A study on machinability of nickel based superalloy using micro-textured tungsten carbide cutting tools

M. Adam Khan, Kapil Gupta

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

In this research, an investigation on machinability of nickel-based superalloy (Inconel 600) under the influence of textured tungsten carbide cutting tools is conducted. Two main machinability indicators, namely, wear and life, have been investigated. Three types of micro-texture patterns i.e. dimples, lines and splines are laser engraved on the flank face of the cutting tool. Experiments are done with different cutting velocities, feed rate and depth of cut considering the texture pattern one among the input parameters. Firstly, while machining Inconel 600 with plain (non-textured) tungsten carbide cutting tool, it is investigated that at low velocity, the cutting nose caused damage due to abrasion and friction between the tool-chip interface. Severity in tool edge has increased along with adhesive wear and built-up edge at the cutting radius with increase in velocity. Thereafter, using textured on the tools, it is observed that the cutting tool wear resistance has tremendously increased with different textured patterns due to significant reduction in friction and heat. At low velocity (50 m min-1) the tool wear measured is in the range of 100-150 μm and maximum of 394 μm at high cutting velocity of 150 m min-1. The tool life was calculated using Taylor's equation based on Gaussian method. Tool lives for dimple and line textures are found superior. It is concluded that textured tools have potential to machine hard materials like Inconel superalloys with longer tool life.

Original languageEnglish
Article number016537
JournalMaterials Research Express
Volume7
Issue number1
DOIs
Publication statusPublished - 2019

Keywords

  • cutting tool
  • laser texturing
  • superalloy
  • tool life
  • tool wear
  • topography

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Metals and Alloys

Fingerprint

Dive into the research topics of 'A study on machinability of nickel based superalloy using micro-textured tungsten carbide cutting tools'. Together they form a unique fingerprint.

Cite this