Transactions of Materials and Heat Treatment

Title：Analysis on forging technology of fuel injector bodies with long branch

Authors： Yang Cheng Sun Hao Sun Yue Zhuang Xiaowei Shao Jie

Unit： Xi′an Jiaotong Xi′an University of Architecture and Technology Jiangsu Longcheng Precision Forging

KeyWords： fuel injector bodies long branches flow control slot preforging hot trimming

ClassificationCode：TG316

year,vol(issue):pagenumber：2017,42(3):11-14

Abstract：

In order to solve the unfilled branch in forging process of fuel injector bodies with a long branch, a technology of local bulgingpreforging with controlled flowfinal forginghot trimming was put forward. Initial blank size with Φ32 mm in diameter and 161 in length was determined by the structure analysis method, and the feasibility of the forming technology was tested by FEM and experiments. The results show that the metal flow is controlled by the flow control slot in the preforging of the new technology. Comparing with normal forming, more metal materials are gathered into the branch cavity without increasing the billet size,and the long branch is filled completely in the final forging process. Thus, the wellshaped products can be forged successfully.

Funds：

陕西省教育厅专项（16JK1462）;陕西省耐磨材料工程技术研究中心专项（2016NMZX07）

杨程（1976-），男，博士，副教授

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