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Welding Symbols (ISO 2553) and Weld Joint Design

Welding Symbols (ISO 2553) and Weld Joint Design. ELEMENTARY WELD SYMBOLS. Square Groove Weld. Single V Groove Weld. ELEMENTARY WELD SYMBOLS. Single Bevel Groove Weld. Single V Groove Weld with Broad Root Face. ELEMENTARY WELD SYMBOLS. Single Bevel Groove Weld with Broad Root Face.

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Welding Symbols (ISO 2553) and Weld Joint Design

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  1. Welding Symbols(ISO 2553)and Weld Joint Design

  2. ELEMENTARY WELD SYMBOLS Square Groove Weld Single V Groove Weld

  3. ELEMENTARY WELD SYMBOLS Single Bevel Groove Weld Single V Groove Weld with Broad Root Face

  4. ELEMENTARY WELD SYMBOLS Single Bevel Groove Weld with Broad Root Face Single U Groove Weld

  5. ELEMENTARY WELD SYMBOLS Single J Groove Weld Backing Weld

  6. ELEMENTARY WELD SYMBOLS Fillet Weld Plug / Slot Weld

  7. ELEMENTARY WELD SYMBOLS Spot Weld Seam Weld

  8. ELEMENTARY WELD SYMBOLS Edge Weld Surfacing

  9. SUPPLEMENTARY SYMBOLS Weld Profile Flat Convex Concave

  10. SUPPLEMENTARY SYMBOLS M MR Toes blended smoothly Permanent Backing Strip Removable Backing Strip

  11. SUPPLEMENTARY SYMBOLS Peripheral Welds

  12. SUPPLEMENTARY SYMBOLS Site welds

  13. SUPPLEMENTARY SYMBOLS Tail Optional) Sequence of Information in the Tail • Process (as per ISO 4063) • Acceptance Level (as per ISO 5817 or ISO 10042) • Working Position (as per ISO 6947) • Filler Materials (as per ISO 544 or ISO 2560 or ISO 3581)

  14. EXAMPLES OF APPLICATION Method of representation Reference Line (Continuous) Reference Line (Dashed) Arrow Line Weld Joint

  15. EXAMPLES OF APPLICATION Welding on the Arrow Side Arrow Side Other Side

  16. EXAMPLES OF APPLICATION Welding on the Other Side Arrow Side Other Side

  17. EXAMPLES OF APPLICATION Welding on the Other Side Arrow Side Other Side

  18. EXAMPLES OF APPLICATION Welding on the Arrow Side Arrow Side Other Side

  19. EXAMPLES OF APPLICATION Which is the Other Side in this case? Side B Side A Side D Side C

  20. EXAMPLES OF APPLICATION Welding on both Sides Arrow Side Other Side

  21. EXAMPLES OF APPLICATION Symmetric Welding on both Sides

  22. EXAMPLES OF APPLICATION Pointing of Arrows for Bevel and J Joints OR

  23. EXAMPLES OF APPLICATION Pointing of Arrows for Bevel and J Joints

  24. DIMENSIONING OF WELDS Butt Joints l s l s

  25. DIMENSIONING OF WELDS Fillet Welds 5 z5 l 5 a5 l 5

  26. DIMENSIONING OF WELDS Fillet Welds a a a

  27. (e) (e) l l DIMENSIONING OF WELDS Intermittent Fillet Welds z n x l (e) z n x l (e)

  28. DIMENSIONING OF WELDS Staggered Intermittent Fillet Welds z n x l (e) z n x l (e) (e) (e) l l (e) (e) l l

  29. DIMENSIONING OF WELDS Spot Weld d n (e) e e d

  30. DIMENSIONING OF WELDS Seam Weld d n x l (e) l e d

  31. DIMENSIONING OF WELDS Plug Weld d n (e) e e d

  32. DIMENSIONING OF WELDS Slot Weld d n x l (e) e l d

  33. WELD JOINT DESIGN

  34. Edge Preparation - Need Poor penetration Poor strength Good penetration Good strength (100% joint efficiency)

  35. Edge Preparation Factors which influence choice of edge preparation - Thickness - Material - Welding process - Extent of penetration required - Welding distortion - Cost

  36. Basic Joint Types butt lap tee corner edge

  37. Basic Weld Types Groove welds Fillet weld Plug / slot weld Spot / seam weld

  38. Applicable Welds for Butt joint Square Groove weld V Groove weld U Groove weld Bevel Groove weld J Groove weld

  39. Applicable Welds for Butt joint Double V Groove weld Double Bevel Groove weld Double U Groove weld Double J Groove weld

  40. Applicable Welds for Tee joint

  41. Applicable Welds for Lap joint Fillet weld Plug / slot weld Spot / seam weld

  42. Applicable Welds for Corner Joint

  43. Applicable Welds for Edge Joint Edge weld

  44. Butt joint Square Groove weld Root gap

  45. Butt joint Single V Groove weld Groove angle  Root face Root gap

  46. Weld Reinforcement Correct reinforcement Minimum cost Good joint strength Excess reinforcement High cost Poor joint strength Under reinforcement Poor joint strength

  47. Butt joint – Complete Joint penetration Weld from face side Back gouging Back weld

  48. Butt joint – Complete Joint penetration Backing weld Back gouging

  49. Butt joint – Complete Joint penetration (welding from one side) TIG / SMAW welding Consumable guide

  50. Butt Joint – Double V groove Less weld metal Less distortion Higher edge preparation cost Better for thickness > 20 mm Double V groove Single V groove More weld metal More distortion Lower edge preparation cost Better for thickness < 20 mm

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