2.5D-C/SiC复合材料超声振动辅助磨削力研究
Study on Ultrasonic Vibration Assisted Grinding Force of 2.5D-C/SiC Composite
李德震 1王书海 1郑凯文 2陈晗 1田川川 1周云光1
作者信息
- 1. 东北大学秦皇岛分校控制工程学院,秦皇岛 066004
- 2. 河北工业大学机械工程学院,天津 300401
- 折叠
摘要
为探究2.5D-C/SiC复合材料超声振动辅助磨削去除机理和磨削力影响规律,首先通过试验分析了2.5D-C/SiC复合材料基体、纬向纤维、经向纤维和钉扎部分的去除机理;然后通过正交试验分析了磨削工艺参数(主轴转速ns、进给速度vw、磨削深度ap 和超声振幅A)对法向和切向磨削力的影响主次;最后通过单因素试验分析了磨削工艺参数对法向和切向磨削力的影响规律.试验结果表明,材料的去除是基体碎裂、纤维断裂、纤维拨出、界面脱粘等因素的综合作用;法向磨削力的影响主次为:ap>vw>ns>A;切向磨削力的影响主次为:vw>ap>ns>A;磨削力与ns和A成反比,与ap和vw成正比.
Abstract
To study the removal mechanism of ultrasonic vibration assisted grinding 2.5D-C/SiC compos-ites and the effect of grinding force,firstly,the removal mechanism of 2.5D-C/SiC matrix,latitudinal fi-ber,meridional fiber and nailing part was analyzed by experiments;Then the main and secondary effects of grinding process parameters(spindle speed ns,feeding rate vw,grinding depth ap and ultrasonic amplitude A)on normal and tangential grinding forces were analyzed through orthogonal tests;Finally,the influence of grinding parameters on normal and tangential grinding forces was analyzed by single factor test.The ex-perimental results show that the removal of materials is a combination of matrix fragmentation,fiber frac-ture,fiber pulling out,interface debonding and other factors;The main and secondary effects of normal grinding force:ap>vw>ns>A;The main and secondary influences of tangential grinding force:vw>ap>ns>A;The grinding force is inversely proportional to ns and A,and proportional to ap and vw.
关键词
磨削/超声振动辅助磨削/磨削力/磨削力影响规律/2.5D-C/SiC复合材料Key words
grinding/ultrasonic vibration assisted grinding/grinding force/influence law of grinding force/2.5D-C/SiC composites引用本文复制引用
基金项目
河北省自然科学基金项目(E2022501004)
中央高校基本科研业务费项目(2023GFYD002)
中国博士后科学基金资助项目(2021MD703912)
出版年
2024
NETL
NSTL
万方数据