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Doppelungen

English translation: Dopplung = Lamination

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19:46 Apr 19, 2001
German to English translations [PRO]
Tech/Engineering
German term or phrase: Doppelungen
context: welding
"US-Prüfung:
Pos. 5 und 9 auf Doppelungen
Pos. 10 an 9 - 100%
Doppelungen wurden nicht festgestellt. Das Ergebnis der Prüfungen an den Schweißverbindungen ergab Fehlerfreiheit."

Are these double-welds, or is there some other type of "doubling" in welding that is not desired?
Thanks very much in advance!
Beth Kantus
United States
Local time: 01:37
English translation:Dopplung = Lamination
Explanation:
If the material to be welded is plate or sheet products, then I agree that the most likely translation is "laminations". Laminations are defects in the material, and can cause severe problems during the welding process.
Selected response from:

katermurr
Grading comment
Thanks very much to all for your help!
4 KudoZ points were awarded for this answer

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Summary of answers provided
naDopplung = Laminationkatermurr
nalaminationsUlrike Lieder
na[type of defect in material, e.g. metal]
Tom Funke


  

Answers


2 hrs
[type of defect in material, e.g. metal]


Explanation:
Hi Beth,
(Auch: Dopplungen)
I have enough info to support the thesis that this is a defect present in the Werkstoff (e.g., sheetmetal, plate or pipe being welded) and not resulting from the welding process, but I haven't found an English term yet and regretfully have to back off this now. The last URL provides a clue as to the possible nature of the defect ... Have fun! :-)

GRUNDWERKSTOFF- BZW. OBERFLÄCHENFEHLER:
(A) Risse, Porennester, Doppelungen, Einfallstellen, Wirbelungen und Lunker in der Grundwerkstoffoberfläche
RÜCKWIRKUNG AUF DAS GALVANISIERTE BAUTEIL UND/ODER DEN ÜBERZUG
(A’) Auftreten von Poren, Rissen und Pusteln im Überzug.
Blasenbildung im oberflächennahen Bereich des Grundwerkstoffs.
Unterkorrosion des Grundwerkstoffs durch Elektrolytreste.
Abplatzen des Überzugs.
http://www.heid-metallveredelung.de/kons.htm

Was hilft es, wenn das Blech mit US auf Doppelung geprüft ist oder die ausgekreuzte Naht mit Magnet- oder Farbeindringungsprüfung auf Risse untersucht wird, und trotzdem verwechselter Werkstoff verschweißt wurde.
http://www.ndt.net/abstract/dgzfp98/data/p5.htm

Oberwalzungen und Dopplungen können sowohl Blasenbildung (Wasserstoff) als auch Unterkorrosion eingeschlossene Elektrolytreste) bewirken.
http://www.heid-metallveredelung.de/kons.htm

PDF] www.dorf.rwth-aachen.de/~marco/bauwesen/bsk-3.pdf
Baustoffkunde III - Stahl und ... Lunker verschweißen, sonst Dopplungen (Werkstofftrennungen)
* Blockguß: heute kaum ... zB: - Zink - verzinktes Blech - Kupfer bei ...



    [dictionaries -- not helpful -- and] Google
Tom Funke
Local time: 01:37
Native speaker of: English
PRO pts in pair: 2419
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3 hrs
laminations


Explanation:
Dopp(e)lung - lamination (e.g. check for laminations)

Don't know if that'll fit into your context, but that's what my WB Stahlbau has to offer.

Hope it helps

Ulrike Lieder
Local time: 22:37
Native speaker of: German
PRO pts in pair: 3525
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3 days 23 hrs
Dopplung = Lamination


Explanation:
If the material to be welded is plate or sheet products, then I agree that the most likely translation is "laminations". Laminations are defects in the material, and can cause severe problems during the welding process.


    Metallurgical Engineer
katermurr
PRO pts in pair: 4
Grading comment
Thanks very much to all for your help!
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