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High-Bandwidth Thermal Microscopy of the Tool-Chip Interface during Orthogonal Machining of AISI 4140 Steel

Published

Author(s)

April L. Cooke, Matthew A. Davies

Abstract

Temperature distributions produced at the tool-chip interface were determined for AISI 4140 while undergoing orthogonal cutting operations on a Makino A-55 machining cen-tre (20 thousand RPM/18.5 kW spindle), which was configured as a lathe. Dynamic thermal images were captured by a custom, high-bandwidth (40 Megapixels/sec) and calibrated microthermometry system (~5-micrometer resolution) for a wide variety of machining parameters reaching surface speeds of up to 477 m min-1. Each test was compared with finite element models, and despite modest uncertainty estimates, it is il-lustrated that while simulation software is a reliable means of predicting qualitative trends with respect to cutting parameters, it is not in this case a reliable means for quan-titative prediction of temperatures and temperature profiles.
Proceedings Title
Proceedings of the 12th CIRP Conference on Modelling of Machining Operations
Conference Dates
May 7-8, 2009
Conference Location
San Sebastian
Conference Title
12th CIRP Conference on Modelling of Machining Operations

Keywords

Finite Element Modeling, Thermal Microscope, Temperature Measurement

Citation

Cooke, A. and Davies, M. (2009), High-Bandwidth Thermal Microscopy of the Tool-Chip Interface during Orthogonal Machining of AISI 4140 Steel, Proceedings of the 12th CIRP Conference on Modelling of Machining Operations, San Sebastian, -1 (Accessed April 16, 2024)
Created May 7, 2009, Updated February 19, 2017