Effect of Cutting Fluids on the Flank Wear of High Speed and Carbide Tipped Cutting Tools

J Osarenmwinda

doi:10.4314/jasem.v18i2.2

Abstract

The major needs in machining are high material removal rate, good work surface finish and low tool wear. These objectives can be achieved by reducing tool wear using proper cutting fluid during machining.The effect of some cutting fluids namely: Mentholated spirit, paraffin, and soluble oil on the flank wear of High-speed steel and carbide tipped tools by orthogonal cutting has been studied. Cente lathe was used for cylindrical turning operated at a speed of 370rpm and depth of cut of 1mm to machine aluminum, brass, mild steel and medium carbon steel workpiece. It was observed that soluble oil with 20% water concentration gave minimum flank wear among the cutting fluids used. The flank wear were .0.002mm, 0.008mm, 0.009mm and 0.012mm for soluble oils, mentholated spirit, paraffin and dry machining respectively cutting fluid using high speed Steel cutting tool and Aluminum workpiece. For the workpiece, aluminum gave minimum tool flank wear, followed by brass. mild Steel and Medium Carbon Steel respectively. Carbide tipped tool also exhibited better flank wear resistance than High speed steel. Soluble oil gave the minimum flank wear and best surface finish for all workplace and so have the capacity to give a longer tool life when compared with other cutting fluid studied.Keywords: Flank wear, Cutting fluid, High speed steel, Carbide tipped tool, soluble oil.

Highlights

The correct selection and use of cutting fluids is one of the most important and often one of the cheapest factors in enhancing the performance of cutting tools (Timings, 1997)
This paper aims to determine the effect of cutting fluids on the flank wear of high-speed steel and carbide tipped cutting tools
Flank wear is a major form of tool wear in metal cutting.when machining using tools under typical condition, gradual wear of the flank of the flank is the main process by which a cutting tool fails ( Luo et al,2005; Haron,2001)

Summary

Introduction

The correct selection and use of cutting fluids is one of the most important and often one of the cheapest factors in enhancing the performance of cutting tools (Timings, 1997). The results indicated substantial reduction in tool wear when wet cooled turning was applied, which enhanced the tool life, Obi (1997) investigated the performance of local vegetable oils (i.e. ground-nut oil, palm oil, and cotton seed oil) as cutting fluid in orthogonal cutting of aluminum and brass using high speed steel cutting tool His result which was based on surface quality and reduction on chip compression ratio showed that groundnut oil performed better in the machining of. Emulsifying wax, ordinary washing soap and other additives Report shows that it compared favourably with the commercial soluble oil The former has a maximum deviation of 4.2% flank wear over the latter when machining operation was carried out with center lathe at a feed of 0.15mm/rev, and depth of cut of 02mm using medium carbon steel work piece and high speed steel cutting tool. The above procedure was repeated using carbide tipped cutting tool and the corresponding flank wear determined and recorded

RESULTS AND DISCUSSIONS

METHODOLOGY

Conclusions