表面沟槽微织构刀具高速微车削试验研究

针对微型刀具高速微切削过程中磨损严重的问题,基于表面非光滑技术,在刀具表面置入沟槽微织构,达到增强刀具减磨排热、抗粘结以及刀具抗磨能力。利用激光加工技术在微型车刀表面加工沟槽微织构;使用自行研制的高速微车削实验装置进行AL6061微加工实验,并针对刀具表面磨损状况、切屑形态、已加工表面粗糙度等三个方面进行评价。试验结果表明,沟槽微织构在提高刀具减摩性能及改善切屑形态和已加工表面质量方面效果良好。

Experimental Study on High Speed Micro-turning for Micro Grove Texture Tool

In view of the serious problem of tool wear during micro-cutting process with high speed,the cutting prop-erties consisting of reducing friction,exhausting heat,anti-sticking and anti-wearing based on non-smooth surface tech-nology is enhanced by implanting groove micro texture into the tool surface. The groove micro texture in the tool sur-face is machined by utilizing laser processing technology. The micro-machined AL6061 experiment is performed with the high-speed micro-turning experimental device which is designed by own. The cutting properties from three aspects are evaluated, which are the chip form, the tool wear condition and the roughness of machined surface in respectively. The experimental results show that the groove micro texture have a good influence on improving wear resistance of the tool,the quality of machined surface and the chip form as well.