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Quality requirements for welding - Coggle Diagram
Quality requirements for welding
The welding co-ordination
BS EN ISO 14731
welding quality systems standards
BS EN ISO 3834
sections
Part 3 - Quality requirements for welding, fusion welding of metallic materials, standard quality system.
Part 4 - Quality requirements for welding - fusion welding of metallic materials - elementary system.
Part 2 - Quality requirements for welding - fusion welding of metallic materials - comprehensive quality system.
Part 5 - Documents with which it is necessary to conform to claim conformity to the quality requirements of BS EN ISO 3834-2, BS EN ISO 3834-3 or BS EN ISO 3834-4
Part 1 - Guidance for use - describes how the standard works.
Welding co-ordination
BS EN ISO 14731 defines these personnel and the technical knowledge that they require
technical knowledge
routes to demonstrate technical knowledge:
Interview to assess knowledge without IIW qualification (professional review in BS EN ISO 3834 audit).
Externally sub contract to an external subcontractor with appropriate knowledge and experience, again an interview is required (it would be expected that external resource will be familiar with the company applying for certification and will be contracted to visit regularly).
IIW qualification and experience (via interview).
Specific:
Equivalent to the level of an international/European welding technologist.
Basic:
Equivalent to the level of an international/European welding specialist.
Comprehensive:
Equivalent to the level of an international/European welding engineer.
Review of requirements
Welding personnel
welders and welding operators are suitably qualified
welding co-ordination staff have defined responsibilities and that they have suitable authority
Inspection and testing personnel
inspection and testing personnel be sufficiently trained and qualified
Sub-contracting
BS EN ISO 3834 requires that any welding activities that are sub contracted are controlled.
Inspection activities.
Non-destructive testing.
Welding activities.
Post weld heat treatment.
Equipment
list of essential equipment used for production
suitability of equipment
purchasing and testing of new equipment
condition of equipment
maintenance
Technical review
Welding and related activities
production planning
range of activities need to be considered
testing and inspection
environmental considerations
sequence of welding
weld procedure qualifications
welding procedure specifications
work instructions
Welding consumables
storage and handling of welding consumables
control their issue to the shop floor
records should be kept of the temperature and humidity of the storage environment
Storage of parent materials
identification
storage environment
Post weld heat treatment
Procedures
Who writes?
Who approves?
How determined?
Temperature profiles
Equipment
How controlled?
Who controls?
Temperature records
Calibration
Inspection and testing
pre-weld
in-process
post-weld
Non-conformance and corrective actions
identify non-conforming items
re-inspection or testing
control repair or rectification
prevention of recurrence.
Identification and traceability and quality records
quality records
identification and traceability
Calibration/validation of welding equipment
calibration
To size something.
measure against a meter or instrument.
validation
to prove that the equipment is in a reasonable sound and acceptable condition with reference to its
output.
ensure the equipment if fit-for-purpose.