变曲率沟槽精密球研磨加工优化实验研究
发布时间：2018-11-16 12:20
【摘要】：目的获得变曲率沟槽加工方法研磨精密轴承钢球的最优工艺参数。方法应用田口法对变曲率沟槽加工方法研磨球体的参数进行实验和优化,以研磨压力、磨料粒径、磨料浓度为主要影响参数设计正交实验,以材料去除率、表面粗糙度和球度误差为评价指标,通过平均响应分析和方差分析得到最优研磨参数组合。结果对于材料去除率,研磨压力的影响最显著,磨料粒径的影响次之,磨料浓度影响最小;对于表面粗糙度,磨料粒径的影响最大,磨料浓度的影响次之,研磨压力影响最小;对于球度误差,压力的影响最大,其他因素的影响较小。结论在每球的研磨压力为5 N、磨料粒径为3000~#(5μm)、磨料质量分数为25%的条件下,球体的材料去除率最大,可达到0.28 mg/h。在磨料粒径为5000~#(3μm)、磨料质量分数为25%、每球研磨压力为2.5 N的条件下,球体的表面质量最佳,表面粗糙度最小达到12 nm。在每球研磨压力为0.5 N、磨料粒径为3000~#(5μm)、磨料质量分数为50%的条件下,球度误差小。
[Abstract]:Objective to obtain the optimum technological parameters for grinding precision bearing steel balls by variable curvature grooves. Methods the parameters of ball grinding with variable curvature grooves were tested and optimized by Taguchi method. The orthogonal experiment was designed with grinding pressure, abrasive particle size and abrasive concentration as the main parameters, and the material removal rate was used. The surface roughness and sphericity error are the evaluation indexes. The optimum grinding parameters are obtained by the analysis of average response and variance. Results for the material removal rate, the effect of grinding pressure was the most significant, the influence of abrasive particle size was the second, and the influence of abrasive concentration was the least, while for surface roughness, the influence of abrasive particle size was the greatest, the influence of abrasive concentration was the second, and the influence of grinding pressure was the least. For sphericity error, the influence of pressure is the biggest, and the influence of other factors is small. Conclusion under the conditions of grinding pressure of 5 N per ball and abrasive particle size of 3 000 (5 渭 m),) abrasive mass fraction of 25%, the material removal rate of the ball is the highest, reaching 0. 28 mg/h.. Under the condition of abrasive particle size of 5 000 ~ # (3 渭 m),) abrasive mass fraction of 25 and grinding pressure of 2. 5 N per ball, the surface quality of the ball is the best and the surface roughness is the minimum of 12 nm.. Under the conditions of grinding pressure 0.5 N per ball and abrasive particle size 3 000 # (5 渭 m), abrasive mass fraction 50%), the sphericity error is small.
【作者单位】： 浙江工业大学超精密加工研究中心;
【基金】：国家自然科学基金(51375455,U1401247)~~
【分类号】：TG580.68
本文编号：2335505
[Abstract]:Objective to obtain the optimum technological parameters for grinding precision bearing steel balls by variable curvature grooves. Methods the parameters of ball grinding with variable curvature grooves were tested and optimized by Taguchi method. The orthogonal experiment was designed with grinding pressure, abrasive particle size and abrasive concentration as the main parameters, and the material removal rate was used. The surface roughness and sphericity error are the evaluation indexes. The optimum grinding parameters are obtained by the analysis of average response and variance. Results for the material removal rate, the effect of grinding pressure was the most significant, the influence of abrasive particle size was the second, and the influence of abrasive concentration was the least, while for surface roughness, the influence of abrasive particle size was the greatest, the influence of abrasive concentration was the second, and the influence of grinding pressure was the least. For sphericity error, the influence of pressure is the biggest, and the influence of other factors is small. Conclusion under the conditions of grinding pressure of 5 N per ball and abrasive particle size of 3 000 (5 渭 m),) abrasive mass fraction of 25%, the material removal rate of the ball is the highest, reaching 0. 28 mg/h.. Under the condition of abrasive particle size of 5 000 ~ # (3 渭 m),) abrasive mass fraction of 25 and grinding pressure of 2. 5 N per ball, the surface quality of the ball is the best and the surface roughness is the minimum of 12 nm.. Under the conditions of grinding pressure 0.5 N per ball and abrasive particle size 3 000 # (5 渭 m), abrasive mass fraction 50%), the sphericity error is small.
【作者单位】： 浙江工业大学超精密加工研究中心;
【基金】：国家自然科学基金(51375455,U1401247)~~
【分类号】：TG580.68
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