JHOLLAND1
Titanium
- Joined
- Oct 8, 2005
- Location
- western washington state
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porous welds are good welds
- Thread starter JHOLLAND1
- Start date
- Replies 4
- Views 2,683
dave powelson
Cast Iron
- Joined
- Aug 28, 2007
- Location
- Yuba City, CA
porosity is evidence of strength?...!!
Repair welding using filler of comparable material and hardness (?)
is a good idea.
But now some sales guy dreams up this, poor, poor, poor excuse--to allow
porosity, when customers bitch.
"Welding temperatures required may drive nitrogen gas from the nitrided surface.
Any resultant nitrogen bubbles in the weld are actually evidence of strength....not weakness.
If a softer welding rod were used, it would make subsequent machining much easier. Softer material, however, promotes tool failure. Don't be fooled by the fact that soft welds usually look nicer than hard welds."
Leaving alone the excuse for porosity, they're tiggin' these repairs.
Okay----what about weld induced HAZ--which can generate both softer and harder areas?
Repair welding using filler of comparable material and hardness (?)
is a good idea.
But now some sales guy dreams up this, poor, poor, poor excuse--to allow
porosity, when customers bitch.
"Welding temperatures required may drive nitrogen gas from the nitrided surface.
Any resultant nitrogen bubbles in the weld are actually evidence of strength....not weakness.
If a softer welding rod were used, it would make subsequent machining much easier. Softer material, however, promotes tool failure. Don't be fooled by the fact that soft welds usually look nicer than hard welds."
Leaving alone the excuse for porosity, they're tiggin' these repairs.
Okay----what about weld induced HAZ--which can generate both softer and harder areas?
Ciszewski
Hot Rolled
- Joined
- May 9, 2011
- Location
- Sandy Hook, MB Canada
xdmp22
Hot Rolled
- Joined
- Jan 28, 2012
- Location
- Nebraska, U.S.A.
And nothing holds like a good crossthread too!!!!!!!