Product category:
Arc welding equipment, manual and automatic
News Release from: TPS-Fronius | Subject: Cold metal transfer welding of Al and steel
Edited by the Manufacturingtalk Editorial
Team on 06 October 2005
Welding marriage made of aluminium and
steel
Aluminium and steel are joined 'intrinsically' by the cold metal transfer process that has a lower heat application and thus considerably less thermal delay and rework.
Aluminium and steel are joined "intrinsically" Joining aluminium and steel has to date always been more of a mechanical process Now that Fronius has come up with a brand new welding technology, it's become an "intrinsic" metallurgical event
This article was originally published on Manufacturingtalk on 14 Jul 2008 at 8.00am (UK)
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Cold metal transfer pulsed arc welds CrNi steels
Successful tests have been carried out using cold metal transfer/pulsed arc welding on butt, overlapped, fillet, corner and flanged welds in 0.5-3.0mm thick CrNi steel and aluminum alloys.
CMT (cold metal transfer) is its name and arc welding the appropriate formula.
Although the CMT process for joining aluminium or steel has only been around a few months, it's already proven itself in the field.
It's the benefits of the 'cold' process in particular that are attracting all the attention: lower heat application and thus considerably less thermal delay and rework.
CMT can now offer the innovative ability to join aluminium and steel.
This process opens up a whole new range of opportunities in design and manufacturing.
It paves the way for a whole raft of creative new applications and intelligent solutions.
The first examples can already be seen in the automobile industry.
This high-tech sector is very keen to save fuel and reduce weight, not to mention increase safety by improving rigidity.
Due to the differing properties of steel and aluminium, the join can now be given features that cater specifically for the application in question.
For example, if aluminium in the roof is arc-welded to the steel pillars, this has the effect of lowering the vehicle's centre of gravity as well as reducing its body weight.
Interior fittings and seat fixtures also lend themselves well to innovative joining solutions.
Designers are anticipating considerable weight reductions in wagon und scaffolding applications.
By contrast, the electrical and electronic industries are looking forward to being able to reduce the number of bolted and riveted joints.
An interesting challenge.
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