6061T651铝合金单颗磨粒磨削仿真

2020-10-19

作者：曹颜楠，苗艺男，关玉明单位：河北工业大学机械学院

摘要：通过简化并建立单颗磨粒磨削模型，采用ANSYS LSDYNA进行对6061T651特种铝合金磨削过程的理论研究和仿真分析，总结了单颗磨粒的磨削速度、磨削深度等工艺参数对磨削力大小以及磨屑的影响。研究表明：随着磨削速度的增加，单个磨料颗粒的磨削力减小，并且递减速率呈先增大后减小的趋势；而磨削深度的增加则会使单个磨料颗粒的磨削力增大，且递增速率逐渐减缓。磨削过程中，磨屑形状受加工参数的影响，其中，磨削深度对磨屑形状的影响比磨削速度对磨屑形状的影响更大。

关键词：6061T651铝合金；单颗磨粒；ANSYS LSDYNA；工艺参数；磨削力

中图分类号：TG580.6；TH161文献标志码：ADOI：10.3969/j.issn.1000-7008.2020.04.007

Grinding Simulation of 6061T651 Aluminum Alloy Single Grinding Grain

Cao Yannan，Miao Yinan，Guan Yuming

Abstract:By simplifying and establishing the grinding model of single grinding grain，ANSYS LSDYNA is used for theoretical research and simulation analysis of the grinding process of 6061T651 special aluminum alloy，and the influence of the grinding speed and grinding depth of single grinding grain on the grinding force and grinding chip is summarized.The results show that the grinding force of individual abrasive particles decreases with the increase of grinding speed，and the decreasing rate increases first and then decreases.The increase of grinding depth will increase the grinding force of individual abrasive particles，and the increasing rate will slow down gradually.During the grinding process，the shape of grinding chips is affected by the machining parameters，among which，the grinding depth has more influence on the shape of grinding chips than the grinding speed.

Keywords:6061T651 aluminum alloy；single abrasive grain；ANSYS LSDYNA；process parameters；grinding force