, ribs, undulations or flanges that are difficult to produce by other techniques to improve their rigidity.

Due to the use of tight molds and metal stamping parts processing, the accuracy of the workpiece can reach micron level, and the repeatability is high, the specifications are consistent, and holes, bosses, etc. can be punched out.

Cold stamping parts generally no longer undergo cutting processing, or only a small batch of cutting processing is required. The precision and surface condition of hot stamping parts are lower than cold stamping parts, but still better than castings and forgings, and the cutting amount is less.

The hardness test of metal stamping parts adopts Rockwell hardness tester. Small, complex style stamping parts, strict metal stamping parts processing, can be used to test the surface is very small, can not be tested on the ordinary desktop Rockwell hardness tester.

Due to the gap between the male and female molds, the falling material or punched holes are tapered, and the large end size of the blanking part is the size of the die, and the small end size of the punching part is the size of the punch.

Processing and testing skills of metal stamping parts

Wipe clean the surface of the outer cage cover with clean gauze. Use a flexible sand net to close the surface of the stamping part and grind it to the entire surface in the longitudinal direction. Any pitting or indentation will be easily found.

Wipe clean the surface of the outer cage cover with clean gauze. Then use a clean brush to apply oil evenly to the entire surface of the stamping part in the same direction. Put the oiled stamping parts under strong light for inspection. It is recommended that the stamping parts be erected on the body. With this method, it is very easy to find small pits, pits, and ripples on the stamping parts.

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