A novel approach of applying copper nanoparticles in minimum quantity lubrication for milling of Ti-6Al-4V

Abstract

Presently, nanoparticles are mixed into lubricants to enhance the lubricating and cooling properties. Some research works are available on minimum quantity lubrication (MQL) machining performance of nanofluids suspended with MoS2, Al2O3 and xGnP nanoparticles. However, the deficiency has been found in applying of metal particles like copper (Cu) nanoparticles. In this research, nanofluids have been prepared by mixing four types of nanoparticle (Cu, Graphite, MoS2 and Al2O3) into natural-77 vegetable oil with two concentrations (1 % and 2 %). Taguchi's orthogonal array has used for experimental design. The machining performance of nanofluids are evaluated with regard to the reduction in cutting force and surface roughness during MQL milling of Ti-6Al-4V alloys. Analysis of variance (ANOVA) has carried out to investigate the relative influence of machining parameters. From the analysis, Cu and Graphite nanoparticles have shown higher effects for reducing cutting force and surface roughness. The results of ANOVA have shown that the type and concentration of nanoparticles influence the cutting force significantly. The confirmation tests have carried out and found that copper-nanofluid reduced cutting force and surface roughness by 8.84 % and 14.74 %, respectively. Graphite-nanofluid reduced cutting force and surface roughness by 5.51 % and 21.96 %, respectively.

Metal-containing nanomaterials as lubricant additives: State-of-the-art and future development

“…Metallic NPs have unique chemical and physical properties as lubricant additives [59][60][61][62][63][64][65][66][67][68][69][70][71]. Nano-metals with low shear stress, high extension, and low melting point have been used as FMs owing to their excellent friction-reducing, anti-wear, and self-repairing ability.…”

“…Nano-metals with low shear stress, high extension, and low melting point have been used as FMs owing to their excellent friction-reducing, anti-wear, and self-repairing ability. Among metallic NPs, Cu-containing nanolubricants have received particular attention owing to their remarkable properties [59][60][61][62][63][64][65][66][67][68][69][70][71]. Copper NPs usually have small particle size, low melting point, and the desired ductility; therefore, they are well perceived as an excellent AW and EP agent in comparison with similar products [72,73].…”

Multi-objective optimization of hard milling process of AISI H13 in terms of productivity, quality, and cutting energy under nanofluid minimum quantity lubrication condition

“…9 Furthermore, nanofluids also can improve the surface roughness, reduce the cutting force, lower friction, and increase tool wear resistance. [10][11][12][13][14][15][16] However, the research on the machining performance of hardened steel with different hardness with application of nanofluids MQL has not been addressed intensively. Therefore, we focus the study on the hard milling process with nanofluid MQL condition.…”

Modeling and optimization of machining parameters in milling of INCONEL-800 super alloy considering energy, productivity, and quality using nanoparticle suspended lubrication

“…23–26 Furthermore, the addition of nanoparticles into the cutting fluid also increases the surface quality, lessens the cutting force, diminishes friction between two contact surfaces, and extends the tool life. 27–32 Therefore, this work focuses on using the MQL technique enhanced by nanoparticle suspended lubrication when end milling a new nickel-based alloy.…”