陶瓷金刚石砂轮在YG10X顶锤磨削加工中的应用
|
摘要
采用自行设计的陶瓷结合剂金刚石砂轮加工硬质合金顶锤,用低浓度金刚石砂轮加工其平面,用高浓度金刚石砂轮加工其外圆,并与树脂金刚石砂轮的磨削加工进行对比。实验结果表明:同等条件下陶瓷金刚石砂轮的锋利度要高于树脂金刚石砂轮的锋利度,其加工速度更快,且磨削产生的热要远低于树脂砂轮的;平面磨削中,陶瓷金刚石砂轮通过调整工艺参数或调细金刚石粒度能够获得更好的表面粗糙度;外圆磨削中,陶瓷砂轮较树脂砂轮加工效率提升约50%,当陶瓷金刚石砂轮浓度达到200%时,砂轮性价比最高。
A new kind of anvil with high strength and densing was machined by self-designed vitrified bonded diamond grinding wheel that low diamond concentration was designed for flat surface processing and high concentration for circumferential surface processing,and the machining performance were compared with that by resin bond diamond wheel.The results show that the sharpness of vitrified bonded diamond wheel was higher than that of resin bond diamond wheel under the same conditions,the processing speed was faster,and the heat generated by grinding was much lower than that of resin bond wheel.In surface grinding,the better surface roughness using vitrified bond grinding wheel was obtained by ways of adjusting machining parameters and fine diamond grit.In cylindrical grinding,the processing efficiency of vitrified bond wheel was increased by about 50% compared with that of resin bond wheel and vitrified bond diamond wheel had higher cost-conformance when its concentration came to 200%.
A new kind of anvil with high strength and densing was machined by self-designed vitrified bonded diamond grinding wheel that low diamond concentration was designed for flat surface processing and high concentration for circumferential surface processing,and the machining performance were compared with that by resin bond diamond wheel.The results show that the sharpness of vitrified bonded diamond wheel was higher than that of resin bond diamond wheel under the same conditions,the processing speed was faster,and the heat generated by grinding was much lower than that of resin bond wheel.In surface grinding,the better surface roughness using vitrified bond grinding wheel was obtained by ways of adjusting machining parameters and fine diamond grit.In cylindrical grinding,the processing efficiency of vitrified bond wheel was increased by about 50% compared with that of resin bond wheel and vitrified bond diamond wheel had higher cost-conformance when its concentration came to 200%.
引文
[1] JIA K,FISCHER T E.Abrasion resistance of nanostructured and conventional cemented carbides[J].Wear,1996,200(1-2):206-214.
[2] GILLE G,SZESNY B,DREYER K.Submicron and ultrafine grained hard metals for micro drills and metal cutting inserts[J].International Journal of Refractory Metals&Hard Materials,2002,20(1):3-22.
[3]徐涛.硬质合金高端产品及新材料发展趋势分析[J].硬质合金,2011,28(6):395–402.XU Tao.Development trend analysis of advanced products and new materials of cemented carbide[J].Cemented Carbide,2011,28(6):395-402.
[4]王松顺.提高硬质合金顶锤使用寿命的途径及方法[J].超硬材料工程,2007,19(6):28–31.WANG Songshun.Ways of improving life of anvil made of hard alloy[J].Superhard Material Engineering,2007,19(6):28-31.
[5]吴恩熙,周旭峰,于绍武,等.硬质合金大规格顶锤成型工艺的研究[J].硬质合金,2005,22(3):152–155.WU Enxi,ZHOU Xufeng,YU Shaowu,et al.Research on the product technology in compacting about big size cemented carbide of anvil[J].Cemented Carbide,2005,22(3):152-155.
[6]高新亮.亚微米硬质合金顶锤的研制[J].超硬材料工程,2010,22(1):13–17.GAO Xinliang.The sub-micron cemented carbide anvil development[J].Superhard Material Engineering,2010,22(1):13-17.
[7]刘立生,张雪芬.硬质合金顶锤加工应力的研究[J].金属材料与冶金工程,1993(3):10–12.LIU Lisheng,ZHANG Xuefen.Research on machining stress of cemented carbide anvil[J].Metal Materials and Metallurgical Engineering,1993(3):10-12.
[8]项品生,王光祖.影响硬质合金顶砧使用寿命的若干因素[J].金刚石与磨料磨具工程,1996(6):11–14.XIANG Pinsheng,WANG Guangzu.Factors affecting the life of cemented carbide anvil[J].Diamond&Abrasives Engineering,1996(6):11-14.
[9] LIU Y B,LIU W,HUANG X,et al.Research on high performance vitrified bond diamond wheel[J].Advanced Materials Research,2012,497:83-88.
[2] GILLE G,SZESNY B,DREYER K.Submicron and ultrafine grained hard metals for micro drills and metal cutting inserts[J].International Journal of Refractory Metals&Hard Materials,2002,20(1):3-22.
[3]徐涛.硬质合金高端产品及新材料发展趋势分析[J].硬质合金,2011,28(6):395–402.XU Tao.Development trend analysis of advanced products and new materials of cemented carbide[J].Cemented Carbide,2011,28(6):395-402.
[4]王松顺.提高硬质合金顶锤使用寿命的途径及方法[J].超硬材料工程,2007,19(6):28–31.WANG Songshun.Ways of improving life of anvil made of hard alloy[J].Superhard Material Engineering,2007,19(6):28-31.
[5]吴恩熙,周旭峰,于绍武,等.硬质合金大规格顶锤成型工艺的研究[J].硬质合金,2005,22(3):152–155.WU Enxi,ZHOU Xufeng,YU Shaowu,et al.Research on the product technology in compacting about big size cemented carbide of anvil[J].Cemented Carbide,2005,22(3):152-155.
[6]高新亮.亚微米硬质合金顶锤的研制[J].超硬材料工程,2010,22(1):13–17.GAO Xinliang.The sub-micron cemented carbide anvil development[J].Superhard Material Engineering,2010,22(1):13-17.
[7]刘立生,张雪芬.硬质合金顶锤加工应力的研究[J].金属材料与冶金工程,1993(3):10–12.LIU Lisheng,ZHANG Xuefen.Research on machining stress of cemented carbide anvil[J].Metal Materials and Metallurgical Engineering,1993(3):10-12.
[8]项品生,王光祖.影响硬质合金顶砧使用寿命的若干因素[J].金刚石与磨料磨具工程,1996(6):11–14.XIANG Pinsheng,WANG Guangzu.Factors affecting the life of cemented carbide anvil[J].Diamond&Abrasives Engineering,1996(6):11-14.
[9] LIU Y B,LIU W,HUANG X,et al.Research on high performance vitrified bond diamond wheel[J].Advanced Materials Research,2012,497:83-88.