NDLI: A Fracture Mechanics Approach to the Prediction of Tool Wear in Dry High Speed Machining of Aluminum Cast Alloys: Part 2

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Bardetsky, Alexander Attia, Helmi Elbestawi, Mohamed
Copyright Year	2005
Abstract	Experimental study has been carried out to establish the effect of cutting conditions (speed, feed, and depth of cut) on the cutting forces and time variation of carbide tool wear data in high-speed machining (face milling) of Al-Si cast alloys that are commonly used in the automotive industry. The experimental setup and force measurement system are described. The test results are used to calibrate and validate the fracture mechanics-based tool wear model developed in Part 1 of this work. The model calibration is conducted for two combinations of cutting speed and a feed rate, which represent a lower and upper limit of the range of cutting conditions. The calibrated model is then validated for a wide range of cutting conditions. This validation is performed by comparing the experimental tool wear data with the tool wear predicted by calibrated cutting tool wear model. The prediction errors were found to be less then 7%, demonstrating the accuracy of the object oriented finite element (OOFE) modeling of the crack propagation process in the cobalt binder. It also demonstrates its capability in capturing the physics of the wear process. This is attributed to the fact that the OOF model incorporates the real microstructure of the tool material.
Sponsorship	Tribology Division
Starting Page	173
Ending Page	179
Page Count	7
File Format	PDF
ISBN	0791842339
DOI	10.1115/IMECE2005-80640
e-ISBN	0791837696
Volume Number	Tribology
Conference Proceedings	ASME 2005 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2005-11-05
Publisher Place	Orlando, Florida, USA
Access Restriction	Subscribed
Subject Keyword	High speed machining Al-si alloys Fracture mechanics modeling Tool wear Fracture mechanics Aluminum Wear Alloys Calibration Modeling
Content Type	Text
Resource Type	Article

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