| This research thesis studies the performance of microgroove textured cutting tool in dry orthogonal machining of mild steel (AISI 1045 steel) and three dimensional turning of Ti alloy (Ti-6Al-4V) using AdvantEdge finite element simulation and Pro/E software. Micro textures are designed on the rake face of cemented carbide (WC/Co) cutting inserts. The purpose is to examine the effect of microgroove/microbump textured tools on machining performance and to compare it with non-textured cutting tools. Specifically, the following texture parameters are examined: groove/bump width, groove depth/bump high, and edge distance (the distance from cutting edge to the first groove/bump). Their effects are assessed in terms of the main force, thrust force, and chip-tool contact length. It is found that micro textured cutting tools generate lower cutting force and thrust force and consequently lower the energy necessary for machining. In addition, the friction behavior and tool wear of textured tool are improved. Each texture parameter has influence on cutting force in its own ways. |
