单晶镍基高温合金DD98微铣削表面质量试验

发布时间：2018-05-03 06:03

本文选题：微铣削 + 单晶　；参考：《东北大学学报(自然科学版)》2017年03期

【摘要】：为研究单晶高温合金的微铣削表面质量,使用M.A.FORD双刃端铣刀,刀刃直径为0.8 mm,试验材料为单晶高温合金DD98,完成正交试验研究.通过极差分析找出主轴转速、进给速度、铣削深度对微铣削表面质量影响的主次因素,即主轴转速的影响最大,铣削深度其次,进给速度最小;采用统计学知识,获得切削工艺参数的优化组合,使表面粗糙度最小,即主轴转速为n=3.6 kr/min,铣削深度为ap=5μm,进给速度为v=100μm/s,对此优化方案重复试验,表面粗糙度值为951 nm.并对其切削机理和影响表面质量及形貌的原因进行深入的分析,对单晶高温合金的微加工理论的机理揭示具有一定的指导意义.
[Abstract]:In order to study the micromilling surface quality of single crystal superalloy, M.A.FORD double-edged end milling cutter was used, the blade diameter was 0.8 mm, and the experimental material was single crystal superalloy DD98. The orthogonal experiment was carried out. Through the range analysis, we find out the main and secondary factors that affect the surface quality of micro-milling, that is, the spindle speed is the biggest, the milling depth is the second, and the feed speed is the least. The optimum combination of cutting process parameters is obtained and the surface roughness is minimized, that is, the spindle speed is 3.6 kr / min, the milling depth is ap=5 渭 m, and the feed speed is 100 渭 m / s. The surface roughness value of the optimized scheme is 951nm. The cutting mechanism and the reasons affecting the surface quality and morphology of single crystal superalloy are analyzed in depth, which is of certain guiding significance to reveal the mechanism of micromachining theory of single crystal superalloy.
【作者单位】：东北大学机械工程与自动化学院;辽宁工业大学机械工程与自动化学院;
【基金】：国家自然科学基金资助项目(51375082);国家自然科学基金青年基金资助项目(51505073)
【分类号】：TG132.3;TG54

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