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Machinability improvement and sustainability assessment during machining of AISI 4140 using vegetable oil-based MQL
Journal of the Brazilian Society of Mechanical Sciences and Engineering ( IF 1.8 ) Pub Date : 2021-11-13 , DOI: 10.1007/s40430-021-03256-2
M. A. Makhesana 1 , J. A. Baravaliya 1 , R. J. Parmar 1 , B. K. Mawandiya 1 , K. M. Patel 1
Affiliation  

The ecological and economic problems associated with conventional cutting fluids can be resolved by identifying a sustainable and improved cooling/lubrication approach. The vegetable oil-based minimum quantity lubrication has a good amount of acceptability toward achieving sustainable and eco-friendly machining. This work investigates the efficacy of vegetable oil-based MQL (VMQL) and minimum quantity solid lubricant (MQSL) during turning AISI 4140 steel with coated carbide tools compared to dry and wet machining. Various sustainable aspects such as machining efficiency, total energy consumption, carbon emission, and various performance indicators such as surface roughness, chip–tool interface temperature, and tool life are evaluated under selected cooling/lubricating conditions. The experimental findings showcased the superiority of VMQL and MQSL in the form of improved machining performance compared to dry and wet machining. Noticeable reduction in surface roughness up to 27% and 20% at cutting speed 100 m/min and 45% and 41% at cutting speed 170 m/min is achieved with VMQL and MQSL, respectively. Furthermore, VMQL and MQSL reduced energy consumption by 33% and 28% at lower MRR and 26% and 22% at higher MRR, respectively, compared to dry machining. The results showcased the ability of VMQL in machining to achieve sustainability and energy-saving with improved product quality.



中文翻译:

使用基于植物油的 MQL 加工 AISI 4140 期间的可加工性改进和可持续性评估

与传统切削液相关的生态和经济问题可以通过确定可持续和改进的冷却/润滑方法来解决。基于植物油的微量润滑对于实现可持续和生态友好的加工具有良好的可接受性。这项工作研究了植物油基 MQL (VMQL) 和微量固体润滑剂 (MQSL) 在使用涂层硬质合金刀具车削 AISI 4140 钢时与干式和湿式加工相比的功效。在选定的冷却/润滑条件下评估各种可持续方面,例如加工效率、总能耗、碳排放和各种性能指标,例如表面粗糙度、切屑-刀具界面温度和刀具寿命。实验结果展示了 VQL 和 MQSL 的优越性,与干式和湿式加工相比,加工性能提高。使用 VQL 和 MQSL 分别实现了在切削速度 100 m/min 和切削速度 170 m/min 时表面粗糙度分别显着降低 27% 和 20% 和 45% 和 41% 的效果。此外,与干式加工相比,VMQL 和 MQSL 在较低的 MRR 和较高的 MRR 下分别降低了 33% 和 28% 的能耗,以及在较高 MRR 下的能耗分别降低了 26% 和 22%。结果展示了 VMQL 在加工中实现可持续性和节能并提高产品质量的能力。分别。此外,与干式加工相比,VMQL 和 MQSL 在较低的 MRR 和较高的 MRR 下分别降低了 33% 和 28% 的能耗,在较高 MRR 下分别降低了 26% 和 22%。结果展示了 VMQL 在加工中实现可持续性和节能并提高产品质量的能力。分别。此外,与干式加工相比,VMQL 和 MQSL 在较低的 MRR 和较高的 MRR 下分别降低了 33% 和 28% 的能耗,在较高 MRR 下分别降低了 26% 和 22%。结果展示了 VMQL 在加工中实现可持续性和节能并提高产品质量的能力。

更新日期:2021-11-13
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