Quality assurance in laser welding: standards and inspection methods for reliable welded joints

Quality assurance plays a very important role in laser welding. In this article, we explain what you need to pay attention to.

Quality assurance plays an essential role in laser welding, where reliable and durable welded joints are the main focus. Specific standards and guidelines that define the quality requirements are crucial in this regard. Leading organizations such as the International Organization for Standardization (ISO) and the American Welding Society (AWS) have developed these standards, which are widely accepted in the industry.

Examples of essential standards for quality assurance

ISO 15614-1:2017: This standard provides detailed specifications for the qualification of welding procedures.
AWS D17.1/D17.1M:2020: Focuses on the assessment of welders and the definition of acceptance criteria for welded joints.
ISO 3834-2:2005: This standard provides guidelines for ensuring welding processes.

Evaluation and control: the core of quality assurance in laser welding

The careful evaluation of welded joints is a crucial part of quality assurance. This is carried out using various inspection methods and techniques.

Visual inspection: the first and essential step

Basic inspection: Careful checking of the welded joint for visible defects. Inspector expertise: Experienced inspectors detect common deviations with the naked eye.

Non-destructive testing (NDT): revealing the invisible

Advanced techniques: Methods such as radiography, ultrasonic testing and magnetic particle testing. Detecting internal defects: These techniques make it possible to identify internal cracks and porosity.

Dye penetrant testing: highlighting for accurate assessment

Use of dye: Highlights defects on the weld surface. Detailed inspection: Helps identify surface-related defects.

X-ray inspection and tensile tests: in-depth analysis

X-ray radiation: For detecting internal defects. Tensile tests: Testing mechanical properties such as tensile strength and ductility.

The application of these specific standards and comprehensive inspection methods, including visual inspection, NDT, dye penetrant testing, X-ray inspection and tensile tests, enables companies to ensure the quality and reliability of their welding processes. As a result, they consistently deliver high-quality welded joints.