B15 Improvement in Surface Quality with Solid Lubrication in Turning AISI 4340 steel(Advanced machining technology)

概要

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Turning is one of the most fundamental and indispensable processes of metal removal in industry. The heat generated in the cutting zone during turning is critical in deciding the workpiece quality and tool life. Though cutting fluids are widely employed to carry away the heat in metal cutting, their usage poses threat to ecology and the health of workers. Hence, there arises a need to identify eco-friendly and user-friendly alternatives to conventional cutting fluids. Solid lubricant assisted machining is a novel concept to control the machining zone temperature without polluting the environment. Solid lubricant, if employed properly, could control the machining zone temperature effectively by intensive removal of heat from the machining zone. Therefore, the aim of present study is to investigate the effect of graphite as solid lubricant in the zone of machining. Experiments were carried out to investigate the role of solid lubricant such as graphite on surface finish of the product in machining a AISI 4340 steel by uncoated cemented carbide inserts of different tool geometry under different cutting conditions. Results indicate that the effectiveness of solid lubricant is substantial through the experimental domains.
一般社団法人日本機械学会の論文
2009-12-01