Sheet metal plate based on punch forming and processing technology thereof

Abstract

The invention discloses a sheet metal plate based on punch forming and a processing technology thereof. The sheet metal plate based on stamping forming is prepared by carrying out hot stamping formingon a raw material titanium ingot. The processing technology of the sheet metal plate based on stamping forming comprises the following steps of 1, carrying out homogenization treatment on the raw material titanium ingot; 2, preparing an extruding plate; 3, preparing a rolled plate; 4, carrying out ultrasonic detection on the rolled plate; 5, preprocessing the rolled plate; and 6, carrying out hotstamping forming on the rolled plate so as to obtain the sheet metal plate based on stamping forming. An experiment result shows that the prepared sheet metal plate based on punching forming has hightensile strength and plasticity, the tensile strength of the sheet metal sheet material can reach 2100 MPa or above, the elongation rate can reach 15% or above, the sheet metal plate can be adapted to the production of structural parts with complex shapes, the yield is improved, the problem that the hot stamping titanium alloy plate easily forms cracks can be well solved, and the crack rate is low.

Description

technical field [0001] The invention relates to the technical field of sheet metal stamping, in particular to a stamping-based sheet metal and its processing technology. Background technique [0002] Stamping forming refers to the process of applying external force to plates, strips, pipes and profiles by presses and molds to cause plastic deformation or separation, so as to obtain workpieces (stamping parts) of required shape and size. The hot stamping forming process is also known as stamping hardening. It is a new technology for the production of high-strength stamping parts that has emerged in recent years. The stamping parts made by hot stamping technology can have a strength of up to 1500MPa, and there is almost no damage to the stamping parts at high temperatures. Springback, compared with the currently commonly used cold stamping parts, has outstanding advantages such as high forming precision, good formability and light weight. [0003] Due to its low density and h...

AI Technical Summary

Problems solved by technology

However, due to the close-packed hexagonal lattice of titanium alloy, the plasticity is poor and it is difficult to form, resulting in the slow development of plastic forming technology of titanium alloy sheet, which limits its application range.

In addition, the surface and internal properties of stamping sheets have a great influence on the quality of stamping products. In the existing production mode, only the finished stamping parts are inspected after the production link is completed, and some unqualified products that have not been stamped and formed are not. After testing, the stamping and forming process is also carried out. The finished stamping parts produced cannot meet the needs of customers and cannot be used. However, the stamping materials after stamping and forming cannot be used again, resulting in waste of stamping materials. At the same time, it takes up a lot of production. time, which greatly affects work efficiency

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