Environmentally friendly manufacturing: Behavior analysis of minimum quantity of lubricant - MQL in grinding process

Silva, Leonardo R.; Corrêa, Elaine Carballo Siqueira; Brandão, Joel Romano; Ávila, R.F.

doi:10.1016/j.jclepro.2013.01.033

Cited by 125 publications

(45 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The inappropriate disposal of the cutting fluid is harmful to the environment, in addition, the cutting fluid is hazardous to the workers' health, e.g. the direct contact with the fluid may cause dermatological and respiratory diseases that can range from simple contact dermatitis to complicated cancer (Silva et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…In the last decades, the studies to reduce or eliminate the use of cutting fluid increased. Despite the many advantages, the cutting fluid presents serious economic and environmental problems (Tawakoli et al, 2010). Thru these studies, the Minimum Quantity of Lubricant was developed.…”

Section: Introductionmentioning

confidence: 99%

“…This technique applies the aerosol precisely directed to the contact zone (grinding wheel -workpiece). The aerosol is generated by the atomization process, where the cutting fluid is dispersed in small droplets and is carried by the jet of air (Tawakoli et al, 2010). This mist flies directly to the grinding wheel cutting surface, creating a thin layer of lubricant that provides the necessary lubrication during the cut.…”

Section: Introductionmentioning

confidence: 99%

“…The MQL system does not generate debris at the end of the process because it utilizes only a small quantity of fluid. The lubrication of the method is provided by the oil and the refrigeration by the compressed air (Silva et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Influence of water in the MQL technique in the grinding of steel AISI 4340 using CBN wheels

et al. 2018

View full text Add to dashboard Cite

Usually, machining employs cooling methods to avoid high temperatures. In most cases, the cutting fluid is applied with high flow and low pressures. This technique consumes a large amount of cutting fluid that causes serious problems in the environment and in the health of the worker. An alternative to the conventional cooling method is the Minimum Quantity of Lubricant. The MQL attempts to minimize the consumption of cutting fluid, which this study is about, whereby the reduction provided by this MQL was 99.99%. This technique consumes only the necessary quantity of cutting fluid to create a thin film of lubricant on the cutting surface grinding wheel. The MQL aerosol is injected with high pressure in the contact zone, efficiently lubricating the grinding process. However, the cooling effect of MQL is not enough to dissipate all heat produced during the grinding process. This study analyzes the improvement in the cooling effect caused by the addition of water in the MQL. The tests were done using different concentrations of cutting fluid in water, e.g. 1:0, 1:1, 1:3, 1:5 (oil:water). The experiment occurred on the external cylindrical plunge grinding with a vitrified cubic boron nitrite (CBN) grinding wheel, serving as the workpiece, the AISI 4340 quenched and tempered steel. The analyzed outputs were: surface roughness, roundness deviation, acoustic emission and vibration. . The results improved with the addition of water in the cutting fluid used in the MQL technique. The comparison with the MQL conditions showed that the best condition was the fluid with more water concentration. keywords: cylindrical grinding machining, Minimum Quantity of Lubricant with water, CBN grinding wheel, steel AISI 4340.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of water in the MQL technique in the grinding of steel AISI 4340 using CBN wheels

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Prolonged exposure to coolants used in grinding operations may lead to multiple diseases of the machine operator. They also contribute to high costs of grinding processes (Silva et al, 2013). For these reasons, more and more scientific research has been performed on grinding dry or with MQL (minimum quantity lubrication), also referred to as near dry grinding by means of an air-oil mixture.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of cooling and lubrication effects in plane grinding of AISI 304 steel

2018

Engineering Mechanics

View full text Add to dashboard Cite

Nowadays in grinding operations cooling and lubricating liquids are extensively used. Their application in many cases contributes to the lowering of the grinding temperature, energy consumption and improving surface quality. However, at the same time they pose a significant threat to the health of machine operators and contribute to the overall production costs. Therefore, there have been numerous attempts to eliminate or at least reduce their usage. In the presented investigation three methods of cooling and lubrication were used: with emulsion, minimum quantity lubrication (MQL) and grinding dry. The influence of these methods on the grinding force and surface roughness depended on the respective movements between the grinding wheel and workpiece and the selection of grinding speed. It was concluded that grinding dry of AISI 304 austenitic stainless steel leads to an increase of the grinding force whereas in MQL grinding the same force decreased. In the case of 304 steel the smallest values of surface roughness parameters appeared in MQL grinding compared to grinding dry and with emulsion.

show abstract

Dry and Near-Dry Machining Techniques for Green Manufacturing

Debnath

Reddy

Pramanik

2018

Materials Forming, Machining and Tribology

View full text Add to dashboard Cite

Environmentally friendly manufacturing: Behavior analysis of minimum quantity of lubricant - MQL in grinding process

Cited by 125 publications

References 17 publications

Influence of water in the MQL technique in the grinding of steel AISI 4340 using CBN wheels

Influence of water in the MQL technique in the grinding of steel AISI 4340 using CBN wheels

Experimental investigation of cooling and lubrication effects in plane grinding of AISI 304 steel

Dry and Near-Dry Machining Techniques for Green Manufacturing

Contact Info

Product

Resources

About