liam.mccaffrey
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| posted on 23/10/11 at 05:53 PM |
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Copper Grub screws or small bolts
Anyone know a source for small copper grub screws?
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ReMan
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| posted on 23/10/11 at 06:50 PM |
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Do these exist in the real world? (ie not models)
I'd expect them to be too soft for anything, brass being more common
www.plusnine.co.uk
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britishtrident
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| posted on 23/10/11 at 07:01 PM |
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As above Silicon Bronze if corrosion resistance is required.
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02GF74
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| posted on 23/10/11 at 07:12 PM |
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^^^^ as above - copper is soft so would be like making them from chocolate; you can get copper plated screws (steel) so not as good for conducting
electricity.
what size and for what purpose? maybe the collective lcb brain can come up with an alternatice.
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iank
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| posted on 23/10/11 at 08:03 PM |
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Wouldn't be too hard to make them on a lathe if copper is essential.
Could probably make them with a die if you can find the right diameter copper rod.
[Edited on 23/10/11 by iank]
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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liam.mccaffrey
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| posted on 23/10/11 at 08:26 PM |
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They have to be copper. i have to plug a small threaded hole in a machined copper part, I'm going to weld over the top then to ensure air
tightness.
I will probably end upp machining from copper bar, I have a lathe (3 actually)
[Edited on 23/10/11 by liam.mccaffrey]
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Peteff
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| posted on 23/10/11 at 08:53 PM |
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Why not weld the hole up?
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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britishtrident
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| posted on 23/10/11 at 09:20 PM |
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Weld copper ? -- a non-starter I think, I would investigate using silver solder.
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britishtrident
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| posted on 23/10/11 at 09:26 PM |
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quote:
Originally posted by liam.mccaffrey
They have to be copper. i have to plug a small threaded hole in a machined copper part, I'm going to weld over the top then to ensure air
tightness.
I will probably end upp machining from copper bar, I have a lathe (3 actually)
[Edited on 23/10/11 by liam.mccaffrey]
Liam 3 lathes McCaffrey ? as in Monty Python's Arthur Two Sheds Jackson 
http://www.youtube.com/watch?v=uWg_eovYnhk
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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stevebubs
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| posted on 23/10/11 at 09:26 PM |
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quote:
Originally posted by britishtrident
Weld copper ? -- a non-starter I think, I would investigate using silver solder.
Could you not gas weld it with copper filler rod?
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iank
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| posted on 23/10/11 at 09:27 PM |
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quote:
Originally posted by britishtrident
Weld copper ? -- a non-starter I think, I would investigate using silver solder.
No problem with a tig http://www.locostbuilders.co.uk/forum/37/viewthread.php?tid=162167
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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britishtrident
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| posted on 23/10/11 at 09:41 PM |
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Welding up a small blind hole in a largeer copper isn't going to be easy, braze welding/silver soldering/soldering is always going to be the
preferred option.
Another method of sealing holes in soft metal parts is to put a lead shot in the hole and peen it with a punch.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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liam.mccaffrey
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| posted on 23/10/11 at 10:12 PM |
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Thanks for suggestions guys, I'll let you know how I go.
I like Liam 3 lathes McCaffrey
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