Experimental Study of Both-Sides Cylindrical Roller Machining Based on Ceramic Plate
Experimental Study of Both-Sides Cylindrical Roller Machining Based on Ceramic Plate
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DOI：
10.3390/lubricants10100227
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发表时间：
2022-09
期刊：
影响因子：
3.5
通讯作者：
Tianchen Zhao;Junkai Ding;K. Feng;Julong Yuan;Binghai Lyu;Xun Lv;Xingling He
中科院分区：
文献类型：
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作者：
Tianchen Zhao;Junkai Ding;K. Feng;Julong Yuan;Binghai Lyu;Xun Lv;Xingling He
为了提高圆柱滚子加工的精度和批量一致性，提出了一种基于硬质陶瓷板的双面圆柱滚子加工方法。传统的铸铁和不锈钢抛光板被硬度高、耐磨性好的陶瓷材料取代。圆柱滚子在无心磨削加工后，用氧化铝陶瓷片进行双面研磨抛光。通过对加工前后轧辊的圆度、直径、表面质量以及陶瓷板的磨损情况进行对比分析，以评价该方法的可行性和有效性。经过1h磨削和8h抛光后，圆柱滚子的平均圆度由初始的2.3 μ m下降到0.32 μ m，而各滚子的圆度趋于一致。同时，圆柱滚子的批量直径偏差从3 μ m降低到1 μ m，批量一致性令人满意。无心磨削在轧辊表面产生的加工痕迹被完全去除，表面质量得到显著提高。抛光后的表面粗糙度达到Ra 16 nm。上下陶瓷板有一定的磨损，但磨损量较小，对加工效果影响不大。加工后的轧辊形状精度和批量一致性令人满意。该陶瓷板硬度高、耐磨性好，在加工过程中磨损小。此外，它可以长时间保持极高的平整度。采用硬质陶瓷板加工圆柱滚子，加工后可获得高精度、高一致性的圆柱滚子。
In order to improve the accuracy and batch consistency of cylindrical roller machining, in this paper, a both-sides cylindrical roller machining method based on hard ceramic plate is proposed. Traditional cast iron and stainless-steel polishing plate were replaced by ceramic materials with high hardness and good wear resistance. After processing by centerless grinding, the cylindrical roller is processed by both-sides lapping and polishing using Al2O3 ceramic plates. The roundness, diameter and surface quality of the roller and the wear of the ceramic plate before and after machining were compared and analyzed in order to evaluate the feasibility and effectiveness of this method. After grinding for 1 h and polishing for 8 h, the average roundness of the cylindrical rollers decreased from the initial 2.3 μm to 0.32 μm, while the roundness of each roller tended to be the same. At the same time, the batch diameter deviation of cylindrical rollers was reduced from 3 μm to 1 μm, and the batch consistency was satisfactory. The machining marks produced by centerless grinding on the roller surface were completely removed, and the surface quality was significantly improved. The surface roughness after polishing reached Ra 16 nm. The upper and lower ceramic plate had certain wear, but the amount was small, having little impact on the machining results. The shape accuracy and batch consistency of the rollers after machining were satisfactory. The ceramic plate had high hardness, good wear resistance and small wear in the machining process. Additionally, it could maintain extremely high flatness for a long time. Using hard ceramic plates to process cylindrical rollers, high precision and high consistency cylindrical rollers can be obtained after machining.