Effect of tool/workpiece temperature and lubrication parameters on the rate of heat transfer under hot forging conditions

Project aim

Developing a methodology that could be used to give meaningful HTC data for FE models of hot forging processes

Project background

The rate of heat transfer between two elements in a system that have dissimilar temperatures is controlled by the heat transfer coefficient (HTC). The measurement of the heat transfer coefficient provides an important boundary parameter for the Finite Element modelling of hot forging (or any other hot working process) in which the workpiece and tool materials may have widely dissimilar temperatures. As such, it is important that the HTC can be accurately measured and represented in process models.