Overview
EN ISO 14744-6:2000 - Welding - Acceptance inspection of electron beam welding machines - Part 6: Measurement of stability of spot position (ISO 14744-6:2000) defines how to measure the stability of the electron-beam spot position during acceptance inspection of EB welding machines. The standard specifies the essential information on the procedure and apparatus to be used for these measurements and is intended for machines complying with prEN ISO 14744-1. Stability of the spot position is a critical performance parameter for prolonged welding and for electron beam welding with automatic workpiece positioning.
Key topics and requirements
- Purpose and scope: Describes use during acceptance inspection to confirm spot-position stability on electron beam welding machines.
- Measurement focus: Concentrates on the stability of the electron beam spot (focal spot) position over time and under operating conditions.
- Procedure and apparatus guidance: Provides essential information about the types of measurement arrangements and general procedural steps required to obtain meaningful, repeatable stability data.
- Relation to acceptance testing: Intended to be applied when verifying compliance with the requirements set out in prEN ISO 14744-1 for EB welding equipment.
- Performance relevance: Emphasizes the importance of spot-position stability for extended welding runs and automated welding systems where positional accuracy directly affects weld quality.
(Note: the standard provides procedural and apparatus guidance; it does not replace machine-specific commissioning procedures or manufacturer documentation.)
Applications
- Commissioning and acceptance testing of new electron beam welding machines.
- Factory acceptance tests (FAT) and site acceptance tests (SAT) for EB welders.
- Quality assurance for automated electron beam welding lines where positional drift can cause defects.
- Periodic verification and maintenance checks to detect degradation of beam positioning systems.
- Support for procurement and contract acceptance criteria where measurable spot stability is required.
Who uses this standard
- Welding engineers and QA/QC inspectors performing acceptance inspections.
- Machine manufacturers and integrators validating machine performance.
- Maintenance teams responsible for calibration and long-term stability.
- Certification bodies and test laboratories conducting compliance testing.
- Procurement and project managers specifying acceptance criteria for EB welding equipment.
Related standards
- prEN ISO 14744-1 (requirements for electron beam welding machines) - to be used in conjunction with EN ISO 14744-6:2000.
- Other parts of the ISO 14744 series addressing acceptance tests and performance criteria for EB welding equipment.
Keywords: EN ISO 14744-6:2000, electron beam welding, spot position stability, acceptance inspection, measurement procedure, welding equipment, EB welding machines.