DEFINITIONS: Certified Welder: Awelder who has qualified within a range of limitations, by successfully completing a welder performance qualification test, and has been "certified" by the testing official who witnessed the test, certifying that all testing was conducted in accordance with applicable codes and specifications. For example: a certified welder may be "qualified" to weld in the flat position only.
Qualified Welder: A welder who is qualified to perform welding tasks within a specific range of limitations of welding variables. This welder has demonstrated his or her ability, by performance qualification testing, that he or she is qualified to perform welds within specific limitations such as welding process, welding position, material thickness, etc. in conformance with the requirements of a welding code or standard using specific welding variables as described in a Welding Procedure Specification (WPS) Qualification: Quality or accomplishment that fits a person for a specific function, job or task.
Welder Qualification: Specifies the capacity and/or ability of a welder to perform specific welding tasks.
Welder Certification: A Testing Official will "certify" that a welder has successfully completed a welder performance qualification test in conformance to an applicable Welding Code or Standard. Welder Performance Qualification Test: A welding test required to be taken to become qualified to weld under the specified requirements of a welding code or standard, e.g. AWS D1.1
Welder Certification Test: Welder performance qualification test needed to become "certified".
Examples: A "Certified Welder" may only be "Qualified" to weld in the Flat Position or with SMAW welding process. Although this welder is "certified", his or her qualification range has limitations. A "Certified Welder" is only "Qualified" to weld using the welding process he or she tested with (example: SMAW or FCAW, etc). A "Certified Welder" may have tested in accordance with AWS D1.1 on 3/8" steel plate, thus he or she would only be "Qualified" to weld a maximum thickness of 2T or 3/4".
CWI / AWS Certified Welding Inspector: A welding inspector that has been certified by the American Welding Society in accordance with the requirements of AWS QC1 Standard for the Certification of Welding Inspectors. The individual possessing this certification is an individual who has demonstrated having general knowledge of welding and the ability to judge the soundness of welds.