Welding Qualification and Certification Quiz

Welding Qualification and Retesting Procedures Overview

• Welds must meet specific visual examination criteria before bend tests.
• Criteria include limits for lack of root penetration and acceptable face and root reinforcement.
• Retesting is required in case of initial qualification failure, with thorough checks and corrective actions.
• In case of retest failure, further training and qualification for the lowest class are mandated.
• If further failure occurs, retraining is needed before attempting further tests for upgrade.
• Test assemblies that passed but were not recognized due to lower class failure remain valid for 3 months.
• Different provisions apply for initial qualification tests and upgrading.
• Welders and welding operators must be qualified by welding a groove weld test assembly and a fillet weld test assembly.
• Specific guidelines exist for preparing guided bend test specimens for pipe and plate test assemblies.
• Welders and welding operators in S classification must be qualified by welding specific test assemblies.
• The extent of validity of qualification with a given F group of electrodes for the SMAW process is specified in a table.
• Detailed requirements are provided for welder and welding operator qualification for different welding processes and electrode diameters.

CSA W47.1:19 Certification of Companies for Fusion Welding of Steel

• Root pass of each weld in specific locations indicated in Figures 8 and 9 must have one stop and restart.
• For mechanical testing, three guided bend test specimens (two root- and one face-bend) shall be prepared from each test assembly at the locations shown in Figures 8 and 9.
• Test specimens for mechanical testing shall have the weld ground smooth and the backing removed to within 3 mm of its thickness.
• The size and finished profile of the applicable test specimens shall be as shown in Figures 15 and 16.
• Welders and welding operators are classified based on qualification by welding fillet weld test assemblies specified in Table 2 and illustrated in Figure 6.
• Welders and welding operators must be qualified on one test assembly in each position of welding in which they are to weld.
• Before test specimens are cut from each test assembly, the weld shall be visually examined for compliance with Figure 14 and Clause 9.14.3.5.1.
• Initial qualification tests for welding personnel are outlined in Table 3, and in case of failure, only one retest without additional training is permitted.
• Tack welders shall be qualified for each welding process used for tacking and must pass the prescribed tack welding test.
• A tack welder who passes the fillet weld break test is eligible to tack weld all types of joints for the process and in the positions in which he/she has qualified.
• For robotic welding personnel, the certification requirements for robotic welding programmers are specified.
• Robotic welding programmers must be qualified and certified according to the standards outlined in the document.

Robotic Welding Programmer and Operator Qualifications

• Robotic welding programming by company personnel requires at least one qualified robotic welding programmer.
• Third party supplied programs do not require testing.
• Robotic welding operators must be qualified by welding a test assembly or a production test assembly as per the program's requirements.
• Testing includes confirming completed weld profiles and extracting macro-etch specimens from the production test assembly.
• Macro-etched test specimens must conform to specific requirements, including fusion to the root of the joint and meeting specified weld sizes.
• Robotic welding programmers and operators are exempt from initial, upgrade, or check testing requirements.
• In case of failure, one retest without additional training is allowed, but further failures require retraining.
• The company must have welding procedure specifications for each welding process in use, accepted by the CWB.
• Welding procedure data sheets (WPDSs) must be prepared and submitted to the CWB for review and acceptance, including prequalified and non-prequalified joints.
• WPDSs should include all geometric details and parameters specified in the code, and be available for use by welding supervisors and authorized personnel.
• Companies welding deformed reinforcing bars to steel elements may apply testing requirements and have their WPDS accepted in accordance with the standard.
• Deformed bar is a hot-rolled weldable product that conforms to CSA G30.

Robotic Welding Programmer and Operator Qualifications

• If the company's personnel program the robots, they need at least one qualified robotic welding programmer.
• The programmer must prove their ability during testing and adjust the program during production.
• If the program is supplied by a third-party company, the programmer does not require testing.
• Robotic welding operators can qualify by welding a test assembly or a production test assembly.
• The completed welds must meet specific profiles confirmed by the CWB's representative.
• Test assemblies must be cut to extract macro-etch specimens representing each type of joint and welding position.
• Test results require visual inspection and must meet specific requirements for fusion, leg size, cracks, and weld profiles.
• Robotic welding programmers and operators are not required to follow initial, upgrade, or check testing requirements.
• In case of failure, one retest without additional training is allowed for the programmer and operator.
• Further failure requires additional training before another test attempt.
• The company must have welding procedure specifications for each welding process, submitted to the CWB for acceptance.
• Welding procedure data sheets (WPDSs) must be prepared for welded joints, reviewed and accepted by the CWB.

Test your knowledge of welding qualification and retesting procedures, as well as certification requirements for robotic welding programmers and operators. This quiz covers criteria for weld visual examination, retesting procedures, mechanical testing, qualification by welding specific test assemblies, and requirements for welding procedure data sheets. Ideal for welding professionals, inspectors, and anyone seeking to enhance their understanding of welding certification standards.