Orthogonal Experiment of ELID Mirror Grinding for SUS304 Stainless Steel
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摘要: SUS304不锈钢具有高耐腐耐磨性和良好的综合性能而被广泛应用,但其高韧性和低导热性使传统的SUS304不锈钢磨削或车削工艺存在一定困难。在线电解修整ELID(Electrolytic in-process dressing)磨削技术能有效地用于SUS304不锈钢镜面磨削加工。本文主要对SUS304不锈钢进行ELID镜面磨削正交化实验研究以获得合理的工艺参数。首先利用#325砂轮进行7个影响因素2水平的正交磨削实验,获得初步的优化参数,然后利用#1200砂轮进行3个影响因素2水平的正交镜面磨削实验。通过改变削件砂轮转速、X和Y平台移动速度、进给率和ELID电源件等各种磨削条件,获得优化后的磨削工艺参数,进行了相应的磨削验证,并讨论了工艺参数对磨削特性的影响。研究了不同砂轮磨粒对表面粗糙度的影响,使用#8000金刚石砂轮对SUS304不锈钢镜面磨削,获得表面粗糙度Ra=3.6 nm。Abstract: SUS340 stainless steel is widely used because of high corrosion resistance, wear resistance and combinationproperty.The high toughness and low thermal conductivity make SUS304 stainless steel difficult to be ground or lathed inconventional machining.ELID (Electrolytic in-process dressing) grinding technique is an effective grinding process formirror grinding SUS304 stainless steel.In order to botain optimized grinding parameters for ELID grinding SUS304 stainless steel, orthogonal grinding experiment with seven factors and two levels using #325 grinding wheel and with three factors and two levels using #1200 grinding wheel were conducted.Through changing rotation speed of grinding wheel，speeds of X and Y tables, feed rate and ELID conditions, the influence of grinding parameters on the grinding characteristics were discussed.ELID mirror grinding of SUS304 stainless steel plane was conducted using various grain sizes, andsurface roughness of 3.6 nm in Ra was achieved using #8000 grinding wheel.
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Key words:
- ELID grinding /
- SUS304 /
- stainless steel /
- orthogonal experiment /
- mirror grinding
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[1] 关佳亮, 杨亚兰, 孙志杰, 赵增强, 舒行军. 不锈钢的 ELID 磨削实验研究[J]. 现代制造工程, 2009，(10): 17, 18 [2] 黄云, 杨春强, 黄智. 304 不锈钢砂带磨削试验研究[J]. 中国机械工程, 2011, 22(3): 291～295 [3] Chen F J, et al. Profile error compensation in ultra-precision grinding of aspheric surfaces with on machine measurement[J]. International Journal of Machine Tools and Manufacture, 2010, 50 (5): 480～486 [4] 杨春强, 黄云, 黄智, 张栋升. 1 Cr13 不锈钢砂带磨削试验研究[J]. 机械科学与技术, 2011, 30(6): 1007～1010 [5] Sanchez J A, et al. Electrical discharge truing of metal-bonded CBN wheels using single-point electrode[J]. International Journal of Machine Tools and Manufacture, 2008, 48 (3, 4): 362～370 [6] Ohmori H, Nakagawa T. Analysis of mirror surface generation of hard and brittle materials by ELID-grinding with superfine grain metallic bond wheels[J]. CIRP Annals Manufacturing Technology, 1995, 44(1): 287～290 [7] Ohmori H, et al. Functionalization of stainless steel surface through mirror quality finish grinding[J]. CIRP Annals Manufacturing Technology, 2008，57(1):545～549 [8] 尹韶辉等. ELID 镜面磨削加工技术研究进展[J]. 中国机械工程, 2010, 21 (6): 750～755 -
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