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首页> 外文期刊>Journal of Manufacturing Processes >Multi-objective optimization of MQL mist parameters for eco-friendly grinding
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Multi-objective optimization of MQL mist parameters for eco-friendly grinding

机译:ECO友好磨削MQL雾参数的多目标优化

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摘要

Nowadays, Minimum Quantity Lubrication (MQL) technique with eco-friendly groundnut oil is adopted in precision machining to tackle the operator health and environmental issues owing to petroleum based cutting fluid. The effectiveness of this technique depends on mixture quality of MQL mist. Hence, the objective of present work is to optimize the MQL mist parameters i.e. air pressure (P), flow rate (Q), and stand-off distance (d(s)) to minimize the effect of MQL based plunge grinding on hardened AISI H13 tool steel in terms of lowest grinding force, specific energy, grinding temperature, and surface roughness using grey relational analysis. Taguchi's L-16 orthogonal array was utilized for conducting the final experiments and mist parameters varied through four levels include P (2, 3, 4, and 5 bar), Q (50, 100, 150, and 200 L/h) and d(s) (40, 50, 60, and 70 mm). Further, experimental analysis was carried out to compare the effect of optimal and worst mist parameters on ground surface and microchip by using microhardness, scanning electron microscope, and atomic force microscopy. According to validation test, P: 4 bar, Q:200 mL/h, and d(s):50 mmare optimal mist parameters for multi-response variables of MQL grinding. Effective mist quality i.e. average droplet size of 51.03 mu m was obtained at nozzle angle of 12 degrees. Excellent ground surface quality with negligible microhardness variation and no wear tract microchip were observed under optimal mist setting.
机译:如今,采用了具有环保型面粉油的最小数量润滑(MQL)技术,精密加工采用,以解决经营者健康和环境问题,由于石油基础的切削液。该技术的有效性取决于MQL雾的混合质量。因此,本作工作的目的是优化MQL雾参数,即气压(P),流速(Q)和脱扣距离(D(S)),以最小化基于MQL基于淬火的AISI的PLONGE研磨的效果H13工具钢在最低磨削力,特定能量,磨削温度和表面粗糙度使用灰色关系分析方面。用于进行最终实验的Taguchi的L-16正交阵列,并且通过四个水平变化的最终实验和雾参数包括P(2,3,4和5巴),Q(50,100,150和200L / h)和d (s)(40,50,60和70 mm)。此外,进行了实验分析,以通过使用微硬度,扫描电子显微镜和原子力显微镜来比较地面和微芯片上的最佳和最差雾参数的影响。根据验证测试,P:4 BAR,Q:200 mL / h,D(s):50 mmare最佳雾参数,用于MQL研磨的多响应变量。有效的雾质,在12度的喷嘴角度下获得51.03μm的平均液滴尺寸。在最佳雾环境下观察到具有可忽略的微硬度变化和无磨损道微芯片的优异地面质量。

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