Influence of Different Anvil Back Plates on Heat Dissipation Velocity of the Micro-Friction Stir Welding Process

摘要

The objective of this study is to investigate effects of different anvil back plates on heat dissipation velocity of the micro-friction stir welding (micro-FSW or μFSW) process. For this purpose, temperature field simulations are conducted for the micro-FSW of AA5083-H323 aluminum alloy thin sheets by using the ceramic anvil back plate and conventional steel anvil back plate, respectively. Comparing the obtained two temperature fields, it is found that the ceramic anvil back plate significantly decreases the heat dissipation velocity of the micro-FSW process.