An important metallurgical difficulty in arc welding of high-strength aluminum alloys is
formation of solidification cracking. In this work, an attempt is made to reduce the
solidification cracking in welding of aluminum alloys through vibratory treatment. The
material used for the investigation is AA2014 aluminum alloy, which is highly prone to
solidification cracking. Vibratory treatment was carried out in the frequency range of 100
Hz to 3700 Hz. Weldments made with and without vibratory treatment were compared using
weld cracking tests and other characterization tests such as microstructural analysis. The
test results show that by applying vibratory treatment, solidification cracking can be
largely controlled in arc welding.