【摘要】：目的獲得變曲率溝槽加工方法研磨精密軸承鋼球的最優(yōu)工藝參數(shù)。方法應(yīng)用田口法對(duì)變曲率溝槽加工方法研磨球體的參數(shù)進(jìn)行實(shí)驗(yàn)和優(yōu)化,以研磨壓力、磨料粒徑、磨料濃度為主要影響參數(shù)設(shè)計(jì)正交實(shí)驗(yàn),以材料去除率、表面粗糙度和球度誤差為評(píng)價(jià)指標(biāo),通過(guò)平均響應(yīng)分析和方差分析得到最優(yōu)研磨參數(shù)組合。結(jié)果對(duì)于材料去除率,研磨壓力的影響最顯著,磨料粒徑的影響次之,磨料濃度影響最小;對(duì)于表面粗糙度,磨料粒徑的影響最大,磨料濃度的影響次之,研磨壓力影響最小;對(duì)于球度誤差,壓力的影響最大,其他因素的影響較小。結(jié)論在每球的研磨壓力為5 N、磨料粒徑為3000~#(5μm)、磨料質(zhì)量分?jǐn)?shù)為25%的條件下,球體的材料去除率最大,可達(dá)到0.28 mg/h。在磨料粒徑為5000~#(3μm)、磨料質(zhì)量分?jǐn)?shù)為25%、每球研磨壓力為2.5 N的條件下,球體的表面質(zhì)量最佳,表面粗糙度最小達(dá)到12 nm。在每球研磨壓力為0.5 N、磨料粒徑為3000~#(5μm)、磨料質(zhì)量分?jǐn)?shù)為50%的條件下,球度誤差小。
[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.
【作者單位】： 浙江工業(yè)大學(xué)超精密加工研究中心;
【基金】：國(guó)家自然科學(xué)基金(51375455,U1401247)~~
【分類號(hào)】：TG580.68

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本文編號(hào)：2335505