Transactions of Materials and Heat Treatment

Title：Simulation analysis and experimental study on forming of wide and thick plate P20 plastics mold steels

Authors： Zhao Jianguo Hu Zhenzhi Wang Yuchang Li Chunhui Jin Ming Guo Weidong Yang Gehui

Unit： LuoYang CITIC HIC Casting & Forging Co. Ltd. CITIC Heavy Industries Co. Ltd.

KeyWords： P20 plastics mold steels wide and thick plate forgings WHF method wide anvil flattening method special-shaped section

ClassificationCode：TG316

year,vol(issue):pagenumber：2022,47(5):73-80

Abstract：

P20 plastics mold steel forgings belong to special-shaped sections (core grooves) which are heavy in tonnage and large thickness and widening size, and it is difficult to ensure technical standards, forging through the compaction effect and continuity requirements of metal fiber streamlines by the traditional forming method of upsetting,blanking and flattening into finished product. Therefore, through comprehensive analysis of the forming method and control difficulties for wide and thick plate forgings，a compaction forming plan of “the first pulling length by WHF method (10 times)+ the second pulling length by WHF method (6 times) + wide anvil flattening and blanking (6 times) + forging groove” and a new method of near-net shape control were proposed, and a finite element analysis model was established by combining with process control and difficulties analysis. Then, the whole processes of the WHF method, the wide anvil flattening method and the core groove forging were simulated, and the process parameter design and the forming effect and quality of process control were predicted. At last, the rationality of the progress parameters and the forming process was verified by the trial production.

Funds：

作者简介：赵建国 (1983-)，男，硕士，工程师，E-mail：tetao_ustb@126.com；通信作者：胡振志（1981-），男，硕士，工程师，E-mail：zhenzhi401@163.com

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