Experimental Study On Titanium Alloy Cutting Process Using Surface Micro-textured Cutting Tool

Due to its excellent mechanics and mechanical properties, titanium alloy has been widely used inaerospace and other industry fields. But, the titanium alloy is one of the difficult-to-machine materials,and cemented carbide is the main cutting tool used for machining titanium alloy, the serious tool wearin the cutting process restricts the high efficient and precision machining of titanium alloy. In thispaper, the micro-texture has been made on the cemented carbide cutting tool surface to improve thefriction and wear of the tool and chip interface, and improve the cutting tool durability. The majorworks are included as follows:1. The different types of surface micro-texture were made on the cemented carbide cutting toolsurface by using laser processing technology, and then, the deburring processing andultrasonic cleaning processing were taken. The micro-texture parameters on the cutting toolsurface were measured by three-dimensional digital microscope to inspect the dimensionalaccuracy.2. One of finite element software was used to the three-dimensional finite simulation of thetitanium alloy Ti6Al4V orthogonal cutting processing using surface micro-textured tools.The effect of the cutting speed, depth of cut and the micro-texture depth on cutting force,cutting temperature, the contact length of tool and chip and cutting tool tress was revealedduring the titanium alloy cutting process using surface micro-textured cutting tools.3. The micro-texture tools were used in titanium alloy orthogonal cutting process, combinedwith the minimum quality lubrication. Through the analysis of the cutting force and cuttingtemperature, the effect of different types of surface micro-texture on the tool cuttingperformance was studied, and the simulation results were verified.