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Welding Quater Window Frames?


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#1 aircobra

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Posted 20 March 2017 - 08:20 PM

the story  is that in the most rusty z in the galaxy( that;s my car), even the little tab in the rear quarter window has rusted odd.  has anyone attempted to fabricate and weld one on? i can't workout if there are sstainless or chrome plated frames?

https://www.autopart...ndow-glass-left

are they brazed on?

thanks



#2 Riceburner

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Posted 20 March 2017 - 10:03 PM

Is it the screw in bracket inside the bottom of the stainless quarter window frame?

 

I had bugger all rust in my car but that steel cad plated bracket was toast, I internally tig welded the corner of the stainless frame and got rid of the bracket all together. The upper one is still in place as it was in very good condition. 



#3 aircobra

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Posted 20 March 2017 - 10:15 PM

i think there 's 3 of them , all for holding in the frame from the inside

https://cdn.shopify....pg?v=1442269121

what material is the frame?

looks like it was plated and then welded on. which means the plating got burned off and they started rusting on day #1



#4 Riceburner

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Posted 20 March 2017 - 10:30 PM

Ah ok those ones. The frame is stainless steel, are the brackets not the same?



#5 aircobra

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Posted 20 March 2017 - 10:33 PM

if they're rusted off, i figure not  ....

can you mig wed the bastards on?



#6 gilltech

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Posted 21 March 2017 - 06:37 PM

Ditto Gareth J, they were electroplated steel, screw fixed to the stainless steel frames as staking angles to hold the mitred corners together, just like with picture frames.

Dumb idea, mixing two different materials. Even on cars without rust issues the lower front corner ones will eventually rust (water gets into the mitre joints as they are unsealed) therefore they blow up & expand & force the mitred joints apart.

Remove them, make up fresh new ones in galv or SS & install them so as to pull the mitres tight together. Paint them heavily in POR-15 or cold galv or whatever, & seal up the frame joints, before reinstalling the windows, & they should be good for many years to come.

I wouldn't weld them as I'd want to be able to disassemble the frames if I needed to in the future.


Edited by gilltech, 21 March 2017 - 06:38 PM.


#7 aircobra

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Posted 10 May 2017 - 08:45 AM

ended up buy $5 stainless brackets from bunings, then tapping some holes in them , some stainless countersunk screws. a bit of bending ... job done



#8 aircobra

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Posted 10 May 2017 - 08:47 AM

why bother with plated ones? you can see how exposed that corner is to the weather. just bad nissan engineering, saving 50c ( or less) on a bracket



#9 Riceburner

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Posted 10 May 2017 - 03:08 PM

These were the brackets you were originally asking about (pic attached). They look stainless to me, perhaps the welds were mild steel and that's why they rusted?

As for the other frame brackets, the welded lower 90degree corner still allows for the window to be easily disassembled. Even if you did things the same as the factory using dissimilar metals they'll still last another 40yrs.

Edit: won't let me load the picture

Edited by Gareth. J., 10 May 2017 - 03:16 PM.


#10 d3c0y

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Posted 11 May 2017 - 06:45 PM

I just tig welded my frames together FWIW.






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