Performance and mechanisms of graphene oxide suspended cutting fluid in the drilling of titanium alloy Ti-6Al-4V. (October 2017)

• Record Type: Journal Article
• Authors: Yi, Shuang; Li, Guangxian; Ding, Songlin; Mo, John
• Is Part Of: Journal of manufacturing processes. Volume 29(2017)
• Page Start: 182
• Page End: 193
• Publication Date: 2017-10
• Subjects: Titanium alloy -- Graphene oxide -- Holes quality -- Tool wear -- Chips -- Drilling; Production management -- Data processing -- Periodicals; Manufacturing processes -- Periodicals; Procestechnologie; Productietechniek; Production -- Gestion -- Informatique -- Périodiques; Fabrication -- Périodiques; Manufacturing processes; Production management -- Data processing; Periodicals; 670.5
• DOI: 10.1016/j.jmapro.2017.07.027
• Languages: English
• ISSNs: 1526-6125

Abstract

Graphical abstract: Efficient of chip morphology under conventional coolant and graphene oxide suspended fluid. It obviously resulted in two different types of chips formation, which are the spiral chip and string chip. Highlights: Graphene oxide powder improved the lubrication in drilling Ti-6Al-4V. When graphene oxide suspended fluid was applied, the quality of hole surface became better. Different coolants would result in the formation of different types of chips. The reduction in cutting force was up to 17.21% when graphene oxide suspended fluid was applied. Abstract: Titanium and its alloys are difficult to machine due to their high chemical reactivity and poor thermal conductivities. One of the key challenges in machining titanium components is the making of high-quality holes which is driven by the demands from aerospace industry. This paper is focused on drilling titanium alloy (Ti-6Al-4V) with a new graphene oxide suspended cutting fluid. A series of cutting experiments were conducted to investigate the effects and working mechanisms of the new fluid. Thermal conductivities of conventional coolant and the graphene oxide suspended fluid was measured; the effects of different cutting parameters such as cutting speed and feed rate were analysed; thrust force, surface roughness, tool wear and the formation and morphology of chips were discussed. To investigate the performance of graphene oxide suspended cutting fluid, similar experiments were conducted with conventional coolant as well. A significant reduction in cutting force of up to 17.21% and a dramatic improvement in surface roughness of 15.1% were achieved by using the new graphene oxide suspended cutting fluid.