Transactions of Materials and Heat Treatment

Title：Forming defect analysis and improvement scheme of deep hole ring

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ClassificationCode：TG316.11

year,vol(issue):pagenumber：2020,45(7):29-34

Abstract：

Taking a deep hole ring as object, to solve the wear problem of punch during forming process, the finite element software DEFORM-3D was used to simulate its forming process. The metal flow line, forming load, distribution of stress, etc were analyzed. The results show that the initial process can completely finish the forming of parts. But, the local materials

is subject to larger extrusion stress during the forming process, the local metal flow line is disorderly and the flow resistance is large during the extrusion inner hole forming process, which leads to the increasing of forming load and mold wear. By introducing a taper forming station, the original process was split into a taper forming station and a fillet filling station. Through simulation and actual trial, the feasibility of the improved scheme was verified. There are no defects such as fold, crack and scratch on the surface of parts formed. The service life of mold is significantly improved, which provides guidance for the actual production.

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沈步楼（1972-），男，硕士，高级讲师 E-mail：renzhong1814770@163.com

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