熱間転動摩耗試験の有限要素解析

抄録

Finite element analysis of 3D hot rolling wear test was performed. This test consists of two disks, one of which is Material disk made of hot rolled material and another is Roll disk made of the material for roll for hot rolling. These two disks contacts with certain load, and the certain relative sliding velocity is given by rotating each disk with prescribed rotation speed. Firstly, axisymmetric heating process of Material disk was performed in order that heated disk with appropriate distribution of temperature as well as deformation was prepared for 3D hot rolling wear test simulation. Although the induction heating is used in the actual setup, radiant heating process was applied in the simulation. Then, the 3D hot rolling wear test was performed. Heating of Material disk and cooling of Roll disk by water was calculated by heat transfer process between two objects. Wear depth of two disks was estimated by using Archard’s model-based equation. As a result, the change in temperature of Roll disk with contacting with Material disk and cooling by water was evaluated appropriately. For the wear depth, the value was around 100 times larger than that obtained by the corresponding experiment. That was due to incorrect parameter used in wear estimation equation. It was revealed that the comparison to the corresponding experiment was inevitable for further precise simulation.