ホブ切りにおけるCaスルホネートの工具摩耗低減効果

抄録

This paper deals with the influence of concentration of Ca sulfonate on tool wear and finished surface roughness in hobbing. Experiments were carried out using a fly tool. The effect of concentration of Ca sulfonate with using(Al, Ti)N coated tool is greater than that with using TiN coated tool. With a(Al, Ti)N coated tool, the concentration of 10%∼15% of Ca sulfonate is suitable for obtaining longer tool life, which is superior to the chlorinated fatty acid ester. Though the crater wear trends to increase with an increase in concentration of Ca sulfonate, the finished surface roughness has a tendency to decrease. It was suggested that when the Ca sulfonate was used for coated tool, the Ca composition affects on the effect of coating film, resulting the extension of tool life. The use of Ca sulfonate is effective for environmental pollution control and for improving the safety of the operator.