Influences of pulsed current tungsten inert gas welding parameters on the tensile properties of AA 6061 aluminium alloy

Influences of TIG welding parameters on tensile and impact behaviour of aluminium alloy joints: A Review

“…Helium and argon are specially used as shielding gases because they does not chemically react. The inert gas i) protect the welding area from air, prevent oxidation, ii) transfers the heat during welding iii) helps to start and maintain a stable arc due to low ionization potential [4]. Welding Of Aluminum Alloys Many industries which are involved in transportation like automobile industries primarily concerned on reduction of mass, which has become quite useful because of fuel saving, reduction of emission and recyclability.…”

“…From the experiment it is found that pulsed welding current improve the tensile behaviour of the weld compared with continuous current welding due to grain refinement occurring in the fusion zone. S T Kumar, V Balasubramanian, MY Sanavullah [4] studied medium strength aluminium alloy to check its tensile characterstics of AA 6061. Different combinations of welding parameters have been tested on 3 mm thick plate of aluminium alloy.…”

Optimizing Pulsed Current Micro Plasma Arc Welding Parameters to Maximize Ultimate Tensile Strength of SS304L Sheets Using Hooke and Jeeves Algorithm

“…This is because as the pulse on time increases, the period from the start of a pulse to the end of the base time also increases. When pulse width is increased, the welding heat has more time to conduct into the fusion zone, which promotes grain coarsening [21]. The grains in fusion zone get coarser, with increasing pulse on time and the ultimate tensile strength of these welded joints decreases.…”

“…Hooke and Jeeves method [21] is used to optimization tool to search the optimum values of the process variables. In this paper the algorithm is developed to optimize the pulsed current MPAW process variables.…”

Development of Al–Si–Zn–Sr filler metals for brazing 6061 aluminum alloy

“…Welding is necessary for these applications, and many methods have been introduced for 6061 alloy welding, such as laser welding [3], FSW (friction-stir welding) [4,5], GTA (Gas tungsten arc) welding [6,7], diffusion bonding [8] and resistance spot welding [9]. Brazing or soldering is a promising method for applications where a precisely bonded joint is required.…”