TY - GEN
T1 - An Improved Transient Model of Tool Temperatures in Metal Cutting
AU - Jen, Tien Chien
AU - Anagonye, Aloysius U.
N1 - Publisher Copyright:
© 1998 American Society of Mechanical Engineers (ASME). All rights reserved.
PY - 1998
Y1 - 1998
N2 - A model for predicting cutting tool temperatures under transient conditions is presented. The model of Stephenson et. al (1997) is extended to include the initial transient response to the tool temperature, non-uniform heat flux distributions and the convective cooling due to the use of coolant. The main goal in this paper is to be able to accurately predict the initial transient tool temperature response, or temperatures in interrupted cutting for cases where the cutting time is short. A method to predict the true transient energy partitioning instead of quasi-steady energy partitioning (Stephenson et. al, 1997), without seeking the full numerical analysis, has been developed. In this paper, the transient energy partitioning is obtained through a fixed-point iteration process by modifying the quasi-steady energy partitioning method presented by Loewen and Shaw (1954). The predicted transient tool temperatures are compared quantitatively to the experimental data. Utilizing a semi-empirical correlation for heat flux distribution along the tool-chip interface, the temperature distribution is calculated and compared qualitatively to existing experimental data.
AB - A model for predicting cutting tool temperatures under transient conditions is presented. The model of Stephenson et. al (1997) is extended to include the initial transient response to the tool temperature, non-uniform heat flux distributions and the convective cooling due to the use of coolant. The main goal in this paper is to be able to accurately predict the initial transient tool temperature response, or temperatures in interrupted cutting for cases where the cutting time is short. A method to predict the true transient energy partitioning instead of quasi-steady energy partitioning (Stephenson et. al, 1997), without seeking the full numerical analysis, has been developed. In this paper, the transient energy partitioning is obtained through a fixed-point iteration process by modifying the quasi-steady energy partitioning method presented by Loewen and Shaw (1954). The predicted transient tool temperatures are compared quantitatively to the experimental data. Utilizing a semi-empirical correlation for heat flux distribution along the tool-chip interface, the temperature distribution is calculated and compared qualitatively to existing experimental data.
UR - http://www.scopus.com/inward/record.url?scp=85119680880&partnerID=8YFLogxK
U2 - 10.1115/IMECE1998-0693
DO - 10.1115/IMECE1998-0693
M3 - Conference contribution
AN - SCOPUS:85119680880
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 87
EP - 95
BT - Heat Transfer
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 1998 International Mechanical Engineering Congress and Exposition, IMECE 1998
Y2 - 15 November 1998 through 20 November 1998
ER -