Study on Surface Roughness of Nickel-based Supperalloy during Honing

Abstract

Abstract: To explore the honing processes of nickel-based supperalloy and achieve the high efficient machining of nickel-based supperalloy precision bores, feed-controlled honing tests of GH4169 were conducted. Then the surface roughness after honing was analyzed. The results show that, grain size and feed per stroke are significant factors affecting the surface roughness at 95% and 99.5% confidence level, but tangential speed and axial speed are not significant. Reducing grain size and feed per stroke, the average undeformed chip thickness decreases, resulting in better surface roughness，and narrower scratching grooves of the honing surface.

Key words: honing, grain size, surface roughness, orthogonal experiment, significance

摘要： 为探索镍基高温合金的珩磨加工性，进而实现镍基高温合金精密孔的高效加工，进行了GH4169定量进给珩磨试验，并对珩磨加工表面粗糙度进行了分析。结果表明：油石平均粒径及每往复进给量是影响珩磨表面粗糙度的显著因素（置信水平分别为99.5%及95%），切向珩磨速度、轴向往复速度对珩磨表面粗糙度的影响不显著；减小油石平均粒径与每往复进给量后，单颗磨粒的平均切厚、珩磨表面粗糙度和工件表面的划痕沟槽宽度减小。

关键词: 珩磨, 粒径, 表面粗糙度, 正交试验, 显著性

CLC Number:

TG58

GAO Shaowu, YANG Changyong, , XU Jiuhua, FU Yucan, ZHOU Xiaowei, YAN Wen, ZUO Peng. Study on Surface Roughness of Nickel-based Supperalloy during Honing[J]. China Mechanical Engineering.

高绍武, 杨长勇, 徐九华, 傅玉灿, 周晓卫, 闫文, 左朋. 镍基高温合金珩磨表面粗糙度研究[J]. 中国机械工程.

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