Abstract
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 el. 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.
| Original language | English |
|---|---|
| Pages (from-to) | 87-95 |
| Number of pages | 9 |
| Journal | American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD |
| Volume | 361-364 |
| Issue number | 4 |
| Publication status | Published - 1998 |
| Externally published | Yes |
ASJC Scopus subject areas
- Mechanical Engineering
- Fluid Flow and Transfer Processes