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Control arms in a new light

Posted: Mar 01, 2012 11:19 PM
by dragonbar
I got bored at work today, so I started playing around with our computerized radiography setup. I wanted to see what the casting quality was. So this is what I came up with. There are three defects. Can you find them?

Image

Posted: Mar 01, 2012 11:34 PM
by 1st 5er
No, but cool pic.

Posted: Mar 01, 2012 11:37 PM
by fukoa
I never thought I would see something like this ,
but I like it
I hope you are not using the one on the bottom - it looks like a toothpick compare to the one above

Posted: Mar 01, 2012 11:46 PM
by mooseheadm5
Well, you have rubber bushings in those. :D

Posted: Mar 01, 2012 11:46 PM
by Tammer in Philly
Guessing: upper arm on the rightmost part of the "hump" where it clears the tie rod, lower arm on the right/bottom of the hump in as pictured, and on the straight part between the hump and the bushing, nearer the hump, top as pictured.

What brand?

-t.

Posted: Mar 02, 2012 8:48 AM
by dragonbar
Tammer in Philly wrote:Guessing: upper arm on the rightmost part of the "hump" where it clears the tie rod, lower arm on the right/bottom of the hump in as pictured, and on the straight part between the hump and the bushing, nearer the hump, top as pictured.

What brand?

-t.
Upper arm-Correct, one spot of porosity.
Lower arm-Mostly correct
The lower arm has two small spots of porosity. Both are are near the hump turning down toward the ball joint. One in the right hand portion of the hump, the other in the final turn toward the ball joint. The spot on the straight section near the bushing, is actually a defect in the imaging plate. However, unless you are intimately familiar with the technology, it's near impossible to know the difference. So kudos to Tammer! :alright:

These are actually the old arms that were removed last weekend. They have BMW cast into the arm, so I can only guess that they are either original, or original factory replacements.

The bottom arm isn't actually as thin as it appears in the image. That is a result of the image manipulation to get the shading density correct.