ALUMINIUM MIG WELDING

Anssi Koponen & Mikko Hoffren

Contents

MIG Welding

Aluminium

Aluminium Welding

MIG

Stands for Metal Inert Gas welding Originally developed for welding

aluminium and non-ferrous materials The wire feed unit supplies the

electrode/additive to the work, driving it through the conduit and on to the contact tip

Protective gas used in the welding process is inert, such as argon or helium

Welding pistol

Aluminium

Aluminum is relatively soft, durable, ductile and light weight metal

Because of the face-centered cubic structure of aluminum it is very resilient in all temperatures

Aluminum has excellent formability both hot and cold

Aluminium has a strong tendency to form an oxidized coating

Aluminium Welding

The use of solventic flux and the usage of protective gas in the welding of aluminum is a must

The aluminium requires preheating The pistol must be kept in a 10-15 degree

pushing angle Keep the pistol head at a 1/3 inch

distance from the object you are welding

Vertical fillet weld & Vertical fillet weld and open square preparation weld

Sources

Ammattikorkeakoulu Turku. Haettu 5. 11 2012 osoitteesta http://kehittaminen.turkuamk.fi: http://kehittaminen.turkuamk.fi/tmetso/x-files/materiaalitekniikka/Materiaaliryhm%C3%A4t%20-%20Alumiini.htm

Hautamäki Jari, V. p. (4. 11 2008). Noudettu osoitteesta publications.theseus.fi: http://publications.theseus.fi/bitstream/handle/10024/19715/jamk_1235736680_0.pdf?sequence=1

Kemppi Oy. (2012). Hitsausaapinen. Noudettu osoitteesta Kemppi: www.kemppi.com

Koivisto, K. (2010). Konetekniikan Materiaalioppi. Helsinki: Edita prima oy.

Mikko, H. (6. 10 2012). Kuvia Hitseistä. Miller, N. (2008, 5 16). Miller Millermatic MIG Welders -

Aluminum Welding. Retrieved from youtube : http://www.youtube.com/watch?v=V_MiGrL9350