Abridged version: In view of the demands made by the end users in the field of application of vehicle construction for an ever-higher product quality and improved performance, continuous innovations are considered to be absolutely decisive for being successful. This especially applies to the welding technology, and therefore the goal is to develop new, better and more powerful welding processes...

Vacuum furnace has been used for brazing repair of aerospace components, but it is a slow process which typically takes few hours. The prolonged heating and cooling cycles could cause some adverse effects on the components such as excessive grain growth. A rapid technique using induction coil was studied to evaluate its suitability localized repair. Induction Inconel 718 carried out AMS 4777 pa...

The linear distortion of prostheses over implants, one-piece casting and cast in sections followed by laser welding by laser and brazing was evaluated in an edentulous mandibular model with five parallel abutments, with a distance of 10mm from center to center. Seventy five gold cylinders were tightened with screws on the abutments with 10Ncm torque. The cylinder/analogue assemblies were measur...

JULY 2012 50 High-temperature solder alloys are extensively used in dieattach, power semiconductor, and optical device packaging, flip-chip packaging, etc. Current industry standard solders for these applications are mainly high-lead solders (90–97 wt-% Pb) and gold-based eutectic solder alloys such as the 80Au20Sn solder. The die-attach process involves connecting the silicon die or chips to a...

The control of metal wettability is a key-factor in the field of brazing or welding-brazing. The present paper deals with the numerical simulation of the whole phenomena occurring during the assembly of dissimilar alloys. The study is realized in the frame of potential applications for the aircraft industry, considering the case of the welding-brazing of aluminum Al5754 and quasi-pure titanium ...

Ti3SiC2 ceramic and copper were successfully vacuum brazed using Ag-Cu-Ti filler with mesh, respectively. In this study, the effects of mesh brazing parameters on interface microstructure mechanical properties joints systematically studied. The results revealed that typical interfacial joint was ceramic/Ti5Si3 + TiC Ti2Cu Ti3Cu/Ag (s, s) Cu s)/eutectic Ag-Cu TiSiCu/Cu. A maximum shear strength ...

Joints of complex phase 780 (CP-780) advanced high strength steel (AHSS) were carried out by using an ER-CuAl-A2 filler metal for the gas arc welding pulsed brazing (GMAW-P- brazing) process and ER-80S-D2 GMAW-P employing two levels heat input. The phases in weld bead HAZ analyzed, evaporation zinc means scanning electron microscopy (SEM) was also monitored. mechanical properties welded joints ...