Welding Process and Technology

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This Presentation is provided to you by: WPSAmerica.com Industry Standard Welding Procedures Software for AWS and ASME Codes Welding Processes and Technology Baldev Raj http://www.igcar.ernet.in/director Materials, Chemical & Reprocessing Groups Indira Gandhi Centre for Atomic Research Kalpakkam – 603 102, Tamilnadu JOINING  Soldering  Produces coalescence of materials by heating to soldering temperature (below solidus of base metal) in presence of filler metal with liquidu
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  This Presentation is provided to you by:   WPSAmerica.com Industry Standard Welding Procedures Software for AWS and ASME Codes    Welding Processes and Technology Baldev Rajhttp://www.igcar.ernet.in/director   Materials, Chemical & ReprocessingGroupsIndira Gandhi Centre for Atomic Research  –   JOINING  Soldering  Produces coalescence of materials by heating tosoldering temperature (  below solidus of base metal  ) inpresence of filler metal with liquidus < 450°C  Brazing  Same as soldering  but coalescence occurs at > 450°C  Welding  Process of achieving complete coalescence of two ormore materials through melting & re-solidification of the base metals and filler metal  Soldering & Brazing  Advantages  Low temperature heat sourcerequired  Choice of permanent or temporary joint  Dissimilar materials can be joined  Less chance of damaging parts  Slow rate of heating & cooling
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