Abstract:
Two micro-textures including micro pits and micro groove were made by laser technique on the rake face of Al
2O
3/TiC ceramic tools, and filled with MoS
2 solid lubricant. Then the micro-texture self-lubricating tools were obtained, and were used to cut hardened steel. The cutting performance of self-lubricating tools with different morphological micro-textures was studied and compared with that of traditional untextured tools. The results show that compared with the untextured tools, the main cutting force decreased by an average of 26.91% after cutting by the micro pits textured tool, and decreased by an average of 15.85% after cutting by the micro groove texured tool. The surface rough of the workpiece cutting by micro-textured tools was smaller than that cutting by untextured tools under the condition of high cutting speed and minor cutting depth and feed speed. The deformation degree of the chips after cutting by the micro pits textured tool was slighter than that after cutting by micro groove textured and untextured tools. The wear degree on the rake face of the micro pits textured tool was slighter than that of micro groove textured and untextured tools. The cutting performance of the micro pits textured tool was better than that of micro groove textured tool.