Yes, we have a dedicated manufacturing cell with certified-welding personnel capable of welding aluminum, stainless steel, steel, and chem-treated steels, using both TIG and MIG welding centers.
http://www.allfabsolutions.com/faq.htm
Maybe this will help ARC is what you use to weld thick structural iron (not for detail stuff) TIG can be used for just about anything and is very expensive MIG is for car type work. You want MIG with Gas. Tip -- check with your local suppli...
http://www.shoptalkforums.com/viewtopic.php?t=79436&
In some cases it might be possible; if the particular dissimilar metals can be welded by any other means they could also be spot welded. You might need different size electrodes on each side of the joint to get a good spot weld.
http://wiki.answers.com/Q/Is_it_possible_to_spot_weld_d...
There are two kinds of spot welders on the US market today. The first type is an AC power unit with electric transformer built directly to a welding gun. The large suspended welder has an overhead boom and is liquid cooled. The second type ...
http://www.datawelder.com/spotwelders/FAQ/faq.html
There are 4 basic categories of plastic welding that are used for flexible products. There are other types but the one mentioned here are the most widely used.
http://www.seamtek.com/faq.htm
・ 1 Determine the best welding machine for your needs. ・ 2 Use a motor-generator welding machine in areas without electricity. These models run on electricity... ・ 3 Use an alternating current transformer machine for light industrial, garag...
http://www.ehow.com/how_2240647_use-different-types-wel...
Welding is a process of bonding two pieces of metal together by melting the points to be joined, along with a filler material, and then letting the joint cool. The filler material is called a welding alloy. There are many types of welding a...
http://www.wisegeek.com/what-are-the-different-types-of...