Transactions of Materials and Heat Treatment

Title：Analysis on allowable load of equipment for automobile stamping part

Authors： Wei Wei Li Hengbai Zhang Feng Wei Qingfeng Zhou Jiangqi

Unit： SAIC GM Wuling Automobile Co. Ltd.

KeyWords： stamping part allowable load forming work nominal pressure force-stroke curve

ClassificationCode：TG386.3

year,vol(issue):pagenumber：2017,42(9):87-90

Abstract：

According to the characteristics of stroke curve for a multi-link press, a control line of 80% of nominal pressure was proposed, and the allowable interval diagram of press load was drawn, namely, the force-stroke curve was divided into safety zone, critical zone and danger zone. When the forming force located below the control line of nominal pressure, a requirement of equipment load considered could be met, while, the forming work was required to check further when the forming force located at the critical zone between the control line and the curve line of nominal pressure. On the other hand, the forming work was obtained by a numerical integrating forming force from working distance. Then, the result was compared with the allowable forming work of press, and a precondition as well as the method of capacity verification were proposed. Finally, the flow chart of forming force and forming work were presented to analyze front door inner panel. The result shows that 22500 kN press can meet requirement of load for double-cavity front door inner panels.

Funds：

国家重点研发计划（2016YFB0300405）

韦韡（1983-），男，博士，高级工程师 E-mail：ljweiwei@163.com

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