Since the induction heating equipment process is increasing during the molding process, the thickness of the metal is increased, while the area is constantly shrinking, and the final outer metal is severely wrinkled, and the folded metal is between the pressure edges and the concave mold. The frictional resistance is increased, and the tissue metal flows into the concave mode, and finally the pulse is increased, and it is more than the blanking of the strip. The induction heating equipment uses the following methods for the above problems, according to the plastic forming theory, the metal "less fierce, more wrinkles".

1. The material stack caused by external wrinkles, the rupture of the internal metal flow caused by the internal metal flow, and the feed resistance is adjusted by adding a puller in the outside, so that the internal material flows smoothly.
2. Severe deformation in the shack of the angular portion, and the interior adjacent grid has little change, whereby the rupture here can be judged that it is necessary to eliminate the process incision due to local expansion. Through the appropriate pressure size, the rupture caused by excessive pressure can be eliminated to effectively eliminate the rupture caused by the inside of the part due to the outer metal wrinkles, but the rupture of the internal factor of the parts is generally required to be modified. Partially rounded and tilt angles to avoid. Process incision is a common process method during the formation of automobile cover parts, induction heating through the finite element numerical simulation of the automobile mask frame parts, except for the external metal wrinkles and internal florescent forms It will cause internal metals to create rupture, for the uncertainty of the process incision, the opening position and size need to be reasonable, the linear process incision is more effective than the round curved process incision more effectively, the process incision is more effective. The radial tear at the corner can be avoided with a large arc corner transition, ultimately obtaining a suitable process parameters by simulation, and is effective verification in production.