Study On The Structure Design Of Micro-textured Self-lubricating Tools

The finite element simulation has become an important tools in the tool design. Therefore, research the performance of the tool by using finite element method simulation. Combination of dry cutting theory, introduce micro-texture structure into the surface of the cutting tool to study the structure of micro-texture self-lubricating dry cutting tools.Design different micro-texture model which combined with the finite element method to analysis the stress concentration of micro-texture self-lubricating tool. The effect of micro-texture on stress distribution of the cutting tools were analyzed and the appropriate micro-texture structural parameters were put forward:The W-TY tool has two rounds oval-shaped micro-texture, the distance L1is0.15mm; the distance L2is0.15mm; the depth H is0.1mm;the width B is0.08mm.The W-PX tool has three stirps of micro-texture which parallel to the cutting edge; the distance L1is0.15mm; the distance L2is0.15mm; the depth H is0.1mm;the width B is0.08mm.The Finite Element Analysis modeling for analysis of cutting temperature and cutting forces distribution of micro-texture self-lubricating tool were established. The simulate result indicated that the micro-texture can reduce the force on the cutting edge. The W-TY tool make cutting force reduced10%The W-PX tool make cutting force reduced5%..The W-TY tool and the W-PX tool respectively make the tool point temperature reduced40%-50%and30%.Cutting text on45#steel were carried out with micro-texture self-lubricating cutting tool and traditional tool YS8. Cutting test results compared with the simulation results. The results showed that:cutting force and cutting temperature trend is consistent with the experimental results. Proved the feasibility of design the micro-texture self-lubricating tool by finite element simulation.