Many people think that TIG welding anodized aluminum is like welding every other aluminum piping. That’s wrong and among the big secrets that very couple of welders know. Anodized aluminum requires bumping or place welding! Yeah, the big secret!
To get this kind of pipe welded you must do two passes. The very first pass is place welded all the way around using the filler wire being added. Around the second pass you place weld completely around but with no filler wire added this time around. The reason behind this really is anodized aluminum includes a very difficult coating that’s hard to melt through. The very first pass will join the 2 pieces together although not melt the anodized coating in to the weld area completely. Because the coating isn’t melted correctly the weld will appear very rough. The 2nd pass can be used to melt the anodized coating in to the weld better and provide the weld its smooth appearance. Finally the weld is colored with weld paint. This is accomplished since the anodized coating won’t completely cover the weld area, so weld paint must finish the task to safeguard the weld area.
TIG welding anodized aluminum requires three things:
First is definitely an A/C and D/C TIG welder having a high frequency start button around the TIG torch.
Second is really a pure tungsten electrode having a tapered ball formed finish.
Aluminum weld paint,
To organize the tungsten to weld anodized aluminum you’ll need a tapered ball formed finish. To get this done you just place the tungsten in to the TIG torch. Next switch on your welder and hang it to D/C electrode ( ) positive. Finally hit our prime frequency start button and strike an arc on a bit of clean steel or ideally pure copper. When the arc starts keep arriving the amperage before the tungsten begins to melt. Finally when there’s a tapered ball finish, steer clear of the arc. There you have it!
The particular welding is performed by place welding completely round the pipe. The very first factor you will have to do is placed the TIG welder to someOrD alternating electric current. Typically you will see two passes required to weld the pipe. The very first is using the filler wire added and also the second it to lessen the weld. The secret to TIG welding anodized aluminum is to maintain your amperage around the high range and also the place welds should typically last about one second over time each.
When the welding is completed all that you should do is paint the welds. That’s all there’s to TIG welding anodized aluminum! When you are going using this type of welding procedure you’ll be amazed just how the welds check out anodized aluminum piping!
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