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表面激光织构对碳化硅陶瓷磨削性能影响研究

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目前工程陶瓷材料的加工方式主要依靠金刚石砂轮磨削,传统磨削加工中,碳化硅陶瓷本身的硬脆性导致加工过程易引入表面/亚表面损伤,且存在切削力大、砂轮磨损严重、材料去除率低等问题.针对上述难题,本文通过表面织构技术辅助碳化硅陶瓷磨削,采用毫秒脉冲激光在碳化硅陶瓷表面烧蚀特定且均匀分布的表面织构,深入研究激光表面织构参数对碳化硅陶瓷磨削性能的影响规律.结果表明:保持磨削加工参数及状态不变,当织构深度和宽度一定时,织构横向间距(织构面积)对磨削力的影响最大,横向间距越大,粗糙度值越大;与传统磨削加工相比,两种激光织构辅助磨削性能均有所提升,其中网格状织构表现更为优异.
Effect of Surface Laser Texture on Grinding Performance of Silicon Carbide Ceramics
At present,the processing method of engineering ceramic materials mainly depends on diamond grinding wheel.The hard brittleness of SiC ceramics in traditional grinding process leads to the easy introduction of surface/subsur-face damage in grinding process,and the cutting force is large,the grinding wheel is worn seriously,and the material remov-al rate is low,which seriously restricts its wider application in modern industry.In order to solve the above problems,surface texture technology is used to assist the grinding process of SiC ceramics.The surface texture of SiC ceramic surface is abla-ted by millisecond pulse laser.The influence of laser surface texture parameters on the grinding performance of silicon car-bide ceramics is deeply studied.The results show that when the geometric parameters of texture depth and width are fixed,the lateral spacing of the texture has the greatest influence on the grinding force,and the larger the transverse spacing is,the greater the roughness value is.Compared to conventional grinding processing,the performance of laser-assisted grinding is improved,and the grid texture performance is better.

silicon carbide ceramicsurface texturelaser assisted grindinggrinding performance

蒋洁、温东东、张晓红、何田仲森

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岳阳职业技术学院

湖南科技大学

湖南理工学院

碳化硅陶瓷 表面织构 激光辅助磨削加工 磨削性能

湖南省自然科学基金杰出青年项目湖南省研究生科研创新项目岳阳职业技术学院科研项目

2021JJ10031CX20221043yz20-02

2024

工具技术
成都工具研究所

工具技术

CSTPCD北大核心
影响因子:0.147
ISSN:1000-7008
年,卷(期):2024.58(4)
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