Effects of wear characterization analysis of the friction stir welded joints in aluminum alloy Al3116-Cu and A384 - Cu

摘要

The wear is one of the principal problems in friction-stir welding (FSW) of different aluminum alloys. When two different metals are welded with FSW, various mechanical, metallurgy and chemical characteristics have been possessed in comparison to the base substances. For this reason, Wear performance is a major feature of the process of FSW. In this study, a 6.35 mm thickness of two dissimilar aluminum alloys as Al3116-Cu and A384-Cu have been chosen to expand a design matrix that produces welds that use the package of MINITAB-17. The pieces of Friction-stir- welded considered as test samples and the test are conducted on tensile strength of pieces. Abrasive resistance is analyzed for peak and minimal tensile strength samples and its findings were compared to abrasive resistance of the base metal. The dissimilar load of 25N, 50 N and 100 N were applied at 360 Seconds of constant time, 500 min~(-1) of constant RPM i.e., revolution per minute and 3.141 M/S of constant sliding speed to attain the results. As a result, it was detected that, under all the applied loads, the Wear of the FSW manufactured was lower in comparison to the Al3116-Cu and A384-Cu aluminum base metal. Conversely, the Wear of the weld is greater when compared with Al3116-Cu aluminum base metal.