2022 Volume 108 Issue 12 Pages 1021-1026
The purpose of this study is to develop a numerical model for the LFW process. In this paper, the numerical calculation model for the FSW process developed by the authors is applied to the LFW process. A small workpiece model was chosen as an initial model. The target materials are aluminum and SUS304, and it is assumed that the material softens due to heat generated by plastic strain at the sliding interface of the material.
As a result, it was possible to express the appearance of burrs being discharged to the end in the sliding direction due to the softening of the sliding system surface. It was also confirmed that the difference in the material property such as thermal conductivity had a great effect on the temperature rise characteristics inside the work. Furthermore, it was confirmed that the temperature of the interface fluctuates under the influence of the sliding frequency.
