Laser–arc hybrid welding (LAHW) is an advanced method that combines arc and laser can achieve deep penetration the reduction of deformation compared with conventional welding. As other techniques, it common to target flat position (PA) as position. However, expansion applicable positions enables application high-quality welded joints fabricated by LAHW many in large steel structures. This study...

Abstract The development of ultra-high-strength steels (UHSS) is revolutionizing its need in the diverse field application, and main credit going to new technological advancement manufacturing using special heat treatment like thermomechanical rolled process produce UHSS with up 1300 MPa tensile strength thicker plate. steel provides higher strength, toughness, extensive reduced weight, signifi...

The variety of vision inspection systems for welding defects in the present manufacturing scenario is needed for overcoming certain limitations such as the problem of inaccuracy in the images, non-uniformed illumination, noise and deficient contrast, and confusion in defects if they occur in the same spot at the surface and subsurface. Hence, it is imperative to design a new vision inspection s...

Abstract An analytical method for determination of a stress condition butt welded thin-gauge plates with asymmetrical reinforcement is developed. The proposed allows take into account the effect load application eccentricity on tensile concentration factor (SCF) in weld root zone. It presented that bending stresses, caused by this eccentricity, result increasing total stresses up to 75%. result...

The thickness of steel plates used in the structure has gradually increased to meet load-bearing capacity requirements long-span bridges. Thick plate welded by arc welding process will result considerable residual stress with complex distribution. Large significantly impact performance At present; thick is not considered enough bridge engineering; which could lead potential dangers safety. In t...