NDLI: On the Volumetric Assessment of Tool Wear in Machining Inserts With Complex Geometries: Need, Methodology and Validation

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Mathew, A. Kuttolamadom Mears, M. Laine
Copyright Year	2011
Abstract	The objective of this paper is to qualitatively assess the inadequacies of the current manner of tool wear quantification and consequently to suggest/develop a more comprehensive approach to machining tool wear characterization. Traditional parameters used for tool wear representation such as flank and crater wear are no longer self-sufficient to satisfactorily represent the wear of the complex geometric profiles of more recent cutting tools. These complexities in tool geometries are all the more pronounced when catering to difficult-to-machine materials such as titanium and its alloys. Hence, alternatives to traditional tool wear assessment parameters are briefly explored and a suitable one is selected, that will help understand the very nature of the evolving wear profile itself from a three dimensional standpoint. The assessment methodology is further developed and standardized and suggestions for future use and development provided. The measurement system is evaluated using a gauge repeatability and reproducibility (R&R) study as well. The method is deployed for assessing tool wear during the machining of Ti-6Al-4V at selected process conditions for validation purposes. Further, concepts such as the M-ratio and its derivatives are developed to quantify the efficiency of the cutting tool during each pass as a function of time at a theoretically constant material removal rate (MRR).
Sponsorship	Manufacturing Engineering Division
Starting Page	313
Ending Page	322
Page Count	10
File Format	PDF
ISBN	9780791844311
DOI	10.1115/MSEC2011-50278
Volume Number	ASME 2011 International Manufacturing Science and Engineering Conference, Volume 2
Conference Proceedings	ASME 2011 International Manufacturing Science and Engineering Conference
Language	English
Publisher Date	2011-06-13
Publisher Place	Corvallis, Oregon, USA
Access Restriction	Subscribed
Subject Keyword	Titanium M-ratio Machining Tool wear Volumetric wear Machine tools Wear
Content Type	Text
Resource Type	Article

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