Quality of welded joint at MAG welding process depends of numbers of influences, like type and thickness of base metal, groove type, welding position etc., but the proper selection of welding parameters is also very important. Due to that, the analysis of weld bead geometry at MAG welding process with regard to weld current, voltage and weld speed (heat input) and the type and shielding gas flo...

This paper is a summary of master thesis written in the fall of 2015 in the department of Product Development in Jonkoping University in Sweden as a part of a research project with focus on the implementation and management of systems for design automation and design for manufacturing. It includes an implementation with the aim of enhancing a system currently in operation at an aerospace suppli...

Process monitoring is important for the laser welding system, especially for the weld seam deviation monitoring. A 10kW high power fiber laser butt joint welding of type 304 stainless steel was performed. By combing two different band pass filters, high speed photography was employed to capture the near-infrared images of molten pools. Image difference algorithm was used to obtain the weld seam...

The objective of this research is to develop an experimental-theoretical analysis about the 11 influence of the cooling medium and the geometry of the welding bead profile in fatigue life and 12 associated parameters with structural integrity of welded joints. A welded joint with cruciform 13 geometry is considered using SMAW, plates in structural steel ASTM A36 HR of 8 mm of 14 thickness and E...

The cold metal transfer (CMT) process is widely used in thin plate welding because of its characteristics low heat input and stable arc. In actual production, a larger weld gap, misalignment, or other problems due to assembly error lead serious defects, such as burn-through lack fusion. arc sound contains wealth information related the quality weld. This work analyzes mechanism CMT generation, ...

Electron Beam welding is becoming more important in Indian industries due to the growing automation of the process and superior weld quality, resulting from virtually zero heat affected zone (HAZ). Two main types of defects are often encountered in EB welding joints viz void type defects and crack type. EB welding joints must be radiographically inspected for all these types of defects and it i...