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中文摘要：
对难加工材料F92耐热钢进行了铣削试验，在干切削条件下使用硬质合金涂层立铣刀进行加工，分析了该材料的铣削机理，研究了切削速度、进给量、切削深度三因素对切削力、加工表面粗糙度以及刀具磨损的影响，在此基础上获得了高效率、高精度的加工工艺参数。结果表明：当切削速度为94m·min^-1、每齿进给量为0．06mm、切削深度为7．5mm时主切削力较小（〈170N），同时可以得到较好的表面加工质量（Ra〈0．4μm），铣刀的主要的磨损形式是涂层剥落和磨粒磨损。
英文摘要：
F92 heat-resistant steel is difficult to be machined. A series of milling experiments were designed to analyze the milling mechanism of F92 heat-resistant steel, as well as the influences of cutting speed, feed rate and cutting depth on the cutting forces, roughness of surface and tool wear. A group of optimized milling parameters were obtained to get high efficiency and machining accuracy. The results show that the cutting force （〈170 N） was small and the milled surface had low roughness （Ra〈0. 4μm） when cutting speed was 94 m · min^-1 and feed per tooth was 0. 06 mm and the milling depth was 7. 5 mm. The main modes of tool wear were coating flaking off and abrasion by abrasive grains.
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