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Questions and Answers
What is the classification number for Metal Inert Gas (MIG) welding according to EN ISO 4063?
What is the classification number for Metal Inert Gas (MIG) welding according to EN ISO 4063?
- #135
- #138
- #131 (correct)
- #139
What is the composition accuracy for minor constituents from 5 to 50% (by volume) of shielding gases?
What is the composition accuracy for minor constituents from 5 to 50% (by volume) of shielding gases?
- $\pm 0.5%$
- $\pm 10%$ (correct)
- $\pm 15%$
- $\pm 5%$
What is the designation for the gas composition 90% Ar - 10% CO2?
What is the designation for the gas composition 90% Ar - 10% CO2?
- M21 (correct)
- M20
- M22
- M19
What is the welding position standard according to EN ISO 6947?
What is the welding position standard according to EN ISO 6947?
What does WN 10570 describe?
What does WN 10570 describe?
What is the purpose of assessment groups in WN 10570?
What is the purpose of assessment groups in WN 10570?
What is the significance of WN 10570-E?
What is the significance of WN 10570-E?
What does Annex A of WN 10570 specify?
What does Annex A of WN 10570 specify?
What certification must manufacturers hold for welding company requirements?
What certification must manufacturers hold for welding company requirements?
Which assessment groups require welded components to be traceable back to the welder?
Which assessment groups require welded components to be traceable back to the welder?
What is required to qualify welds classified as EN ISO 5817 assessment groups 'B' or 'C'?
What is required to qualify welds classified as EN ISO 5817 assessment groups 'B' or 'C'?
When are tolerances required for production not applicable?
When are tolerances required for production not applicable?
How is compliance with other standards verified?
How is compliance with other standards verified?
What does the standard EN 22553 include?
What does the standard EN 22553 include?
What does the standard cover regarding symbols and dimensioning?
What does the standard cover regarding symbols and dimensioning?
What is included in the standard regarding the side of the joint and dimensioning of welds?
What is included in the standard regarding the side of the joint and dimensioning of welds?
What does the standard specify regarding the range of application for welding processes?
What does the standard specify regarding the range of application for welding processes?
Where can the base metals for welding be found in the standard?
Where can the base metals for welding be found in the standard?
What does the standard provide regarding welding methods?
What does the standard provide regarding welding methods?
What is the maximum magnification for examining imperfections per EN ISO 5817?
What is the maximum magnification for examining imperfections per EN ISO 5817?
What should the inspector assure regarding the size, length, and location of welds?
What should the inspector assure regarding the size, length, and location of welds?
When are limits for multiple imperfections applicable according to EN ISO 5817?
When are limits for multiple imperfections applicable according to EN ISO 5817?
What is the purpose of using visual aids such as auxiliary lighting and magnifiers in visual welding inspection?
What is the purpose of using visual aids such as auxiliary lighting and magnifiers in visual welding inspection?
What is the assessment criteria for weld discontinuities and defects in visual welding inspection?
What is the assessment criteria for weld discontinuities and defects in visual welding inspection?
What should the inspector check regarding the size and contour of welds in visual welding inspection?
What should the inspector check regarding the size and contour of welds in visual welding inspection?
What is the maximum distance for two adjacent imperfections to be considered as a single imperfection?
What is the maximum distance for two adjacent imperfections to be considered as a single imperfection?
When are visual aids such as auxiliary lighting and magnifiers required in visual welding inspection?
When are visual aids such as auxiliary lighting and magnifiers required in visual welding inspection?
What is the term used to describe an interruption of the typical structure of a material, such as a lack of homogeneity in its mechanical, metallurgical, or physical characteristics?
What is the term used to describe an interruption of the typical structure of a material, such as a lack of homogeneity in its mechanical, metallurgical, or physical characteristics?
Which type of crack is generally considered to be the most critical type of discontinuity in welding?
Which type of crack is generally considered to be the most critical type of discontinuity in welding?
What is the acceptance criteria for cracks according to EN ISO 5817?
What is the acceptance criteria for cracks according to EN ISO 5817?
What is the acceptance criteria for cracks according to AWS D14.4?
What is the acceptance criteria for cracks according to AWS D14.4?
What is another term for Incomplete Fusion (IF) as per EN ISO 5817?
What is another term for Incomplete Fusion (IF) as per EN ISO 5817?
What is the acceptance criteria for Incomplete Fusion (IF) according to EN ISO 5817?
What is the acceptance criteria for Incomplete Fusion (IF) according to EN ISO 5817?
What is the acceptance criteria for Incomplete Fusion (IF) according to AWS D14.4?
What is the acceptance criteria for Incomplete Fusion (IF) according to AWS D14.4?
What is the alternate term for Incomplete Joint Penetration (IJP) as per EN ISO 5817?
What is the alternate term for Incomplete Joint Penetration (IJP) as per EN ISO 5817?
What is the acceptance criteria for Incomplete Joint Penetration (IJP) according to EN ISO 5817?
What is the acceptance criteria for Incomplete Joint Penetration (IJP) according to EN ISO 5817?
What is the acceptance criteria for Incomplete Joint Penetration (IJP) according to AWS D14.4?
What is the acceptance criteria for Incomplete Joint Penetration (IJP) according to AWS D14.4?
What is the acceptance criteria for inclusions with GMAW according to EN ISO 5817?
What is the acceptance criteria for inclusions with GMAW according to EN ISO 5817?
What is the acceptance criteria for inclusions with GMAW according to AWS D14.4?
What is the acceptance criteria for inclusions with GMAW according to AWS D14.4?
