Transactions of Materials and Heat Treatment

Title：Design of main shear blade for aluminum extrusion press

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ClassificationCode：TG375.23；TP391.7

year,vol(issue):pagenumber：2020,45(7):160-164

Abstract：

By using Forge software and Crockroft & Latham fracture criterion, the simulation on discard shearing process of main shear was carried out. It was confirmed that the edge of main shear blade continually contacted with the discard, and the load acted on the main shear directly related to the area and magnitude of force received by the shear blade edge. Then, based on the force analysis of shear blade edge, it was recognized that the load acted on the shear blade mainly depends on the value of resistance force for shear blade edge to overcome material deformation, the width and height of blade edge and the angle between blade edge and horizontal coordinate. Combining the most dangerous working condition of shear blade edge, the finite element analysis of main shear structure was processed. The results show that when the angle between long blade edge and horizontal coordinate is large, the risk of main shear blade tipping is increased rapidly. It is proposed that the angle between long blade edge and horizontal coordinate should be determined according to the most dangerous working condition, so that the main shear blade will not only satisfy the design requirements of strength and stiffness, but also has sufficient safety margin.

Funds：

天津市科技计划项目(16YDSSGX00460)；天津市滨海新区青年英才培育计划资助项目（2019）

王晓磊(1982-)，男，工学学士，工程师 E-mail：wonsokkk@163.com 通讯作者：王丽薇（1980-），女，工学博士，高级工程师 E-mail：48181416@qq.com

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