High-Bandwidth Thermal Microscopy of the Tool-Chip Interface during Orthogonal Machining of AISI 4140 Steel
April L. Cooke, Matthew A. Davies
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 of the 12th CIRP Conference on Modelling of Machining Operations
May 7-8, 2009
12th CIRP Conference on Modelling of Machining Operations
Finite Element Modeling, Thermal Microscope, Temperature Measurement
and Davies, M.
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 June 4, 2023)