Wear mechanism and notch wear location prediction model in ball nose end milling of Inconel 718

M. S. Kasim, Che Hassan Che Haron, Jaharah A Ghani, M. A. Sulaiman, M. Z A Yazid

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

This study is an investigation of tool wear using a ball-type end mill. The primary purpose of this work is to examine the tool life and wear mechanism when machining Inconel 718 with a physical vapor deposition (PVD)-coated carbide tool and varying the cutting parameters. Notch wear and flaking near the depth of the cut zone were the predominant types of tool failure for the four round cutting tools and were initiated by pitting caused by the repetitive cyclic load. The major factor identified was the large radial depth of the cut. Further examination indicated that the dominant wear was located near the depth of the cut line. On the flank face, smooth and coarse wear types, from abrasion and attrition, occurred at low and high cutting speeds, respectively. A maximum temperature of 521. °C was recorded, which is less than the critical temperature of 650. °C for Inconel 718. A mathematical model was developed to predict the location of the pitting, which was responsible for notching and flaking. This location could then be used to calculate the location associated with the maximum load exerted during the cutting. The error between the predictive model of pitting and the actual notching/flaking was less than 6%.

Original languageEnglish
Pages (from-to)1171-1179
Number of pages9
JournalWear
Volume302
Issue number1-2
DOIs
Publication statusPublished - Apr 2013

Fingerprint

Inconel (trademark)
notches
flaking
balls
Wear of materials
pitting
Pitting
predictions
cyclic loads
Carbide tools
comminution
Cyclic loads
abrasion
Physical vapor deposition
Cutting tools
Abrasion
machining
carbides
mathematical models
critical temperature

Keywords

  • End milling
  • High-speed machining
  • Inconel 718
  • Notch wear
  • Prediction model
  • Wear mechanism

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Mechanics of Materials

Cite this

Wear mechanism and notch wear location prediction model in ball nose end milling of Inconel 718. / Kasim, M. S.; Che Haron, Che Hassan; A Ghani, Jaharah; Sulaiman, M. A.; Yazid, M. Z A.

In: Wear, Vol. 302, No. 1-2, 04.2013, p. 1171-1179.

Research output: Contribution to journalArticle

Kasim, M. S. ; Che Haron, Che Hassan ; A Ghani, Jaharah ; Sulaiman, M. A. ; Yazid, M. Z A. / Wear mechanism and notch wear location prediction model in ball nose end milling of Inconel 718. In: Wear. 2013 ; Vol. 302, No. 1-2. pp. 1171-1179.
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