Laser Welding Aluminum 6061

Metallurgical transactions b 1988.

Laser welding aluminum 6061.

I need to weld aluminum base alloy 6061 t6. Laser conduction welding lcw 10 6 w cm 2 is comparatively stable and may offer an alternative means of welding traditionally difficult materials such as aluminum alloys. Common aluminum problems questions and answers. What filler alloy should i use for welding this base material.

Peak power pulse duration pulse energy pulse repetition rate. Laser welding of 6061 t6 crack sensitive aluminium based alloy with pulse shaping pulsed laser material processing requires the optimization of many parameters depending on the thermo physical properties of the material the environment laser and its process parameters i e. The cover of a trumpf truflow laser resonator being laser welded in a laser welding cell in our farmington ct production facility. Fuerschbach on the weldability composition and hardness of pulsed and continuous nd yag laser welds in aluminium alloys 6061 5456 and 5086.

An aluminum alloy containing 5 percent magnesium 5356 generally is stronger and more ductile than 4043. Which filler wire is best for welding 6061 t6 aluminum 5356 or 4043. Laser welding is widely used to join aluminum and its alloys. Both are acceptable for welding 6061 t6 but each has advantages and disadvantages depending on the application.

1 thermal conductivity 2 surface reflectivity to infrared and near infrared laser radiation and 3 characteristics of the molten alloy including low viscosity and volatility of low boiling point alloying elements e g. Laser and electron beam welding of al alloys. In this paper dissimilar metal joints of 6061 aluminum alloy and aluminum matrix composite material are investigated by laser welding. Advances in laser keyhole welding and investigations into its accompanying difficulties are well documented in the literature.

Tib 2 particles were added into the lap joint. This question is characteristic of many that i receive on a regular basis. The effect of laser welding parameters surface cleaning filler wire addition and backing strip on quality of laser welded joints was clarified using. However aluminum poses difficulty in welding because of three main properties.

The welding process microstructure and the corrosion properties of welding joints are examined. The base alloy type in the question may vary but in essence the question remains the same. There are several different types of lasers that work well with aluminum and often the use of a cover gas is prudent. Laser beam welding can be used with crack sensitive materials such as the 6000 series of aluminum alloys when combined with an appropriate filler material such as 4032 or 4047 aluminum.