Abstract
Temperature analysis based on temperature-dependence of thermal properties (specific heat and thermal conductivity) is carried out using numerical calculations. An explicit form of finite difference method was adopted; for constant thermal properties, target size effect is strong compared with the case where properties vary with temperature. For the same sizes, the target of properties varying with temperature is heated more rapidly than that whose properties are independent of temperature; for 2.08 mm radius and 1.06 mm thickness carbon steel, times required to raise the temperature at center point by 1 300 K by a beam of 1 kW power and 1 mm radius are 2.78 and 1.77 ms for the former and the latter, respectively. Under a fixed treatment time, isothermal planes extend more widely in the target whose properties depend on temperature than in that of constant properties. To obtain heat treatment conditions, the consideration based on temperature-dependence of thermal properties must be done.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Japan Society for Precision Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
