Transactions of Materials and Heat Treatment

Title：Hydroforming of an engine cradle

Authors： Yuan Shijian Han Cong Liu Gang Miao Qibin Wang Zhongren (Harbin Institute of Technology)

Unit：

KeyWords： Engine cradle Internal high pressure forming Hydroforming Automotive part

ClassificationCode：U466

year,vol(issue):pagenumber：2004,29(3):41-44

Abstract：

An engine cradle prototype with full size was manufactured successfully by internal high pressure forming (IHPF) in a laboratory of Harbin Institute of Technology. The measure indicated the dimensions of the prototype are corresponding with the design requirements. The excessive thinning at the corners of the workpiece is avoided through a reasonable bending process and then the fracture during IHPF is avoided. A reasonable preform has been designed through the combination of simulation of 2D for typical sections and 3D for the whole part, by which the thickness distribution is controlled and the flash generated from the die parting surface in the final forming is avoided. The key technologies for manufacturing an engine cradle with IHPF are developed basically through the research and experiment of this engine cradle.

Funds：

Reference：

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