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Journal ArticleDOI

High-speed machining of aluminium alloy using vegetable oil based small quantity lubrication:

16 Jun 2020-pp 095440542092978
TL;DR: In an attempt to investigate the effectiveness of vegetable oil based small quantity lubrication in high-speed machining of aluminium, this paper found that its usefulness is more significant in an...
Abstract: In an attempt to investigate the effectiveness of vegetable oil based small quantity lubrication in high-speed machining of aluminium, this study finds that its usefulness is more significant in an...
Citations
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Journal ArticleDOI
TL;DR: The most important aspect of sustainability in manufacturing is the preservation of energy and natural resources as discussed by the authors , which can be achieved by increasing energy efficiency through low, clean, and renewable energy consumption.
Abstract: The most important aspect of sustainability in manufacturing is the preservation of energy and natural resources. For modern production, optimized processes that minimize negative impacts on the environment are becoming increasingly important. This can be achieved by increasing energy efficiency through low, clean, and renewable energy consumption. There are many ways to produce less pollution, emissions, and waste in machining: by using more environmentally friendly cooling methods; by applying methods that reduce or eliminate the need for utilization of cooling lubrication; improving the energy efficiency of machining operations; determining the optimal cutting conditions that save resources by increasing machining productivity or reducing the metal removal rate (MRR); minimizing power consumption; and reducing carbon dioxide emissions. This article gives an idea of modern manufacturing with a focus on analyzing the current state of machining operations in terms of saving production resources and ensuring more environmentally friendly production using greener cooling methods of machining such as Dry, Conventional cooling systems, Minimum quantity of lubricant (MQL), Minimum quantity of cooling lubrication (MQCL), Nanofluids, Biodegradable Vegetable Oils, Cryogenic Lubrication, and High-Pressure Cooling (HPC). Finally, the important modern trends of providing resource-saving and environmentally efficient technologies in modern sustainable manufacturing are discussed in this paper.

29 citations

Journal ArticleDOI
TL;DR: In this article, the performance of AA7075 T6 alloy with uncoated and MT-CVD TiCN-Al2O3-coated carbide inserts is evaluated with regard to tangential cutting force, tool tip temperature and depth of flank wear.
Abstract: The present study examines dry machining performance of AA7075 T6 alloy using uncoated and MT-CVD TiCN–Al2O3-coated carbide inserts. Machining performance is assessed with regard to tangential cutting force, tool tip temperature and depth of flank wear. The performance of coated tool is compared to that of uncoated insert. In addition, different modes of tool wear and chip morphology are studied in detail. It is experienced that coated tool causes lower tool tip temperature and lesser flank wear than untreated counterpart. Apart from abrasion, adhesion and built-up layer formation; attrition wear is distinctly visible in case of uncoated tool. On the contrary, in addition to common wear modes, coated tool also experiences diffusion wear.

8 citations

Journal ArticleDOI
TL;DR: In this article, the authors investigated tribo-phenomena at sliding interface of Al2124-17SiCp disc and WC-6Co pin and explored suitability of nano-oil aerosols as lubricants.

7 citations

Journal ArticleDOI
TL;DR: In this article , the effects of strontium (Sr) and magnesium (Mg) elements in certain rates added to Al-9Si alloy manufactured using permanent mold casting technique on the structural, mechanical, and machinability properties of these alloys were investigated.
Abstract: In this study, the effects of strontium (Sr) and magnesium (Mg) elements in certain rates added to Al-9Si alloy manufactured using permanent mold casting technique on the structural, mechanical, and machinability properties of these alloys were investigated. While microstructural images of the alloys were obtained with an optical microscope, hardness, tensile strength, and elongation to fracture were determined by conventional methods. The resultant cutting force (F) and average surface roughness (Ra) were measured as experimental outputs in the turning process. It was observed that Al-9Si alloy comprised of α-Al, eutectic Al-Si, β, and primary Si phases. The addition of Sr to the Al-9Si alloy led to the formation of the Al4Sr phase and the transformation of the β phase into the δ phase. The addition of Mg to Al-9Si-0.1Sr alloy caused the δ phase to transform into the π phase. The hardness of the tested alloy increased significantly with the Mg addition. The yield strength and tensile strength of them increased with both Sr and Mg additions. On the other hand, elongation to fracture value of the Al-9Si alloy increased with Sr addition while it decreased with the Mg addition. The F and Ra values obtained from the Al-9Si alloy increased with Sr addition in the turning process while decreased with Mg addition. The results obtained from turning tests were discussed based on the mechanical properties of alloys.

3 citations

References
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Journal ArticleDOI
TL;DR: In this paper, a detailed analysis and adaptation of cutting parameters, cutting tools, machine tools and the production environment is mandatory to ensure an efficient process and successfully enable dry machining.

812 citations

Journal ArticleDOI
TL;DR: In this article, minimum quantity lubrication (MQL) was provided with a spray of air and vegetable oil to reduce the cutting zone temperature enabling favorable chip formation and chip-tool interaction.

402 citations

Journal ArticleDOI
TL;DR: In this article, the role of MQL on cutting temperature, chip formation and product quality in turning AISI-1040 steel at different industrial speed-feed combinations by uncoated carbide insert was investigated.

314 citations

Journal ArticleDOI
TL;DR: In this paper, the applicability of vegetable oil-based metalworking fluids in machining of ferrous metals has been investigated and its performances with respect to the cutting force, surface finish of work piece, tool wear and temperature at the cutting zone have been investigated.
Abstract: The increasing attention to the environmental and health impacts of industrial activities by governmental regulations and by the growing awareness level in the society is forcing industrialists to reduce the use of mineral oil-based metalworking fluids as cutting fluid. Cutting fluids have been used extensively in metal cutting operations for the last 200 years. In the beginning, cutting fluids consisted of simple oils applied with brushes to lubricate and cool the machine tool. As cutting operations became more severe, cutting fluid formulations became more complex. There are now several types of cutting fluids in the market and the most common types can be broadly categorized as cutting oils or water-miscible fluids. In this review, the applicability of vegetable oil-based metalworking fluids in machining of ferrous metals has been undertaken. The advantages of metalworking fluids and its performances with respect to the cutting force, surface finish of work piece, tool wear and temperature at the cutting zone have been investigated. It has been reported in various literature that metalworking fluids, which are vegetable oil-based, could be an environmentally friendly mode of machining with similar performance obtained using mineral oil-based metalworking fluids.

302 citations

Journal ArticleDOI
TL;DR: In this article, the effect of different lubricant environments when 6061 aluminium alloy is machined with diamond-coated carbide tools was analyzed with respect to the cutting forces, surface roughness of the machined workpiece and tool wear.

198 citations