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Technical Discussions
Nick Welland
Nick Welland
03:23 Dec-01-2005
RT of round bar

I know this is one of the old theoretical problems, but has anyone successfully radiographed, under field conditions, a 75 mm diameter steel round bar, for weld defects?

Any help would be appreciated.

BestRegards,
Nick


    
 
 Reply 
 
S.V.Swamy
Engineering, - Material Testing Inspection & Quality Control
Retired from Nuclear Fuel Complex , India, Joined Feb 2001, 787

S.V.Swamy

Engineering, - Material Testing Inspection & Quality Control
Retired from Nuclear Fuel Complex ,
India,
Joined Feb 2001
787
00:56 Dec-03-2005
Re: RT of round bar
Dear Nick,

The curvature of the bar has to be corrected using correction blocks so that the thickness across the weld remains uniform. For that thickness, either a very high voltage x-ray source or Ir-192 source is needed. You may need multiple exposures with the bar being rotated by 90 or 120 degrees. I have not done it but it should be possible. Pl. make an artificial defect standard in the bar and try it out.

Best wishes.

S.V.Swamy

----------- Start Original Message -----------
: I know this is one of the old theoretical problems, but has anyone successfully radiographed, under field conditions, a 75 mm diameter steel round bar, for weld defects?
: Any help would be appreciated.
: BestRegards,
: Nick
------------ End Original Message ------------




    
 
 Reply 
 
David Hermanutz
Consultant,
Hbndt.com, China, Joined Jul 2012, 85

David Hermanutz

Consultant,
Hbndt.com,
China,
Joined Jul 2012
85
05:33 Mar-05-2006
Re: RT of round bar
Hi Nick,

I thought you were a UT hand? I'm taking my RT 2 this week and I'll use it for some math problems and then try it out... don't know how many times I'll need to shoot it but I'm sure it'll be plenty.

DH


----------- Start Original Message -----------
: I know this is one of the old theoretical problems, but has anyone successfully radiographed, under field conditions, a 75 mm diameter steel round bar, for weld defects?
: Any help would be appreciated.
: BestRegards,
: Nick
------------ End Original Message ------------




    
 
 Reply 
 

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