Things Metallurgical
#1 Things Metallurgical
I guess to many members this is a silly question, but here goes!
I want to straighten my torsion bar body mount, it’s only slightly deformed..goodness knows by what, but it offends me. (See pic)
So does anyone know if heating this fitting up to red heat in odd spots, will destroy any production metallurgy and render the thing less than optimal?
I suspect it’s ordinary M/S just heavy. Thanks for any replies.
Incidentally this is the current condition of the body on my rotisserie.
Peter.
I want to straighten my torsion bar body mount, it’s only slightly deformed..goodness knows by what, but it offends me. (See pic)
So does anyone know if heating this fitting up to red heat in odd spots, will destroy any production metallurgy and render the thing less than optimal?
I suspect it’s ordinary M/S just heavy. Thanks for any replies.
Incidentally this is the current condition of the body on my rotisserie.
Peter.
Peter {XKE V12HE efi}
XKRS
RR Phantom 3 1937 Sedanca de Ville.
XKRS
RR Phantom 3 1937 Sedanca de Ville.
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#2 Re: Things Metallurgical
I agree that it'll be mild steel.
As such you shouldn't need to heat it too much. Just cold work it with a hammer and dolly.
As such you shouldn't need to heat it too much. Just cold work it with a hammer and dolly.
Andrew.
881824, 1E21538. 889457. 1961 4.3l Mk2. 1975 XJS. 1962 MGB
http://www.projectetype.com/index.php/the-blog.html
Adelaide, Australia
881824, 1E21538. 889457. 1961 4.3l Mk2. 1975 XJS. 1962 MGB
http://www.projectetype.com/index.php/the-blog.html
Adelaide, Australia
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#3 Re: Things Metallurgical
Heating would probably distort it, cause it to bend and twist, you could be worse off than u r now. I'd be classifying it as an honorable battle scar. If u cannot, maybe just try to squash the worst of the dents in a vice, or with a hydraulc hand press?
Regards,
ColinL
'72 OTS manual V12
ColinL
'72 OTS manual V12
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#4 Re: Things Metallurgical
I just knocked similar damage out of my MK2 crossmember with a 3lb hammer.
The vice is a good idea.
The vice is a good idea.
Andrew.
881824, 1E21538. 889457. 1961 4.3l Mk2. 1975 XJS. 1962 MGB
http://www.projectetype.com/index.php/the-blog.html
Adelaide, Australia
881824, 1E21538. 889457. 1961 4.3l Mk2. 1975 XJS. 1962 MGB
http://www.projectetype.com/index.php/the-blog.html
Adelaide, Australia
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#5 Re: Things Metallurgical
I think I’m going to try the heavy vice idea, although the section is pretty thick and I may not have enough oomph in the vice to do it cold...here goes!!!
Thanks again.
Thanks again.
Peter {XKE V12HE efi}
XKRS
RR Phantom 3 1937 Sedanca de Ville.
XKRS
RR Phantom 3 1937 Sedanca de Ville.
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#6 Re: Things Metallurgical
Peter....hold fire....i just wrecked a good old vice.....stripped the thread by over tightening.....use a press. ...Steve
Steve
69 S2 2+2 (just sold) ..Realm C type replica, 1960 xk150fhc
69 S2 2+2 (just sold) ..Realm C type replica, 1960 xk150fhc
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#7 Re: Things Metallurgical
Peter Wrote:
The material is Mild Steel and considered a low carbon steel as it is defined as having a low carbon content of 0.05–0.25%. Accordingly, you could heat the part to cherry red and quench and no hardening whatsoever will occur. The only way to change its mechanical characteristics would be to apply a soaking heat with the component in a Carbonaceous environment. In this case, carbon is absorbed by the surface of the material (time spent in the Carbonaceous environment determines the depth of absolution) and subsequent quenching will result in a hardened case; hence the term "Case Hardening".
Your part could be successfully repaired to near perfection using a Hydraulic Press by applying a load to the deformed features sandwiched between suitable and as thick pieces of flat bar and plate that can be arranged.
