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Apr 29th, 2024
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Joined: Dec 2001
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Sidelock
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Sidelock
Joined: Dec 2001
Posts: 5,257 |
Having thought about this for a couple of days now, maybe this is worth the effort.
Using a very powerful magnifier, look at the proximal end of the "addition". It may be possible to see either some tool marks left if machined from a solid stock or a solder line.
Worth a try and won't cost anything.
Best,
John
Humble member of the League of Extraodinary Gentlemen (LEG). Joined 14 March, 2006. Member #1.
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Joined: Apr 2002
Posts: 692
Sidelock
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Sidelock
Joined: Apr 2002
Posts: 692 |
Dick,
I don't think this would be all that hard to interpret if there is a solder joint. In all my years of doing all types of hard and soft solder I have never done a joint that was a not a slip fit. When a joint is soldered you heat both the inside and outside when ever possible and both pieces will expand. A press fit leaves no place for the solder to stay and will result in a poor joint with less that 100% contact. Full contact is essential to success. I'd bet money that I've done 10,000 solder joints in the last 25 years on all kinds of different parts. I bet that if it is soldered and has held up to many years of use there is enough solder to show on simple testing. Please tell me more about press fit solder. I need to know. I just goes against everything I know on the subject.
Bill G.
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Joined: Apr 2003
Posts: 973
Sidelock
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OP
Sidelock
Joined: Apr 2003
Posts: 973 |
Bill, I owe you for fixing my syracuse top lever and spring. I never heard back from you about it. The PM system may not work so please email me at ross@berck.org . Thanks, Ross
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Joined: Feb 2004
Posts: 13,879 Likes: 15
Sidelock
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Sidelock
Joined: Feb 2004
Posts: 13,879 Likes: 15 |
Dd1,
I have personally seen a pressfit sleeve, under the blacklight in a fluorescent mag particle test, in a block that was intended to hold the tailhook on a Navy trainer. The fit of the sleeve was as good as it gets and then the end surface ground. It was invisible to the naked eye. But, when the FMP test was done, the line showed like a neon light. That is the beauty of FMP, it detects even "closed" cracks.
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Joined: Jan 2003
Posts: 803
Sidelock
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Sidelock
Joined: Jan 2003
Posts: 803 |
Dd1,
I have personally seen a pressfit sleeve, under the blacklight in a fluorescent mag particle test, in a block that was intended to hold the tailhook on a Navy trainer. The fit of the sleeve was as good as it gets and then the end surface ground. It was invisible to the naked eye. But, when the FMP test was done, the line showed like a neon light. That is the beauty of FMP, it detects even "closed" cracks. Was the press fit soldered? If not, the joint should be visable. If it was soldered and then able to be seen, that is good information. Slip fit is indeed the correct terminology! -Dick
Last edited by Dick_dup1; 09/17/07 10:35 AM.
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Joined: Feb 2004
Posts: 13,879 Likes: 15
Sidelock
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Sidelock
Joined: Feb 2004
Posts: 13,879 Likes: 15 |
Dd1,
This particular example was not soldered as you may have deduced. But, I have seen soldered assemblies under FMP as well. They show very clearly due to the opposing fields across the joint.
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