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中文摘要：
针对滚齿加工中大量使用油剂冷却液带来严重环境污染这一问题,以数控滚齿机为平台,对低温冷风射流这一绿色切削技术进行了试验研究。通过低温冷风射流和常规油剂冷却对45钢的加工对比试验,探讨了低温冷风射流对刀具磨损和工件齿面粗糙度的影响机理;并运用正交试验法安排试验,通过极差和方差分析,分别寻找出了最佳的低温冷风切削参数及各因素对齿面粗糙度影响的显著度。试验结果显示,相对于常规油冷切削,低温冷风射流技术具有明显的优势,能有效地降低切削区温度,减少刀具磨损和降低齿面粗糙度值;正交试验获得的最佳的冷风切削参数为：冷风温度-35℃,进给量0.3mm/r,有微量润滑。
英文摘要：
Traditional gear hobbing process usually uses quantities of oil solutions as cutting coolant, which bring serious environmental pollution. For this problem, cold air as coolant has being investigated, and the effects of this new green coolant have been studied on surface roughness of work-piece and tool wear in the present experiment while turning steel 45. And the best machining condition has been searched out by orthogonal experiment. Experimental results reveal that, compared with conventional oil cutting, cold air with minimal quantity lubrication enable substantial improvement in tool life and reduction in work- piece surface roughness through effective control of cutting zone temperature ; The optimization results indicated that cold air temperature-35℃, a feed rate of 0.3mm/r and with minimal quantity lubrication is essential to minimize tooth-face roughness.
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