If a press is not available to you and heating is required, the shape and material thickness of this part will resist distortion. In fact, planned and careful application of heat to small areas where the metal is stretched will pull the part back into shape. Because the metal surrounding a small area heated to a plastic state is unyielding and the hot spot is expanding, there is nowhere to expand to and therefore, the metal in the hot spot compacts. When quenched, the hot spot will have shrunk, thus pulling the surrounding metal towards it.
Pressing would be my choice of repair method, but you will find that the deformed edges of your part will straighten up very well cold with a hammer and flat bar as a dolly. With localized heat, the metal will move more easily.
Regards,
Bill
Hello Peter,So does anyone know if heating this fitting up to red heat in odd spots, will destroy any production metallurgy and render the thing less than optimal?
The material is Mild Steel and considered a low carbon steel as it is defined as having a low carbon content of 0.05–0.25%. Accordingly, you could heat the part to cherry red and quench and no hardening whatsoever will occur. The only way to change its mechanical characteristics would be to apply a soaking heat with the component in a Carbonaceous environment. In this case, carbon is absorbed by the surface of the material (time spent in the Carbonaceous environment determines the depth of absolution) and subsequent quenching will result in a hardened case; hence the term "Case Hardening".
Your part could be successfully repaired to near perfection using a Hydraulic Press by applying a load to the deformed features sandwiched between suitable and as thick pieces of flat bar and plate that can be arranged.
If a press is not available to you and heating is required, the shape and material thickness of this part will resist distortion. In fact, planned and careful application of heat to small areas where the metal is stretched will pull the part back into shape. Because the metal surrounding a small area heated to a plastic state is unyielding and the hot spot is expanding, there is nowhere to expand to and therefore, the metal in the hot spot compacts. When quenched, the hot spot will have shrunk, thus pulling the surrounding metal towards it.
Pressing would be my choice of repair method, but you will find that the deformed edges of your part will straighten up very well cold with a hammer and flat bar as a dolly. With localized heat, the metal will move more easily.
Regards,
Bill
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#8 Re: Things Metallurgical
Well I’m glad the plan was for the weekend with so much input, thanks ...I do like this forum.....Do we have any PhD’s in nuclear physics people.....lol.
Mmm I guess we might....how about Byzantine Archeologists??
Mmm I guess we might....how about Byzantine Archeologists??
Peter {XKE V12HE efi}
XKRS
RR Phantom 3 1937 Sedanca de Ville.
XKRS
RR Phantom 3 1937 Sedanca de Ville.
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#9 Re: Things Metallurgical
Doesn't sound that good. Even with a chuffing great scaffolding pole over the lever, I'd expect the tommy bar to bend, not the thread to strip. That or the vice to pull off the bench....
1E75339 UberLynx D-Type; 1R27190 70 FHC; 1E78478; 2001 Vanden Plas
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#10 Re: Things Metallurgical
Hi Peter....it was a big old vice.....the main thread runs through a large cast bronze looking fitting.....i was useing a long pole.....the cast fitting broke up.....Steve
Steve
69 S2 2+2 (just sold) ..Realm C type replica, 1960 xk150fhc
69 S2 2+2 (just sold) ..Realm C type replica, 1960 xk150fhc
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#11 Re: Things Metallurgical
Nuclear physics isn't too difficult to understand. The tricky thing is controlling the reaction.
Byzantine archeology? Where did you dig that one up from?
Regards
Stuart
If you can't make it work, make it complicated!
'62 FHC - Nearing completion
'69 Daimler 420 Sovereign
'78 Land Rover Series 3 109
If you can't make it work, make it complicated!
'62 FHC - Nearing completion
'69 Daimler 420 Sovereign
'78 Land Rover Series 3 109
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#12 Re: Things Metallurgical
Stuart,
I happen to know a splendid lady who is indeed a Byzantine Archeologist, Even she will tell you it’s a bit of a niche market, but what she can’t tell you about the buildings in Venice is not worth knowing, she plays a mean game of Rugby too!
P
I happen to know a splendid lady who is indeed a Byzantine Archeologist, Even she will tell you it’s a bit of a niche market, but what she can’t tell you about the buildings in Venice is not worth knowing, she plays a mean game of Rugby too!
P
Peter {XKE V12HE efi}
XKRS
RR Phantom 3 1937 Sedanca de Ville.
XKRS
RR Phantom 3 1937 Sedanca de Ville.
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