Shuaishuai Du

TL;DR: In this paper, an innovative welding technique, i.e., friction stir welding assisted by ultrasonic vibrations on the bottom surface of workpieces (UVBS-FSW), was proposed.

TL;DR: In this article, a tilt probe Penetrating Friction Stir Welding (PFSW) was used to remove the kissing bond in the root of a friction stir welded joint.

TL;DR: In this article, an equipment setup, consisting of a slide way, a pedestal, a stationary shoulder and a mounting platform, including two separate parts, has been developed to offer an insight into a friction stir welding technique.

TL;DR: In this paper, an ultrasonic enhanced friction stir welding (UFSW) was proposed as a strategy to broaden the process widening for achieving high-strength joints, and the results indicated that the tensile strength of UFSW joint only slightly fluctuated around 355-361 MPa, indicating a stable joint efficiency.

TL;DR: In this article, the formation mechanism of cavity defect, clarify the microstructure evolution in the weld and investigate the performance of TSFSW, which is capable of obtaining defect-free joint under higher welding speed by reducing the heat dissipation from weld bottom, thereby improving mechanical properties and widening the parameter range.