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Russell Bull
11/14/05 03:18
Read: 644 times
Melbourne
Australia


 
#103682 - Tig welding aluminium
Responding to: Steve M. Taylor's previous message

The difference between a tig welder for steel and aluminium is quite substantial - so is the price. For steel it is just an inverter with rectified DC and a scratch start circuit, for aluminium there is extra stuff for 'AC'. From what I understand, the extras invert the voltage every so often to puncture to aluminium oxide layer. Then you have the 'pulse' features to regulate the amount of energy put into the weld. I spied a cheap inverter welder in paris earlier this year at Castco for about $149 euro. It was good for about 100A at 20% duty cycle. I normally use a more expensive inverter for DC tig and stick that is rated at 120A 100% duty cycle - but it is more like $800 euro in comparison.

It doesn't sound like an easy project to me to add the extras for aluminium welding - best be saving your money to buy the real thing, or get someone with experience to do the welding for you - aluminium is tricky and requires some training and lots of practice!

List of 18 messages in thread
TopicAuthorDate
TIG welding      Steve M. Taylor      11/06/05 06:37      
   tig welder conversion      Terry Lingle      11/06/05 09:38      
      Entry level      Steve M. Taylor      11/06/05 11:51      
         tig      Terry Lingle      11/06/05 23:22      
            All you need      Steve M. Taylor      11/07/05 04:49      
               harbour freight      Terry Lingle      11/07/05 06:59      
                  http://www.harborfreight.com/cpi/ctaf/Di      Steve M. Taylor      11/07/05 07:39      
                     clearwater      Terry Lingle      11/07/05 08:01      
                        Price increase      Steve M. Taylor      11/07/05 08:03      
                           price increase      Terry Lingle      11/07/05 08:07      
   Tig welding aluminium      Russell Bull      11/14/05 03:18      
      aluminium tig welding      Terry Lingle      11/14/05 07:25      
         Well worth it.      Steve M. Taylor      11/14/05 16:18      
            beautiful tig welds      Terry Lingle      11/15/05 09:10      
               ?      Steve M. Taylor      11/15/05 15:53      
                  is it possible      Terry Lingle      11/15/05 22:24      
                     TEN ?      Steve M. Taylor      11/16/05 02:41      
                        deposition      Terry Lingle      11/16/05 08:56      

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