Study on the behavior of the minimum quantity lubricant - MQL technique under different lubricating and cooling conditions when grinding ABNT 4340 steel
By Leonardo Roberto da Silva, E. Bianchi, R. E. Catai, R. Y. Fusse, T. França, P. Aguiar. 2005
136 citations recorded by the source corpus.
Energy consumption, air pollution and industrial waste have received special attention from public authorities in recent years. The environment has become one of the most important subjects in the context of modern life, for its deterioration impacts the quality of life populations. Driven by pressure from environmental agencies, politicians have drawn up ever stricter laws aimed at protecting the environment and preserving energy resources. All these factors have led industry, research centers and universities to focus their efforts on researching alternative production processes, creating technologies to minimize or avoid the production of environmentally aggressive residues. Up to a few years ago, the main objective of manufacturing plants was to produce goods aimed at satisfying technological and economic aspects. Green, or "dry" machining and Minimum Quantity Lubricant (MQL) machining have caught the attention of researchers and technicians in the area of machining as an alternative to traditional fluids. Thus, this work proposes to explore the MQL concept in the grinding operation. Although its advantages allow one to predict a growing range of applications for MQL, the variables of influence to be considered and the effects on the results of the process have so far been little studied. Grinding involves several input parameters but, to date, little attention has been focused on the form and quantity of cutting fluid applied to the process. The condition and rate of cutting fluid applied directly influences some of the process's output variables. This work, therefore, analyzes the behavior of the MQL technique under different lubrication and cooling conditions, developing an optimized fluid application methodology based on the creation of a special nozzle through which a minimum amount of oil is pulverized in a compressed air stream. The evaluation of the technical performance of MQL in grinding, using aluminum oxide and superabrasive CBN (cubic boron nitride) grinding wheels, consisted of an experimental analysis of the behavior of the tangential cutting force, G ratio, roughness and residual stress. The results presented herein allowed us to evaluate the behavior of the MQL technique in the grinding process, thus contributing toward an environmentally friendly technology.
Subfields: Electrical and Electronic Engineering, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/79d1b84e4a813f1e0e860ace9ce7fdf1cbc97899
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In Electrical and Electronic Engineering
In Mechanical Engineering
Citations in the corpus
- Specific grinding energy and surface roughness of nanoparticle jet minimum quantity lubrication in grinding (2015, background): “Silva et al.16 studied the surface completeness, specific grinding energy, and grinding wheel wear under dry grinding, flood grinding, and MQL conditions.”
- A critical assessment of lubrication techniques in machining processes: a case for minimum quantity lubrication using vegetable oil-based lubricant (2013, unknown): “…et al, 2006, Su et al., 2006, Liao and Lin, 2007, Jun et.al., 2008; Fratila, 2009; Fratila & Caizar, 2011); grinding ( Baheti et al., 1998, Hafenbraedl and Maikin, 2000; Silva et al., 2005; Li and Chou, 2010; Tawakoli et al., 2011, Tawakoli et al., 2010a,b; Tawakoli et al., 2009; Shen, 2008).”