EFFECT OF INSERT DEPTH OF TOOL ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF DISSIMILAR METAL LAP JOINTS OF AL AND STEEL BY FRICTION STIR WELDING

摘要

A way to affect the morphology and distribution of IMC layer has been introduced in this study. This is achieved by increasing the insert depth of tool. The emergence of heavy lamellar IMC layer at the interface has been prohibited by the stir behavior of tool. The typical joint was produced and characterized,