advice on dent

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Tim4x4 said:
It's not Birmingham brite alloy it's Birmabrite. Soap melts at 140F alloy aneals at approx 750F
Tim
Click to expand...

Bir Metals developed the alloy ... Bir metals, as in BIRmingham metals - hence ....

All here:-

https://en.wikipedia.org/wiki/Birmabright

Also, I didn't mention soap melting .... I said burns - as mentioned in other later posts Soap going black indicates the correct temp for annealing alluminium alloy.
 
nobber said:
Why would you want to heat that up? All thats going to do is burn the paint off.
Click to expand...

Indeed. Not what I would be doing either.

TIMROSS said:
Ok chaps. I am now confused Does it help to heat up the skin on a 2005 defender to help get a dent out
Click to expand...

Yes, but, it'll burn all the paint off - you have to decide which route to follow ... I'd be trying to get it all back in shape with the minimum of force, take your time, and do as little damage to the paint as possible.

If that fails then you might have to anneal, shrink the required areas, anneal again - and repeat as required ....then you get to paint it...
 
The puppy is going in for a full respray so the paint burning off shouldn’t be an issue

but I will try the gentle touch first hahahhaaa
 
TIMROSS said:
The puppy is going in for a full respray so the paint burning off shouldn’t be an issue

but I will try the gentle touch first hahahhaaa
Click to expand...
timross.
I have spoken to friendly bodywork person who says "from the photograph it appears to him that it is possible to complete an effective repair on the damage shown without annealing the material first" he went on to say that the amount of material in the area would rob the heat so major dismantling would be required to be able to anneal the affected area properly. So in his opinion again his words" just tease the material back to shape by cold working" he would use hydraulic pushers and limit the hammering.
Tim
 
Disco1BFG said:
Bir Metals developed the alloy ... Bir metals, as in BIRmingham metals - hence ....

All here:-

https://en.wikipedia.org/wiki/Birmabright

Also, I didn't mention soap melting .... I said burns - as mentioned in other later posts Soap going black indicates the correct temp for annealing alluminium alloy.
Click to expand...

A company named Birmingham metals was located in the Smethwick area but had nothing to do with Birmid.
Birmid came about by the joining of two companies BIRmingham aluminium castings and MIDland Motor Cylinder Co Ltd this was long before Birmid started the company Birmetals.
So Birmetals who manufactured birmabrite comes from Birmid metals not Birmingham metals.

Also James Martin is correct in this statements of no 90 or 110 are made with Birmabrite from the factory. Also the last series were not Birmabrite bodies Land Rover had lost confidence in Birmetals to supply consistent quantities of sheet Birmabrite so looked for an alternative supply.

The repair that TIMROSS wants to complete is of a vertical face if soap melts at 140F will it still be on the face of the dented material when it reaches its annealing temperature of 770F if it does I stand corrected.
A much more accurate indicator would be temperature indicating paint manufactured for the task such as:-
https://www.mcmaster.com/temperature-indicating-paint/temperature-points~750degreesf/

Tim
 
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