Huabin Chen

TL;DR: In this article, the typical welding defects of friction stir welding joint for 5456 aluminum alloy were analyzed and discussed, respectively, by using optical microscopy (OM), energy-dispersive X-ray spectroscopy (EDS), and scanning electron microscope (SEM).

TL;DR: In this paper, the authors conducted a comprehensive study on the cracking behavior by using optical microscope (OM), scanning electron microscopy (SEM), energy dispersion spectrum (EDS), electron backscatter diffraction (EBSD), X-ray diffraction(XRD), and differential scanning calorimetry (DSC).

TL;DR: In this paper, a portable spectrometer based on a linear CCD is designed with real-time acquisition and processing of spectral data in the welding process of aluminum alloys, which extracts several characteristic spectral lines and calculates the intensity ratio between H I and Ar I.

TL;DR: In this article, an underwater friction stir welding is carried out in order to reduce heat input comparing with traditional friction-stir welding and further improve the joint performances by varying welding temperature history by comparing the thermal cycle curves and distribution of residual stress of the plate welded in different media.

TL;DR: In this paper, a set of automatic measurement and control system have been proposed to achieve real-time arc length control via audio sensing system, which is essential to realize the welding penetration control during gas tungsten arc welding of arc length.