磨粒排布对加压内冷却砂轮磨削性能的影响

发布时间：2018-06-14 13:51

本文选题：加压内冷却 + 磨粒排布　；参考：《机械科学与技术》2018年04期

【摘要】：考虑磨粒排布方式对砂轮磨削效率和性能有重要影响,设计制备磨粒无序和有序排布的加压内冷却砂轮,利用砂轮表面形貌检测和图像识别技术,建立砂轮磨削GH4169高温合金的三维有限元模型。采用不同磨粒排布的砂轮开展磨削GH4169高温合金的实验研究,对比分析磨削力、磨削温度、加工表面粗糙度以及表面微观形貌,研究磨粒无序和有序两种排布方式对砂轮磨削性能的影响。结果表明:对于加压内冷却砂轮而言,相对磨粒无序排布,磨粒有序排布方式能获得更优良的加工表面质量,磨削力、磨削温度和表面粗糙度均降低,且工件表面形貌更加规则完整。
[Abstract]:Considering that the distribution of abrasive particles has an important effect on grinding efficiency and performance of grinding wheel, a pressurized inner cooling grinding wheel with disordered and orderly distribution of abrasive particles is designed and fabricated. The surface morphology of grinding wheel is detected and image recognition technology is used. A three-dimensional finite element model for grinding GH4169 superalloy with grinding wheel is established. The grinding experiments of GH4169 superalloy were carried out by using grinding wheel with different grain arrangement. The grinding force, grinding temperature, surface roughness and surface morphology were compared and analyzed. The effect of disordered and ordered distribution of abrasive particles on grinding performance of grinding wheel was studied. The results show that the surface quality, grinding force, grinding temperature and surface roughness of the grinding wheel can be reduced by the ordered arrangement of abrasive particles compared with the disordered distribution of the abrasive particles, for the pressurized internal cooling grinding wheel, the grinding force, the grinding temperature and the surface roughness can be reduced. And the surface morphology of the workpiece is more regular and complete.
【作者单位】：湘潭大学机械工程学院;
【基金】：国家自然科学基金项目(51475404) 湖南省自然科学基金项目(2018JJ4082)资助
【分类号】：TG580.6

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