Welding is a critical process in many industries, and the quality of welds is essential for safety and reliability. ISO 9606-2, the international standard for qualification testing of welders for fusion welding of aluminum and aluminum alloys, provides a systematic approach to ensuring that welders have the skills and knowledge necessary to produce high-quality welds. This paragraph introduces the topic of the article, ISO 9606-2, and its importance in the welding industry. It also provides a brief overview of the standard, highlighting its key features.
ISO 9606-2_Qualification Testing of Welders
1. Introduction
ISO 9606-2:2023 is an international standard that specifies the requirements for qualification testing of welders for fusion welding of aluminium and aluminium alloys. The standard is applicable to manual and partly mechanized welding processes.
The purpose of qualification testing is to ensure that welders have the skills and knowledge necessary to produce welds that meet the required quality standards. The standard defines the procedures and criteria that must be met in order for a welder to be qualified.
2. Scope ISO 9606-2_Qualification Testing of Welders
The standard applies to the qualification of welders for fusion welding of aluminium and aluminium alloys. The standard is applicable to manual and partly mechanized welding processes.
The standard does not apply to the following:
- Welding of aluminium and aluminium alloys by laser or electron beam welding
- Welding of aluminium and aluminium alloys using consumable electrodes with a diameter greater than 4 mm
- Welding of aluminium and aluminium alloys in the fully automatic or robotized mode
3. Requirements
The standard defines the following requirements for qualification testing of welders:
- Welding procedure qualification (WPQ): The welder must demonstrate the ability to produce welds that meet the required quality standards using a specific welding procedure.
- Welder performance qualification (WPQ): The welder must demonstrate the ability to produce welds that meet the required quality standards using a range of welding procedures.
4. Procedures
The standard defines the following procedures for qualification testing of welders:
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WPQ: The WPQ procedure must include the following steps:
- Preparation of the test piece
- Welding of the test piece
- Inspection of the weld
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WPQ: The WPQ procedure must include the following steps:
- Preparation of the test piece
- Welding of the test piece
- Inspection of the weld
- Assessment of the welder's performance
5. Criteria
The standard defines the following criteria that must be met in order for a welder to be qualified:
- WPQ: The weld must meet the required quality standards.
- WPQ: The welder must demonstrate the ability to produce welds that meet the required quality standards consistently.
ISO 9606-2:2023 is an important standard that helps to ensure the quality of welds made from aluminium and aluminium alloys. The standard provides a comprehensive set of requirements and procedures for qualification testing of welders.
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