Cast Aluminum Runningboards

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Posts: 6
Joined: Mon Apr 05, 2004 5:04 pm
Location: Lakewood, CO

Cast Aluminum Runningboards

Post by wacohen » Wed Dec 27, 2006 4:19 pm

I'm sure somone else must have experienced broken (cracked) cast aluminum pieces such as runningboards.

Mine have cracked, been welded (heli-arced?), and cracked again.
The old welds are from the underside to preserve the piramid pattern and perhaps the penetration was insufficient.

Any suggestions about repair methods?
Is heli-arc welding (again) the best answer?
Of course, the top (visible) areas will have to appear un-repaired.
How do you suggest I do that?

I assume that any solution requires clean surfaces, any suggestions regarding cleaning agents and methods?

Bill :

Posts: 13
Joined: Tue Mar 06, 2007 12:38 am
Location: Westwood,Cal.

cast aluminum runningboards

Post by hccaguy » Tue Mar 06, 2007 1:19 am

Dear Bill,
I just finished casting aluminum runningboards for my 1911 Marmon.There are 4,5 passenger tourings left,but I was lucky to
find a generous soul who loaned me a pattern.Lots of foundries
out there but few who can successfully provide a finished runningboard that your machinist can finish off.It seems the
length is a problem for many and controlling the shrinkage of such a shape is a bear.
I have a great deal of dollars involved and didn't have the grief
of having the patterns shaped.
Both my runningboards were beyond welding.One might have
helped in creating a pattern.
Good Luck, hccaguy


Posts: 7
Joined: Tue Aug 01, 2006 10:56 am
Location: Virginia

Cast Aluminum Running Boards

Post by DriveAG2 » Wed Mar 07, 2007 12:52 pm

Soooooooo.... Who is the foundry that can handle long aluminum castings for running boards? :?:

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