电解-磁力复合研磨镍基高温合金实验研究
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摘要
为了改善镍基高温合金GH4169制造零部件的表面质量,降低其表面粗糙度,提出了一种高效率的电解-磁力复合研磨光整加工方法。设计了电解-磁力复合研磨光整加工的试验装置,与单纯磁力加工对比,对不同加工工艺下所得合金表面的表面粗糙度、表面成分、表面残余应力进行分析。结果表明,在同等条件下,复合研磨使表面粗糙度由Ra 6.3μm降至Ra 0.8μm,完善了表面质量且加工效率提高56%;加工后表面成分无太大变化;使表面残余应力由+215 MPa转变为-186 MPa,从而获得更好的表面应力状态。
In order to improve the surface quality and reduce the surface roughness of the parts made of nickel-based superalloy(GH4169),an efficient electrolytic-magnetic composite grinding method was proposed.A test device of electrolytic-magnetic composite grinding was designed.The surface roughness,surface composition and surface residual stress of the parts under different processing were analyzed by comparing with the simple magnetic processing.Results showed that under the same condition,surface roughness of the parts after composite grinding was reduced from Ra 6.3 μm to Ra 0.8 μm,the surface quality was obviously improved and the processing efficiency was increased by 56%,the surface composition did not change much after processing,the surface residual stress was converted from + 215 MPa to-186 MPa,resulting in a better status of surface stress.
In order to improve the surface quality and reduce the surface roughness of the parts made of nickel-based superalloy(GH4169),an efficient electrolytic-magnetic composite grinding method was proposed.A test device of electrolytic-magnetic composite grinding was designed.The surface roughness,surface composition and surface residual stress of the parts under different processing were analyzed by comparing with the simple magnetic processing.Results showed that under the same condition,surface roughness of the parts after composite grinding was reduced from Ra 6.3 μm to Ra 0.8 μm,the surface quality was obviously improved and the processing efficiency was increased by 56%,the surface composition did not change much after processing,the surface residual stress was converted from + 215 MPa to-186 MPa,resulting in a better status of surface stress.
引文
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[12]廖明,韩冰,陈燕,等.钛合金管内表面的电化学磁力研磨复合光整试验[J].中国表面工程,2016,29(3):123-131.
[13]吴昊,张桂香,赵文聪.磁力研磨对440C不锈钢表面形貌的影响[J].电镀与精饰,2015,37(3):16-19.
[14]Ferreira N G,Aramof E,Corat E J,et al.Residual stresses and erystalline quality of heavily boron-doped diamond films analysed by micro-Raman spectroscopy and X-ray diffraction[J].Carbon,2003,41(6):1301-1308.
[15]罗玉梅,任凤章,张伟,等.X射线法测量多晶体材料残余应力[J].材料导报,2014,28(6):112-114.
[2]Liu G,He N,Li L,et al.Cutting forces during the high speed machining of lnconel718[J].Key Engineering Materials,2004,259-260:824-828.
[3]Kong Y H,Liu R Y,Chen G S,et al.Effects of different heat treatments on the microstructures and creep properties of GH4169 superalloy[J].Journal of materials engineering and performance,2013,22(5):1371-1377.
[4]郭文龙,杨能阁,陈燕.磁力研磨工艺对整体叶盘表面完整性的影响[J].中国表面工程,2013,26(3):10-14.
[5]孙超,张国军,尹佳超.GH4169镍基高温合金砂带磨削表面完整性分析[J].金刚石与磨料磨具工程,2016,36(1):74-78.
[6]陈春增,张桂香,赵玉刚,等.磁力研磨镍基高温合金实验研究[J].电镀与精饰,2016,38(4):6-9.
[7]陈春增,张桂香,赵玉刚.磁力研磨对lnconel718合金面质量的影响[J].电镀与涂饰,2016,35(1):23-27.
[8]黄新春,张定华,姚倡锋,等.镍基高温合金GH4169削参数对表面完整性影响[J].航空动力学报,2013,28(3):621-628.
[9]谭悦,陈燕,曾加恒,等.电解-磁力复合研磨对TA18内表面光整加工[J].电镀与涂饰,2017,36(5):248-252.
[10]杜兆伟.镍基高温合金GH4169电解-磁力复合研磨加工试验研究[D].鞍山:辽宁科技大学,2016.
[11]Z.W.Du,Y.Chen,K.Zhou,et al.Research on the electrolytic-magnetic abrasive finishing of nickel-based superalloy GH4169[J].Int J Adv Manuf Technol,2015,81:897-903
[12]廖明,韩冰,陈燕,等.钛合金管内表面的电化学磁力研磨复合光整试验[J].中国表面工程,2016,29(3):123-131.
[13]吴昊,张桂香,赵文聪.磁力研磨对440C不锈钢表面形貌的影响[J].电镀与精饰,2015,37(3):16-19.
[14]Ferreira N G,Aramof E,Corat E J,et al.Residual stresses and erystalline quality of heavily boron-doped diamond films analysed by micro-Raman spectroscopy and X-ray diffraction[J].Carbon,2003,41(6):1301-1308.
[15]罗玉梅,任凤章,张伟,等.X射线法测量多晶体材料残余应力[J].材料导报,2014,28(6):112-114.