Transactions of Materials and Heat Treatment

Title：Multi-objective optimization on mold heating system of changer motor bracket based on WCM technology

Authors： Zhuang Bailiang An Rongrong Xu Xianyi Wu Qiang Chen Xinlyu

Unit： Jiangsu Branch of China Academy Science & Technology Co. Ltd.

KeyWords： motor bracket wet compression molding technology thermosetting mold heating system orthogonal design

ClassificationCode：TG241

year,vol(issue):pagenumber：2021,46(8):148-156

Abstract：

In order to further study the wet compression molding (WCM) process and mold development technology, for the carbon fiber composite material parts, that is, vehicle charger bracket, the thermosetting mold was designed and developed. The heating system of thermosetting die was studied by means of finite element analysis, and the influence laws of inlet speed of mold, initial temperature of mold and temperature of heating oil on the temperature uniformity and heating rate of mold cavity surface were analyzed. The results show that when the heating time is less than 8 min, the temperature of

mold surface increases rapidly, and then it is gradually stabilized after 12 min. The optimal process parameters at this time are as follows: the inlet speed of mold is 1.5 m·s-1, the initial temperature of mold is 25 ℃, the temperature of heating oil is 140 ℃. Finally, the temperature distribution on the mold cavity surface is more uniform, and the temperature difference between cavity and core is smaller under the above process parameters after the molding test, so the composite material motor bracket with excellent quality can be obtained.

Funds：

国家科技重大专项（2018ZX04026-001-004）；科技支撑计划（工业）（CE20200021）

庄百亮（1984-），男，硕士，高级工程师 E-mail：13585317691@163.com

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