Experiment Analysis and Modelling of Compaction Behaviour of Ag60Cu30Sn10 Mixed Metal Powders

4th International Conference on Advanced Engineering and Technology

Zhou, Mengcheng^1 ; Huang, Shangyu^1,2 ; Liu, Wei^1 ; Lei, Yu^1 ; Yan, Shiwei^1

School of Materials Science and Engineering, Wuhan University of Technology, Wu Han

430070, China^1

State Key Laboratory of Materials Processing and Die and Mould Technology, Huazhong University of Science and Technology, Wu Han

430070, China^2

关键词: Densification behaviour;    Drucker-Prager Cap models;    Experiment analysis;    Friction coefficients;    Material parameter;    Optimization-simulation;    Powder compactions;    Silver-based filler metal;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/317/1/012011/pdf
DOI  :  10.1088/1757-899X/317/1/012011

来源: IOP

【 摘 要 】

A novel process method combines powder compaction and sintering was employed to fabricate thin sheets of cadmium-free silver based filler metals, the compaction densification behaviour of Ag60Cu30Sn10 mixed metal powders was investigated experimentally. Based on the equivalent density method, the density-dependent Drucker-Prager Cap (DPC) model was introduced to model the powder compaction behaviour. Various experiment procedures were completed to determine the model parameters. The friction coefficients in lubricated and unlubricated die were experimentally determined. The determined material parameters were validated by experiments and numerical simulation of powder compaction process using a user subroutine (USDFLD) in ABAQUS/Standard. The good agreement between the simulated and experimental results indicates that the determined model parameters are able to describe the compaction behaviour of the multicomponent mixed metal powders, which can be further used for process optimization simulations.