What is the maximum permitted root opening for fillet welds according to EN ISO 5817?
What is the maximum permitted root opening for fillet welds according to EN ISO 5817?
What is the definition of fillet weld size for equal leg fillet welds according to VT Application - ISO 5817?
What is the definition of fillet weld size for equal leg fillet welds according to VT Application - ISO 5817?
What feature of a convex fillet weld limits the maximum size of the inscribed triangle?
What feature of a convex fillet weld limits the maximum size of the inscribed triangle?
What does the measurement technique for fillet weld size need to be capable of determining?
What does the measurement technique for fillet weld size need to be capable of determining?
What does the standard EN ISO 5817 specify regarding arc strikes?
What does the standard EN ISO 5817 specify regarding arc strikes?
What do fillet weld gages need to account for according to VT Application - ISO 5817?
What do fillet weld gages need to account for according to VT Application - ISO 5817?
What is the maximum permitted for measurement of convex fillet welds according to VT Application - ISO 5817?
What is the maximum permitted for measurement of convex fillet welds according to VT Application - ISO 5817?
What is the purpose of measuring the triangle inside the fillet weld according to VT Application - ISO 5817?
What is the purpose of measuring the triangle inside the fillet weld according to VT Application - ISO 5817?
What does the standard EN ISO 5817 specify regarding spatter?
What does the standard EN ISO 5817 specify regarding spatter?
What is the maximum permitted root gap for fillet welds according to AWS D14.4?
What is the maximum permitted root gap for fillet welds according to AWS D14.4?
What is the definition of porosity in welding?
What is the definition of porosity in welding?
What does undercut refer to in welding?
What does undercut refer to in welding?
What is the definition of overlap in welding?
What is the definition of overlap in welding?
What is the definition of convexity in fillet welds?
What is the definition of convexity in fillet welds?
What is the definition of weld reinforcement in butt welds?
What is the definition of weld reinforcement in butt welds?
What is the definition of arc strike in welding?
What is the definition of arc strike in welding?
What is the acceptance criteria for porosity according to EN ISO 5817?
What is the acceptance criteria for porosity according to EN ISO 5817?
What does underfill refer to in welding?
What does underfill refer to in welding?
What is the specific acceptance criteria for undercut according to EN ISO 5817?
What is the specific acceptance criteria for undercut according to EN ISO 5817?
According to EN ISO 5817, what is the acceptance criteria for overlap?
According to EN ISO 5817, what is the acceptance criteria for overlap?
What does visual inspection of welds according to ISO 5817 include?
What does visual inspection of welds according to ISO 5817 include?
Study Notes
Welding Standards and Symbols: Key Highlights
- Manufacturers must hold EN ISO 3834 certification for welding company requirements
- Welded components in compliance with EN ISO 5817 assessment groups "B" or "C" shall be traceable back to the welder
- Welds classified as EN ISO 5817 assessment groups "B" or "C" shall be qualified using a preproduction welding test in accordance with EN ISO 15613
- Tolerances required for production are not applicable for robotic welding
- Compliance with other standards must show equivalence to the standard used
- Compliance with the standard is verified through visual inspection or measuring representative sections
- The standard is an extract from EN 22553 (~ ISO 2553) and includes practical rules and application for drawing up weld seam tables
- Symbols and dimensioning are covered in the standard, including basic, composite, and supplementary symbols
- Rules for depicting the side of the joint and dimensioning of welds are included
- The standard specifies the range of application for welding processes, shielding gases, and filler materials used
- Annex B of the standard lists the base metals for welding
- The standard provides terminology and requirements for welding methods
Visual Inspection of Welds According to ISO 5817
- Porosity is a cavity-type weld discontinuity formed by trapped gas during solidification, with types such as isolated, scattered, piping, elongated, aligned, and cluster.
- Acceptance criteria for porosity according to EN ISO 5817 includes maximum single pore size and maximum cluster diameter, with different limits for weld width.
- Undercut is a groove melted into the base metal adjacent to the weld toe or root, with specific acceptance criteria for maximum depth according to EN ISO 5817 and AWS D14.4.
- Underfill refers to incompletely filled groove weld condition, with acceptance criteria for maximum depth according to EN ISO 5817 and AWS D14.4.
- Overlap is the protrusion of weld metal beyond the weld toe or root, with EN ISO 5817 not permitting overlap and AWS D14.4 allowing none.
- Convexity in fillet welds has specific acceptance criteria for maximum permitted dimensions according to EN ISO 5817 and no limit according to AWS D14.4, controlled by the limit on toe reentrant angle.
- Weld reinforcement is the excess weld metal in butt welds, with specific acceptance criteria based on the angle of reinforcement for both EN ISO 5817 and AWS D14.4.
- Arc strike is a discontinuity resulting from an arc, with specific characteristics and associated processes.
- Visual inspection of welds according to ISO 5817 includes the evaluation and measurement of different discontinuities and weld conditions using specific tools and criteria.
- Different acceptance criteria and limits for various discontinuities and weld conditions are outlined in ISO 5817 and AWS D14.4, providing standards for weld quality assessment.
- The evaluation of welds according to ISO 5817 involves understanding the specific characteristics and measurement methods for different discontinuities and weld conditions.
- ISO 5817 sets specific standards and criteria for the visual inspection and evaluation of weld discontinuities and conditions, providing guidelines for assessing weld quality.
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Description
Test your knowledge of welding standards and symbols with this quiz. Explore key highlights such as EN ISO 3834 certification, EN ISO 5817 assessment groups, preproduction welding tests, robotic welding tolerances, visual inspection, and more.
