Next Article in Journal
Thermal Growth of Graphene: A Review
Next Article in Special Issue
Improvement of Wear Performance of Nano-Multilayer PVD Coatings under Dry Hard End Milling Conditions Based on Their Architectural Development
Previous Article in Journal
Improved Corrosion Resistance of 5XXX Aluminum Alloy by Homogenization Heat Treatment
Previous Article in Special Issue
Titanium Aluminium Nitride and Titanium Boride Multilayer Coatings Designed to Combat Tool Wear
Article Menu
Issue 1 (January) cover image

Export Article

Open AccessArticle
Coatings 2018, 8(1), 38; doi:10.3390/coatings8010038

Cutting Performance of Low Stress Thick TiAlN PVD Coatings during Machining of Compacted Graphite Cast Iron (CGI)

1
Materials Research Laboratory, Kobe Steel Ltd., Kobe 651-2271, Japan
2
McMaster Manufacturing Research Institute (MMRI), Department of Mechanical Engineering, McMaster University, Hamilton, ON L8S 4L7, Canada
3
Department of Mechanical and Materials Science, Catholic University of Santa Catarina, Joinville, SC 89203-005, Brazil
4
Micro Materials Ltd., Wrexham LL13 7YL, UK
*
Author to whom correspondence should be addressed.
Received: 18 December 2017 / Revised: 6 January 2018 / Accepted: 13 January 2018 / Published: 18 January 2018
(This article belongs to the Special Issue Coatings for Cutting Tools)
View Full-Text   |   Download PDF [30713 KB, uploaded 18 January 2018]   |  

Abstract

A new family of physical vapor deposited (PVD) coatings is presented in this paper. These coatings are deposited by a superfine cathode (SFC) using the arc method. They combine a smooth surface, high hardness, and low residual stresses. This allows the production of PVD coatings as thick as 15 µm. In some applications, in particular for machining of such hard to cut material as compacted graphite iron (CGI), such coatings have shown better tool life compared to the conventional PVD coatings that have a lower thickness in the range of up to 5 μm. Finite element modeling of the temperature/stress profiles was done for the SFC coatings to present the temperature/stress profiles during cutting. Comprehensive characterization of the coatings was performed using XRD, TEM, SEM/EDS studies, nano-hardness, nano-impact measurements, and residual stress measurements. Application of the coating with this set of characteristics reduces the intensity of buildup edge formation during turning of CGI, leading to longer tool life. Optimization of the TiAlN-based coatings composition (Ti/Al ratio), architecture (mono vs. multilayer), and thickness were performed. Application of the optimized coating resulted in a 40–60% improvement in the cutting tool life under finishing turning of CGI. View Full-Text
Keywords: TiAlN thick coating; coating process deposition; coating architecture; machining of CGI; coating mechanical properties; FEM TiAlN thick coating; coating process deposition; coating architecture; machining of CGI; coating mechanical properties; FEM
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Yamamoto, K.; Abdoos, M.; Paiva, J.M.; Stolf, P.; Beake, B.; Rawal, S.; Fox-Rabinovich, G.; Veldhuis, S. Cutting Performance of Low Stress Thick TiAlN PVD Coatings during Machining of Compacted Graphite Cast Iron (CGI). Coatings 2018, 8, 38.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Coatings EISSN 2079-6412 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top