摘要
建立了GH4169高温合金单磨粒磨削过程的数值仿真模型,通过计算仿真并对结果进行统计分析,获得了单磨粒磨削过程与宏观砂轮磨削过程的映射关系,提出了GH4169高温合金平面磨削力的预测方法。探究了磨削速度、工件进给速度和磨削深度等工艺参数对单磨粒磨削力及砂轮磨削力影响的规律。GH4169高温合金平面磨削力的实验研究支持了理论模型和计算结果。
A numerical simulation model of single-grain grinding for superalloy GH4169 is presented,and the mapping relationship between single-grain grinding and macroscopic grinding is established based on the statistical analysis of simulation results.At last,a novel method to predict the surface grinding force of superalloy GH4169 is proposed.And the law that the grinding technical parameters,which containes peripheral wheel speed,workpiece speed and the wheel depth of cut,affect the single-grain and macroscopic grinding force is investigated.The theoretically model and computation results are supported by the surface grinding test of superalloy GH4169.
出处
《机械科学与技术》
CSCD
北大核心
2012年第5期818-821,826,共5页
Mechanical Science and Technology for Aerospace Engineering
基金
国家自然科学基金项目(51005184)资助
关键词
高温合金
平面磨削
磨削力
数值仿真
superalloy
surface grinding
grinding force
numerical simulation
