Sigrid Benfer

TL;DR: In this article, the joining of aluminum to steel was conducted by ultrasound enhanced friction stir welding (USE-FSW), which was introduced into one of the metal sheets by an ultrasonic roll seam module synchronously to the FSW-process.

TL;DR: In this paper, a hybrid welding system at the WKK of the University of Kaiserslautern was developed called Ultrasound Supported Friction Stir Welding (US-FSW) with the aim to shatter the brittle interlayer lines and to scatter fragments in the welding area during the FSW process.

TL;DR: In this paper, a modified FSW process was developed, which uses additionally submitted power ultrasound during the joining of the Al-cast and Mg-cast alloys with the aim to improve the stirring in the welded area and to eliminate the formation of brittle intermetallic phases as coherent layers which reduce the attainable strength of the joints.

TL;DR: In this article, the influence of power ultrasound introduction via USE-FSW on hybrid joints of industrially die-cast aluminum alloy EN AC-48000 (AlSi12CuNiMg) and magnesium alloy AZ91 (MgAl9Zn1) has been investigated.