sry man i was looking forward to this as I liked the looks of them
Return line caps update
Thread Starter
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Cargo Master
Joined: Oct 2008
Posts: 3,330
Likes: 13
From: Eaton, CO
New caps are in the works. We'll see what material they are and how they turn out. They're either going to be aluminum again or brass. This time I'll receive them welded, brazed or soldered.
Senior User
Joined: May 2010
Posts: 288
Likes: 0
From: Oregon
Let me know how well they work then, I'd love to try them if they hold up betetr than the olives
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Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
I see several issues that caused his problem ...
Coolant/Cutting fluid or some other contaminant in the porosity of the aluminum.
Blunt tungsten.
To much current/heat.
-Enjoy
fh : )_~
Coolant/Cutting fluid or some other contaminant in the porosity of the aluminum.
Blunt tungsten.
To much current/heat.
-Enjoy
fh : )_~
Postmaster
Joined: Jan 2010
Posts: 4,319
Likes: 4
From: Elk City, OK
x2 about the tungsten, etiher it was blunt or pointed like you'd use for steel unstead of rounded. also he tried to feed too much rod into it.
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
Something else I just though of, he may be grinding his tungsten horizontal versus vertical...
What I mean by that is when you grind your tungsten you grind it so the grinding marks go lengthwise (or along the length) of the tungsten, not cross ways to the length.
That causes a large uncontrollable arc.
-Enjoy
fh : )_~
What I mean by that is when you grind your tungsten you grind it so the grinding marks go lengthwise (or along the length) of the tungsten, not cross ways to the length.
That causes a large uncontrollable arc.
-Enjoy
fh : )_~
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
Been there already, he feels that would be inadequate do to the vibration.
I disagree, a good interference fit can be very strong, however there is a depth/diameter ratio that ultimately determines the strength, if the bore isn't deep enough for the diameter they can be weak. I don't know the formula, but I do know that it should be at least as deep as the diameter for maximum strength.
IMO I don't think it needs to be maximum strength, there is not that much vibration.
Lots of components like that are made with interference fits.
-Enjoy
fh : )_~
I disagree, a good interference fit can be very strong, however there is a depth/diameter ratio that ultimately determines the strength, if the bore isn't deep enough for the diameter they can be weak. I don't know the formula, but I do know that it should be at least as deep as the diameter for maximum strength.
IMO I don't think it needs to be maximum strength, there is not that much vibration.
Lots of components like that are made with interference fits.
-Enjoy
fh : )_~
Thread Starter
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Cargo Master
Joined: Oct 2008
Posts: 3,330
Likes: 13
From: Eaton, CO
Pressing a hollow cylinder into the side of a cylinder w/o a flat surface to start your press can lead to issues. Machining a flat would be unsightly and I'd lose depth. If there was a small burr in the bore during the press, it would cause a leak.
I have reference material upstairs from my mechanical elements in machine design class which walks one through the design of interference fits. I also have the machinery's handbook which simplifies interference fits.
I have reference material upstairs from my mechanical elements in machine design class which walks one through the design of interference fits. I also have the machinery's handbook which simplifies interference fits.
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
And so do I ... I also have done it a thousand times if once!
But it's your choice, it's your project, I could care less what you know or don't, I know what I know and I know what I don't.
[edit]
Sorry, I should not have said that, it's not true, I do care!
(Underlined cause STRIKE tags don't seem to work)
[/edit]
-Enjoy
fh : )_~
But it's your choice, it's your project, I could care less what you know or don't, I know what I know and I know what I don't.
[edit]
Sorry, I should not have said that, it's not true, I do care!
(Underlined cause STRIKE tags don't seem to work)
[/edit]
-Enjoy
fh : )_~