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Norwegian NDT conference
NDTAA Symposium South Australian Institute of Technology, 17th February, 1971. The South Australian Branch of the Non-Destructive Testing Association of Australia held its f i r s t Symposium on Wednesday 17th F e b r u a r y , 1971. Eighty seven delegates, including thirteen interstate v i s i t o r s , gathered at the new ' L e v e l s C a m p u s ' of the South Australian Institute of Technology to hear seven technical papers. Mr. H. S. Dean, r e p r e s t i n g the SA Industrial Development Branch, officially opened the Symposium and commented on the value of ndt to industry in maintaining standards of workmanship and m a t e r i a l s , and on the need to educate m a n u f a c t u r e r s to make even g r e a t e r use of such such methods. M e s s r s . C. Charman and P. M a y b e r r y commenced the technical proceedings with a joint paper,detailing e d d y - c u r r e n t and ultrasonic techniques used in p r o duction-line testing of steel tubing at the BTM Division of T u b e m a k e r s of Australia Ltd; e d d y - c u r r e n t testing is used on tubing less than 11/4 in diameter and 16 S.W.G. wall thickness, whereas ultrasonic t e s t s , u s i n g surface and s h e a r waves, are p e r f o r m e d on tube of diameter up to 31/2 in and wall thickness up to 1/4 in. Iu his paper 'NDT--Who is whom ', Mr. G. Humphries of Agfa-Gevaert Ltd. posed s e v e r a l thought provoking questions, such as 'Should there not be more c o m munication between m a n u f a c t u r e r s and u s e r s on the requirements of ndt m a t e r i a l s and equipment ? ' The first interstate speaker M r . W . H e m m y from Defence Standards L a b o r a t o r i e s , Melbourne, then discussed the physiological and psychological aspects of r a d i o graph viewing. He stated that two important mechanisms work in tandem in human v i s i o n , n a m e l y detection whereby the brain r e c e i v e s a signal that an item of interest has entered the field of view and then scrutiny where the item is identified. A r a d i o g r a p h e r should have well developed 'figure-ground p~rception' and 'percentual c o n s t a n c y ' and should use a viewing
s c r e e n which has a luminance of 5 x 104 view films of density 3.
cd/m 2, to
After an excellent s m o r g a s b o a r d lunch, delegates spent some time looking at exhibits of the latest ndt e q u i p m e n t , a r r a n g e d adjacent to the symposium lecture theatre. Mr. F. T a r r a n t then presented a paper detailing the use by the South Australian Railways of ultrasonic testing techniques. He discussed the need for testing, the types and locations of flaws detected, and the various techniques which have been tried. In the testing of f r e i g h t - c a r axles, satisfact o r y results have been obtained using a 37 ° angle probe generating t r a n s v e r s e waves and testing f r o m the b a r r e l of the axle;it is possible with this t e c h nique to detect grooves 0. 002 in deep in a 7-in d i a m e t e r axle. M r . A . M c F a r l a n e , of the SA Institute of Technology, r e p o r t e d briefly on an experimental technique using m i c r o w a v e s to m e a s u r e m o i s t u r e - c o n t e n t in foundry sands. Although the method had been in use for only a few days, r e s u l t s had been encouraging and the moisture had been kept at the r e q u i r e d level with little difficulty. The use of ultrasonic testing at Australian Iron and Steel Pty Ltd, P o r t Kembla, NSW, in testing b i l l e t s , s l a b s and plate, and as a preventive maintenance tool, was then well illustrated by Mr. R. Kimmins. The Deputy R e g i s t r a r of the National Association of Testing Authorities, Mr. K. Stanton, spoke about 'The Role of NATA in relation to ndt'. After briefly outlining the h i s t o r y and general requirements of NATA, he detailed the special needs of ndt,in p a r t i c u l a r staff c a t e g o r i e s and education r e q u i r e m e n t s , and led discussion on the part NDTAA could play to achieve uniform ndt education standards throughout Australia. J. H. Cole
Norwegian NDT Conference March 21-23, Kuraenter, Norway The 1st Norwegian Conference on Non-Destructive Testing was held on March 21-23 at the Hurdaissjoen Hotel in Kuraenter. The Conference was fully booked with about 85 delegates attending, and some dozen agencies, r e p r e s e n t ing 18 companies put on a small exhibition which p r o vided a focal point for detailed discussions. In typical Continential fashion the conference was opened after dinner on March 21st with a talk by Aka Junghem--Technical Manager of Tekniska Rontgencentralen, Sweden--on the 'NDT' of Boiling water R e a c t o r s ' . This was to me the most interesting lecture of the conference and described advanced ultrasonic scanning s y s t e m s used on the l a r g e 18m high by 5m d i a m e t e r p r e s s u r i s e d containers. After the exhibition opened on the f i r s t evening, the conference settled down to a much more sober level with a session on ndt techniques, split into three lect u r e s on Radiography, Ultrasonics, and other Testing 204
non-destructive testing June 1971
Methods. After lunch the techniques were illustrated by a number of films including the new Institute of Welding film made in England, and this introduced a session on methods of training and qualification; a r e p o r t on international activity, and a discussion s e s s i o n o n h o w ndt in Norway should be organised. Delegates w e r e about evenly divided on this last issue Some favouring the formation of a new society, whilst the others felt that a special section should be p r o moted by an existing Engineering Society. This was therefore left for further discussion. March 23rd was devoted to descriptions of p r a c t i c a l applications of NDT; in the morning on welds, and in the afternoon on castings and forgings. The Exhibition was open each evening and between lecture sessions, and the conference finished at 4.00 4.00pm on Tuesday. G. R. Williams
s c r e e n which has a luminance of 5 x 104 view films of density 3.
