平台珩磨对缸套影响的建模与分析

Santhosh H, R. Kumar, D. S, V. S
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引用次数: 0

摘要

珩磨是一种磨料过程,通过使用磨料石的三次同时运动来去除材料并产生凹槽。由于珩磨是一种磨蚀操作,因此分析预测工艺结果具有挑战性。在高原珩磨过程中,表面的陡峭峰被消除,产生一个合理的高原光洁度,以及保留油和增加承载面积的交叉舱口图案。气缸套安装在发动机缸体中,以提供一个圆柱形腔,其中活塞可以非常顺利地移动。为了获得良好的珩磨图案和表面粗糙度,机器设置起着重要的作用,它包括许多机器参数,如珩磨力、冲程数、进给速度、加工时间等。因此,为了获得最佳的机器设置,在气缸套上进行多次试验,这需要更多的时间,并且对于每一次试验,使用一个气缸套样品,这导致消耗更多的气缸套单独用于试验目的。确定了影响缸套表面粗糙度的关键参数,选择了最优珩磨参数(机床设置)。通过有限元分析,找出了压力对缸套壁面的影响。根据实验结果,得到了珩磨机的最佳设置,所选择的表面粗糙度具有较小的椭圆度和锥度,且对缸套的影响较小。
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Modelling and Analysis of The Effect of Plateau Honing Operation on Cylinder Liners
Honing is an abrasive procedure that removes material and creates grooves by employing three simultaneous motions of abrasive stones. Because honing is an abrasive operation, predicting the process outcome analytically is challenging. The steep peaks of a surface are eliminated during the plateau honing process, producing a reasonably plateau finish along with cross hatch pattern for retaining oil and increased bearing area. A cylinder liner is installed in an engine block to provide a cylindrical chamber where the piston may move extremely smooth. To obtain a honing pattern and good surface roughness, the machine setting plays an important role which includes many machine parameters like honing force, number of stokes, feed rate, processing time etc. So, in order to obtain an optimal machine set up, multiple trails on cylinder liners are done, which takes more time, and for each trail, one cylinder liner specimen is utilised, which results in the consumption of more cylinder liner solely for trail purposes. In this work, the key parameters effecting the surface roughness of cylinder liner are identified and optimal honing parameters (machine setup) are selected. FEA analysis is carried out to find the effect of pressure on the walls of cylinder liners. Based on the results of experiment, the optimal setting for honing machine is obtained for the selected surface roughness with less ovality and taper and also has less effect on cylinder liners.
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来源期刊
Journal of Mines, Metals and Fuels
Journal of Mines, Metals and Fuels Energy-Fuel Technology
CiteScore
0.20
自引率
0.00%
发文量
101
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