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Tach and Speedo mounting bracket... weldable? #574244
11/27/14 11:46 pm
11/27/14 11:46 pm
Joined: Aug 2010
Posts: 588
Toronto, Canada
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Bola Offline OP
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Bola  Offline OP
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Toronto, Canada
Would anyone know the grade of aluminum that is used on the A65 gauge mounting plate. Is this die cast - moulded? It's obviously machinable.

What I'd like to do is add a piece of a aluminium in between the gauges to create a spot for a liquid filled oil pressure gauge. And I'd like to know the weldabilty of the material. Has anyone welded any extensions onto theirs with success? If so what grade was used? My preference would be 6061.


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Re: Tach and Speedo mounting bracket... weldable? [Re: Bola] #574245
11/28/14 12:38 am
11/28/14 12:38 am
Joined: Oct 2001
Posts: 541
Howard City, MI
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Ed V Offline

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Howard City, MI
You can weld to it with 4042 if tig welding or 1100 if gas welding

Re: Tach and Speedo mounting bracket... weldable? [Re: Ed V] #574246
11/28/14 1:05 am
11/28/14 1:05 am
Joined: Aug 2010
Posts: 588
Toronto, Canada
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Bola Offline OP
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Originally Posted By: Ed V
You can weld to it with 4042 if tig welding or 1100 if gas welding


Hmm... 4042 doesn't have many informative references available on the net. Uncommon?

Re: Tach and Speedo mounting bracket... weldable? [Re: Ed V] #574280
11/28/14 2:22 pm
11/28/14 2:22 pm
Joined: Nov 2011
Posts: 4,072
U.S.
Magnetoman Online content

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Magnetoman  Online Content

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Originally Posted By: Ed V
You can weld to it with 4042 if tig welding
I suspect this is a typo and you meant to write 4043. When dealing with a casting or extrusion of unknown composition 4043 is my first choice. If there are problems with 4043 on a particular casting 4047 is my second choice. Its higher Si content causes it to flow better (which isn't always an advantage). If neither of those work, try 4145.

Re: Tach and Speedo mounting bracket... weldable? [Re: Magnetoman] #574289
11/28/14 5:16 pm
11/28/14 5:16 pm
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Posts: 588
Toronto, Canada
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Bola Offline OP
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Bola  Offline OP
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Originally Posted By: Magnetoman
Originally Posted By: Ed V
You can weld to it with 4042 if tig welding
I suspect this is a typo and you meant to write 4043. When dealing with a casting or extrusion of unknown composition 4043 is my first choice. If there are problems with 4043 on a particular casting 4047 is my second choice. Its higher Si content causes it to flow better (which isn't always an advantage). If neither of those work, try 4145.


Do you refer to the filler rod or the material itself to be welded to the original piece?

Re: Tach and Speedo mounting bracket... weldable? [Re: Bola] #574292
11/28/14 5:43 pm
11/28/14 5:43 pm
Joined: Nov 2011
Posts: 4,072
U.S.
Magnetoman Online content

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Magnetoman  Online Content

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Posts: 4,072
U.S.
Originally Posted By: Bola
Do you refer to the filler rod or the material itself to be welded to the original piece?
I was referring to the filler rod. If you're using 6061 for the piece you will be adding (which is a very common alloy), the 4043 filler rod will work great with it as well as being most likely to work with the casting.


Moderated by  Allan Gill, Jon W. Whitley 


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