cd/m 2, to
After an excellent s m o r g a s b o a r d lunch, delegates spent some time looking at exhibits of the latest ndt e q u i p m e n t , a r r a n g e d adjacent to the symposium lecture theatre. Mr. F. T a r r a n t then presented a paper detailing the use by the South Australian Railways of ultrasonic testing techniques. He discussed the need for testing, the types and locations of flaws detected, and the various techniques which have been tried. In the testing of f r e i g h t - c a r axles, satisfact o r y results have been obtained using a 37 ° angle probe generating t r a n s v e r s e waves and testing f r o m the b a r r e l of the axle;it is possible with this t e c h nique to detect grooves 0. 002 in deep in a 7-in d i a m e t e r axle. M r . A . M c F a r l a n e , of the SA Institute of Technology, r e p o r t e d briefly on an experimental technique using m i c r o w a v e s to m e a s u r e m o i s t u r e - c o n t e n t in foundry sands. Although the method had been in use for only a few days, r e s u l t s had been encouraging and the moisture had been kept at the r e q u i r e d level with little difficulty. The use of ultrasonic testing at Australian Iron and Steel Pty Ltd, P o r t Kembla, NSW, in testing b i l l e t s , s l a b s and plate, and as a preventive maintenance tool, was then well illustrated by Mr. R. Kimmins. The Deputy R e g i s t r a r of the National Association of Testing Authorities, Mr. K. Stanton, spoke about 'The Role of NATA in relation to ndt'. After briefly outlining the h i s t o r y and general requirements of NATA, he detailed the special needs of ndt,in p a r t i c u l a r staff c a t e g o r i e s and education r e q u i r e m e n t s , and led discussion on the part NDTAA could play to achieve uniform ndt education standards throughout Australia. J. H. Cole
Norwegian NDT Conference March 21-23, Kuraenter, Norway The 1st Norwegian Conference on Non-Destructive Testing was held on March 21-23 at the Hurdaissjoen Hotel in Kuraenter. The Conference was fully booked with about 85 delegates attending, and some dozen agencies, r e p r e s e n t ing 18 companies put on a small exhibition which p r o vided a focal point for detailed discussions. In typical Continential fashion the conference was opened after dinner on March 21st with a talk by Aka Junghem--Technical Manager of Tekniska Rontgencentralen, Sweden--on the 'NDT' of Boiling water R e a c t o r s ' . This was to me the most interesting lecture of the conference and described advanced ultrasonic scanning s y s t e m s used on the l a r g e 18m high by 5m d i a m e t e r p r e s s u r i s e d containers. After the exhibition opened on the f i r s t evening, the conference settled down to a much more sober level with a session on ndt techniques, split into three lect u r e s on Radiography, Ultrasonics, and other Testing 204
non-destructive testing June 1971
Methods. After lunch the techniques were illustrated by a number of films including the new Institute of Welding film made in England, and this introduced a session on methods of training and qualification; a r e p o r t on international activity, and a discussion s e s s i o n o n h o w ndt in Norway should be organised. Delegates w e r e about evenly divided on this last issue Some favouring the formation of a new society, whilst the others felt that a special section should be p r o moted by an existing Engineering Society. This was therefore left for further discussion. March 23rd was devoted to descriptions of p r a c t i c a l applications of NDT; in the morning on welds, and in the afternoon on castings and forgings. The Exhibition was open each evening and between lecture sessions, and the conference finished at 4.00 4.00pm on Tuesday. G. R. Williams