NDLI: A Methodology to Determine Work Material Flow Stress and Tool-Chip Interfacial Friction Properties by Using Analysis of Machining

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	O¨zel, Tug˘rul Zeren, Erol
Copyright Year	2004
Abstract	In this paper, we develop a methodology to determine flow stress at the machining regimes and friction characteristics at the tool-chip interface from the results of orthogonal cutting tests. We utilize metal cutting analysis originally developed by late Oxley and present some improvements. We also evaluate several temperature models in calculating the average temperatures at primary and secondary deformation zones and present comparisons with the experimental data obtained for AISI 1045 steel through assessment of machining models (AMM) activity. The proposed methodology utilizes measured forces and chip thickness obtained through a basic orthogonal cutting test. We conveniently determine work material flow stress at the primary deformation zone and the interfacial friction characteristics along tool rake face. Calculated friction characteristics include parameters of the normal and frictional stress distributions on the rake face. Determined flow stress data from orthogonal cutting tests is combined with the flow stress measured through split-hopkinson pressure bar (SHPB) tests and the Johnson-Cook work material model is obtained. Therefore, with this methodology, we extend the applicability of Johnson-Cook work material model to machining regimes.
Sponsorship	Applied Mechanics Division
Starting Page	529
Ending Page	537
Page Count	9
File Format	PDF
ISBN	0791847020
DOI	10.1115/IMECE2004-59176
Volume Number	Applied Mechanics
Conference Proceedings	ASME 2004 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2004-11-13
Publisher Place	Anaheim, California, USA
Access Restriction	Subscribed
Subject Keyword	Cutting Temperature Deformation Friction Metal cutting Machining Steel Flow (dynamics) Pressure Stress
Content Type	Text
Resource Type	Article

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