Transactions of Materials and Heat Treatment

Title：Hot extrusion die design of an automobile shock absorber shell

Authors： Wang Shaochun Zhang Xiaohui Chen Fengwei Wang Xiaoxiang Cai Zhigang

Unit： Harbin Institute of Technology

KeyWords： absorber shell hot extrusion process one-step forming die design welding seam

ClassificationCode：TG376.2

year,vol(issue):pagenumber：2016,41(9):96-99

Abstract：

For the structure characteristics of the automobile shock absorber shell, the solutions and

design route of the new process, which realized the hot extrusion integral forming by

composite process of forward extrusion and lateral extrusion,were put forward by forming

process analysis, and the hot extrusion die of the shock absorber shell was designed.

Furthermore, the head of punch was designed as a flat bottomed cone, and the unit extrusion

pressure was reduced. The die was designed as the composite structure of extrusion container

and extrusion die to solve the problem of the manufacturing technology of die and the

convenient withdrawal of the part. Then, the structure principle and working principle of the

die were discussed to ensure the die to satisfy the requirements of the hot extrusion

experiment. A theoretical analysis and calculation of key components of the die were carried

out. And through the experimental method, the cylindrical part is with smooth surface and

without defects, its size accuracy and mechanical properties in line with the requirements

were formed out. The experimental results show that the process scheme and the die structure

design are feasible and practical.

Funds：

黑龙江省自然科学基金资助项目(E0310)

王少纯(1963-)，男，博士，副教授张晓辉（1972-），男，硕士，工程师

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