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Use of this materialJS1.1This material is for the sole use of the student indicated. It is not to beduplicated or shared in any form. Failure to abide by the copyright ruleswill result in termination of future access to Acorn material and programs.ObjectivesAfter completing this learningunit you should be able to:SA Identify the different typesof joints and welds Explain the terms andsymbols used for grooveand fillet welds Describe the differentwelding positions Recognize the factorsinvolved in the selection ofjoints Identify and describewelding symbol andsupplementary symbolelements Describe the use ofmultiple reference lines Recognize the factorsinvolved in the selection ofjointsMPLEJoint Design & WeldingSymbolsCWBiacorncwbinstituteBuilding FuturesAcorn Course Student IDThis Acorn document usesAcornMobile QR codesUPDATE 1Copyright 2014 CWB Group Industry Services? acorn.cwbinstitute.orgCWBiAcornMobile
Student Handout for:JS1.1 Joint Design & Welding SymbolscwbinstituteBuilding FuturesTypes of JointsSlide 2Joint: The junction of the workpiece(s) that are to be joined or havebeen joined.Definition of a joint.SAMPLFIG. 1EFaying surface: The mating surface of a workpiece in contact with orin close proximity to another workpiece to which it is to be joined.FIG. 2PAGE 2Copyright 2014 CWB Group Industry ServicesThe faying surfaces of these joints have been marked by a thick black line.
Student Handout for:JS1.1 Joint Design & Welding SymbolscwbinstituteBuilding FuturesBasic Joint TypesSlide 3ReferenceSAMPLEDownload types of jointsin 3D to your phone.FIG. 3Scan using AcornMobileto view this resourcePAGE 3CWBiAcornMobileCopyright 2014 CWB Group Industry ServicesTypes of joints.
Student Handout for:JS1.1 Joint Design & Welding SymbolscwbinstituteBuilding FuturesBasic Types of WeldsSlide 4There are three basic types of welds:1. Groove welds2. Fillet welds3. Plug and slot weldsOther types of welds include:EArc spot and seam weldsEdge weldsFlange weldsSurfacing weldsSeal weldsMPL Groove WeldSlide 5SAA groove weld is a weld made in aweld groove on a workpiece surface,between workpiece edges, betweenworkpiece surfaces, or betweenworkpiece edges and surfaces. Thereare many different shapes of grooves.The figure shows one type of grooveweld.FIG. 4PAGE 4Copyright 2014 CWB Group Industry ServicesA groove weld.
Student Handout for:JS1.1 Joint Design & Welding SymbolscwbinstituteBuilding FuturesFillet WeldSlide 6ReferenceCWBiAcornMobileFIG. 5Fillet welds in corner, T- and lap joints.SAA fillet weld is a weld of approximately triangular cross section joining twosurfaces approximately at right anglesto each other in a lap joint, T-joint, orcorner joint as shown.MPLScan using AcornMobileto view this resourceEDownload fillet welds incorner, T- and lap joints in3D to your phone.PAGE 5Copyright 2014 CWB Group Industry Services
Student Handout for:JS1.1 Joint Design & Welding SymbolscwbinstituteBuilding FuturesPlug and Slot WeldSlide 7ReferenceScan using AcornMobileto view this resourceCWBiAcornMobileFIG. 6Plug and slot welds.SAA plug weld is a weld made in a circular hole in one member of a joint fusing that member to another member.A slot weld is similar to a plug weldexcept that the hole is elongated.MPLEDownload plug and slotwelds in 3D to your phone.In preparation for plug and slotwelds, holes or slots are made inthe upper plate. On thinner materialthese welds can be made withoutholes or slots and are called arc spotand arc seam welds, in which theupper sheet is melted and fused tothe lower sheet.PAGE 6Copyright 2014 CWB Group Industry Services
Student Handout for:JS1.1 Joint Design & Welding SymbolscwbinstituteBuilding FuturesArc Spot and Arc Seam WeldsSlide 8ReferenceScan using AcornMobileto view this resourceCWBiAcornMobileFIG. 7Arc spot and arc seam welds.SAArc spot and arc seam welds are usedwhen attaching gauge metals such asroof deck to supporting steel using anelectric arc welding process.MPLEDownload arc spot and arcseam welds in 3D to yourphone.PAGE 7Copyright 2014 CWB Group Industry Services
Student Handout for:JS1.1 Joint Design & Welding SymbolscwbinstituteBuilding FuturesSurfacing WeldsSlide 9SAMPLEA surfacing weld is a weld applied toa surface, as opposed to making ajoint, to obtain the desired propertiesor dimensions.FIG. 8PAGE 8Copyright 2014 CWB Group Industry ServicesExamples of surfacing welds.
Student Handout for:JS1.1 Joint Design & Welding SymbolscwbinstituteBuilding FuturesEdge WeldsSlide 10ReferenceSAMPLEDownload edge welds in3D to your phone.Scan using AcornMobileto view this resourceCWBiAcornMobileAn edge weld is a weld in an edgejoint, a flanged butt joint or a flangedcorner joint, in which the full thickness of the members are fused. Theyare neither groove welds or filletwelds and they are not surfacingwelds because these welds are forming a joint along two members.FIG. 9PAGE 9Copyright 2014 CWB Group Industry ServicesEdge welds.
Student Handout for:JS1.1 Joint Design & Welding SymbolscwbinstituteBuilding FuturesClassification of Groove WeldsSlide 11Groove welds can be classified: In terms of efficiency: complete joint penetration groove welds (CJP) partial joint penetration groove welds (PJP)E In terms of shape: Square Bevel “V” “J” “U” Flare-bevel Flare-VSAMPLThe illustration shows the classification system.PAGE 10Copyright 2014 CWB Group Industry Services
Student Handout for:JS1.1 Joint Design & Welding SymbolscwbinstituteBuilding FuturesClassification of Groove WeldsSAMPLESlide 11FIG. 10PAGE 11Copyright 2014 CWB Group Industry ServicesClassification of welds.
Student Handout for:JS1.1 Joint Design & Welding SymbolscwbinstituteBuilding FuturesSingle Groove WeldsSlide 12ReferenceDifferent types of single groove welds.SAMPLFIG. 11EDownload different typesof single groove welds in3D to your phone.Scan using AcornMobileto view this resourcePAGE 12CWBiAcornMobileCopyright 2014 CWB Group Industry Services
Student Handout for:JS1.1 Joint Design & Welding SymbolscwbinstituteBuilding FuturesSingle Groove WeldsSlide 12ReferenceMPLEDownload different typesof single groove welds in3D to your phone.Different types of single groove welds - continued.SAFIG. 11Scan using AcornMobileto view this resourcePAGE 13CWBiAcornMobileCopyright 2014 CWB Group Industry Services
Student Handout for:JS1.1 Joint Design & Welding SymbolscwbinstituteBuilding FuturesDouble Groove WeldsSlide 13ReferenceMPLEDownload different typesof double groove welds in3D to your phone.Different types of double groove welds.SAFIG. 12Scan using AcornMobileto view this resourcePAGE 14CWBiAcornMobileCopyright 2014 CWB Group Industry Services
Download plug and slot welds in 3D to your phone. Reference. A plug weld is a weld made in a circu-lar hole in one member of a joint fus-ing that member to another member. A slot weld is similar to a plug weld except that the hole is elongated. In preparation for plug and slot welds, holes or
