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Technical Discussions
Peter
Peter
09:03 Jun-16-2005
Braze Joints

Hi, I am trying to figure out what creates a standard for braze joints and braze joint inspection. I know about ultrasonic cscan and Quasar Process Compensated Resonant Inspection. Though highly doubtful I am wondering if there is any visual inspections you can do to determine a good or bad braze joint. I am also wondering if there is an industry standard to do a destructive inspection,like how many parts to pull from a lot to determine a lot pass/fail.


    
 
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peter
peter
00:13 Jun-16-2005
Re: Braze Joints
Oh yeah just to you clarify. I am looking for general visual inspection techniques. I know it is heavily part specific if there are any techniques. I am looking for examples like percentage of braze alloy above joint.

----------- Start Original Message -----------
: Hi, I am trying to figure out what creates a standard for braze joints and braze joint inspection. I know about ultrasonic cscan and Quasar Process Compensated Resonant Inspection. Though highly doubtful I am wondering if there is any visual inspections you can do to determine a good or bad braze joint. I am also wondering if there is an industry standard to do a destructive inspection,like how many parts to pull from a lot to determine a lot pass/fail.
------------ End Original Message ------------




    
 
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BILL KIESEL
NDT Inspector, level III L.P.I., X-RAY & U.T.
Smiths Tubular Systems-Laconia, USA, Joined Aug 2002, 4

BILL KIESEL

NDT Inspector, level III L.P.I., X-RAY & U.T.
Smiths Tubular Systems-Laconia,
USA,
Joined Aug 2002
4
02:12 Jun-18-2005
Re: Braze Joints
----------- Start Original Message -----------
: Oh yeah just to you clarify. I am looking for general visual inspection techniques. I know it is heavily part specific if there are any techniques. I am looking for examples like percentage of braze alloy above joint.
: : Hi, I am trying to figure out what creates a standard for braze joints and braze joint inspection. I know about ultrasonic cscan and Quasar Process Compensated Resonant Inspection. Though highly doubtful I am wondering if there is any visual inspections you can do to determine a good or bad braze joint. I am also wondering if there is an industry standard to do a destructive inspection,like how many parts to pull from a lot to determine a lot pass/fail.
------------ End Original Message ------------

One of the commonly used method of confirming internal braze coverage using a visual method is to control which surface the braze is introduced and perform the inspection on tne opposite surface. this becomes a verification of braze flow. For NDT methods UT and X-Ray are your primary methods for confirming braze flow. In order to comply with a requirement that requires a specific percentage of braze coverage one of these methods will be needed.


    
 
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