Design and analysis of the swage for swage autofrettage with a center hole

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Jin, C.S.^1 ; Yuan, R.S.^1

School of Mechanical Engineering, NanJing University of Science and Technology, Nanjing

210094, China^1

关键词: Abaqus finite element software;    Autofrettage;    Cylindrical mandrel;    Design and analysis;    Expansion and contraction;    High-speed steels;    Large diameter;    Stress and displacements;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/6/062041/pdf
DOI  :  10.1088/1757-899X/392/6/062041

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The design of tungsten carbide swage with a center hole is proposed, the interference between the cylindrical mandrel and the inner hole of the tungsten carbide swage is performed by thermal expansion and contraction to form a combined swage. The stress and displacement of the combined swage are simulated and analyzed by ABAQUS finite element software under different interferences and compared with the displacement of high-speed steel swage and solid tungsten carbide swage under working conditions. The results show that the combined swage can not only meet the requirements of autofrettage, but also can reduce the manufacturing difficulty of tungsten carbide swage with a large diameter.