Formula of Alloy Copper Used in High Strength Steel Stamping Hot Forming Dies and Inserts

Abstract

The invention relates to a stamping hot forming die and materials for making inserts of the die, in particular to a high-strength steel sheet stamping hot forming die. The high-strength steel sheet stamping hot forming die comprises a female die matched with a male die, a blank holder arranged on the top of an ejector rod, a cooling water pipeline used for supplying water for quenching and cooling, an electrical heating element and a sensor, wherein the three inserts, namely, the insert I, the insert II and the insert III, are inlaid in the female die in a triangular distribution mode, the insert I is located above the insert II and the insert III, the insert II and the insert III are made of the copper alloy, and the insert I is made of copper alloy or die steel. Due to the adoption of the structure, the high-strength steel sheet stamping hot forming die has the advantages that the abrasive resistance of the die is improved, the service life of the die is prolonged, die cooling time is shortened, use cost is reduced and part forming precision is improved.

Description

technical field [0001] The invention relates to materials used for stamping thermoforming molds and mold inserts, in particular to a stamping thermoforming of high-strength steel plates that improves the wear resistance of the mold, improves the service life of the mold, shortens the cooling time of the mold, reduces the use cost and improves the forming accuracy of parts Formulations of copper alloys for molds and their inserts. Background technique [0002] Hot forming technology is a new technology specially used to form high-strength steel stamping parts in the automobile industry in recent years. Stamping parts with a forming strength of up to 1500MPa are widely used in the production of security parts such as door anti-collision beams, front and rear bumpers, and car body structural parts such as A-pillars, B-pillars, C-pillars, and middle tunnels. Due to the dual advantages of reducing quality and improving safety, this technology is currently developing rapidly in i...

AI Technical Summary

Problems solved by technology

During the use of this type of mold, due to the structure of the mold itself and the materials used, the quality of the stamping parts fluctuates, and problems such as mold wear, cracking, and scrapping will also occur.

Practice has shown that for deep-drawn parts with complex shapes, the mold needs to be cleaned and polished every few hundred pieces produced, which is time-consuming and laborious, and seriously restricts production efficiency

[0009] In summary, the materials used in the stamping thermoforming dies and their inserts in the prior art result in low wear resistance of the dies, short die life, long die cooling time, high cost of use and low forming accuracy of the parts.

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