sur préparation à bout droit
English translation: square joint preparation
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| 10:07 Oct 21, 2018 |
| French to English translations [PRO] Tech/Engineering - Engineering (general) / welds | |||||||
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|  Selected response from: Johannes Gleim Local time: 21:06 | ||||||
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| 4 +1 | square joint preparation |
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| Discussion entries: 3 | |
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peer agreement (net): +1
peer agreement (net): +1square joint preparation Explanation: • Longueur d’un cordon de soudure L : distance longitudinale de la soudure dans le sens du déplacement de mise en œuvre. • Soudure en bout: soudure réalisée dans l’épaisseur des plats aboutés, dans un assemblage bout à bout ou en té, avec pénétration de matière • Soudure à pleine pénétration (fusion de la soudure et du métal de base complète sur l’épaisseur de l’assemblage) ou à pénétration partielle (celle-ci ne s’étend pas à l’épaisseur totale de l’assemblage): • soudure sans préparation des bords: (Nota : les bouts sont droits) https://notech.franceserv.com/soudure-generalites.html Soudage bout à bout sur bords droits de deux tuyaux : Les tuyaux dont l'épaisseur est inférieure à 4 mm ne nécessitent pas le chanfreinage de leurs bords. Leur soudage s'effectue sur bords droits. Les tuyaux dont l'épaisseur est supérieure ou égale à 4 mm doivent être chanfreinés en V. Généralement, on exécute un chanfrein de 30 à 37,5° sur chaque bord pour former un angle total qui varie de 60 à 75°. Le chanfrein ne doit pas atteindre le fond du joint, un épaulement de 1,6 à 3,2 mm au maximum doit être prévu. Figure 1.95 Préparation des bords des tuyaux https://www.maxicours.com/soutien-scolaire/mecanique-industr... Types There are many types of butt welds, but all fall within one of these categories: single welded butt joints, double welded butt joint, and open or closed butt joints. A single welded butt joint is the name for a joint that has only been welded from one side. A double welded butt joint is created when the weld has been welded from both sides. With double welding, the depths of each weld can vary slightly. A closed weld is a type of joint in which the two pieces that will be joined are touching during the welding process. An open weld is the joint type where the two pieces have a small gap in between them during the welding process. Square butt joints The square-groove is a butt welding joint with the two pieces being flat and parallel to each other. This joint is simple to prepare, economical to use, and provides satisfactory strength, but is limited by joint thickness. The closed square butt weld is a type of square-groove joint with no spacing in between the pieces. This joint type is common with gas and arc welding. For thicker joints, the edge of each member of the joint must be prepared to a particular geometry to provide accessibility for welding and to ensure the desired weld soundness and strength. The opening or gap at the root of the joint and the included angle of the groove should be selected to require the least weld metal necessary to give needed access and meet strength requirements https://en.wikipedia.org/wiki/Welding_joint Dimensions of square butt joint configuration. All dimensions are in mm. https://www.researchgate.net/figure/Dimensions-of-square-but... BUTT JOINTS The square butt joint is used primarily for metals that are 3/16 inch or less in thickness. The joint is reasonably strong, but its use is not recommended when the metals are subject to fatigue or impact loads. Preparation of the joint is simple, since it only requires matching the edges of the plates together; however, as with any other joint, it is important that it is fitted together correctly for the entire length of the joint. It is also important that you allow enough root opening for the joint. Figure 3-23 shows an example of this type of joint http://constructionmanuals.tpub.com/14250/css/Butt-Joints-51... In the process of selecting a suitable butt weld joint preparation for thick plate (greater than 1 in), the most apparent consideration is unquestionably the joint economy – the practice of minimizing the volume of weld metal required to fill the joint. http://www.fabricatingandmetalworking.com/2012/11/choosing-a... For ESW-NG, a square joint preparation will be used, which naturally provides a HAZ normal to the plate surface https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&c... -------------------------------------------------- Note added at 22 hrs (2018-10-22 08:24:53 GMT) -------------------------------------------------- Yesterday, I received the following message from a technically experienced former Proz.com peer, who quotes as follows: My welding glossary includes: Préparation à BORDS relevés - Flanged preparation Préparation sur chant à BORDS droits - Edge weld preparation Préparation BOUT à BOUT à BORDS droits - Square butt preparation Préparation BOUT à BOUT à BORDS droits avec support à l'envers - Square butt preparation with backing ... Préparation en V - Single V preparation The dictionary includes illustrations and definitions (in French). -------------------------------------------------- Note added at 2 days 1 hr (2018-10-23 11:25:26 GMT) -------------------------------------------------- French term or phrase: en bout à bout English translation: butt welding qualified Entered by: Aquamarine76 Summary of reference entries provided butt welding https://www.proz.com/kudoz/french-to-english/construction-ci... French term or phrase: Assemblage bout à bout avec chanfrein des deux bords et reprise envers English translation: butt-jointed assembly with two chamfered edges and backing weld Entered by: Sylvie Saha https://www.proz.com/kudoz/french-to-english/metallurgy-cast... -------------------------------------------------- Note added at 2 days 7 hrs (2018-10-23 17:40:38 GMT) -------------------------------------------------- BTW: the cited glossary entries are not found in any KudoZ glossary, but in "Termes et définitions utilisés en soudage et techniques connexes", Institut de Soudage a Paris. |
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