Molding process of progressive die of high temperature alloy sheet metal component with high flanging hole

Abstract

The invention relates to a molding process of a progressive die of a high temperature alloy sheet metal component with a high flanging hole is disclosed, comprising the steps of: punching a positioning hole; compressing; stretching; punching a small hole; preparing a chamfer; flanging; correcting; and cutting and forming. Compared with prior art, the invention adopts the molding process of the progressive die for continuously production to improve the work efficiency by times. The positioning hole is machined at the position close to the side edge on a strip to form a uniform positioning standard, thereby improving the positioning precision and ensuring the quality and consistency of products. In prior art, work finished by a plurality of devices is finished by one punching device, thereby saving the devices and labor occupied, reducing the production cost and meeting the requirements of batch production.

Description

technical field [0001] The invention relates to a forming process of a sheet metal part, in particular to a progressive die forming process of a high-temperature alloy sheet metal part with high flanging holes. Background technique [0002] Superalloy materials refer to alloys with certain mechanical properties, oxidation resistance and corrosion resistance at temperatures above 650 °C. At present, a large number of sheet metal parts made of this material are used in aviation and aerospace equipment. In order to ensure the safety of the equipment, there are strict requirements on the thinning and cracks of this type of sheet metal parts during processing, and The sheet metal process of the superalloy material itself is poor, and it is easy to crack during bending, punching or stretching. When the sheet metal part has high flanging holes, its forming is more difficult. At present, the forming process often used for high-temperature alloy sheet metal parts with high flanging ...

AI Technical Summary

Problems solved by technology

[0004] 1. Due to the process steps of heating, stretching, bottom cutting and contour cutting, the production parts are operated on different equipment, and continuous production cannot be formed, so that the production process takes up more labor and equipment, and the manufacturing and processing costs are higher.

[0005] 2. Due to the heating process, or even multiple heatings, the waiting time between processes is longer, which limits the production efficiency of sheet metal parts

[0006] 3. Due to multiple clamping and fixing on different equipment and the same equipment during processing, there is no consistent positioning reference in the entire processing process, resulting in poor product consistency and low precision during mass production. In addition, during the heating process The length of heating time and temperature control cannot be accurately guaranteed, and there are many human factors, resulting in unqualified and cracking products that are not easy to control, resulting in difficult production quality assurance and low pass rate of products

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