{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.flux-cored-arc-welding","code":"thing-q2180429","url":"https://ver.cy/models/thing/q2180429/","name":"Flux-cored arc welding","alternateNames":[],"kind":"thing","status":"published","version":"0.1.0-research.1","language":"en","classifiers":{"family":"Thing Registry","category":"Activities and processes","entryKind":"thing","plane":"ACT","domain":["ACT.PRC"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"Flux-cored arc welding is a fusion welding process in which an electric arc between a continuously fed tubular, flux-containing consumable electrode and the workpiece melts the electrode and base metal, with shielding supplied by the electrode contents, an externally supplied gas, or both.","purpose":"Enable an AI agent to recognise flux-cored arc welding, assess whether a proposed or observed operation matches its documented requirements, and identify justified next actions.","scope":{"in":["Identification of flux-cored arc welding and its self-shielded and gas-shielded variants","Compatibility of the flux-cored electrode, shielding arrangement, workpiece, and welding procedure","Process setup and actual operating conditions at weld-pass level","Slag management, pass sequencing, and interruptions","Process-specific readiness, inspection evidence, deviations, and disposition"],"out":["Manufacture and complete material specifications of flux-cored wire","Design and maintenance of welding power sources, feeders, guns, and gas systems","Structural design and fitness-for-service assessment of the finished assembly","Complete models of solid-wire gas metal arc welding, shielded metal arc welding, and submerged arc welding","Personnel certification systems and general workplace safety management"],"boundaries":[]},"distinguishingFeatures":["The operation uses a continuously fed consumable tubular electrode containing flux; a shared wire-feeding machine alone does not establish FCAW identity. [TWI process overview](https://www.twi-global.com/technical-knowledge/faqs/flux-cored-arc-welding-fcaw)","Record whether the electrode requires external shielding gas or is designed for self-shielding; gas supply alone does not distinguish FCAW from other wire-fed processes. [TWI consumables guidance](https://www.twi-global.com/technical-knowledge/job-knowledge/welding-consumables-part-4-085)","Distinguish the continuously fed flux-cored electrode from the discrete externally flux-coated electrode used in shielded metal arc welding. [TWI arc-welding overview](https://www.twi-global.com/technical-knowledge/faqs/what-is-arc-welding)","A tubular wire is insufficient evidence by itself: establish whether its filling is flux or principally metal powder and retain the applicable process classification. [TWI wire-electrode overview](https://www.twi-global.com/technical-knowledge/job-knowledge/mig-welding-004)"],"structure":{"bundles":[{"id":"process-identity-and-boundaries","name":"Process identity and boundaries","description":"Establish whether the operation belongs to FCAW and which shielding variant applies.","layers":[{"id":"electrode-and-arc-identity","name":"Electrode and arc identity","description":"Identify the electrode construction and how it participates in the operation.","findings":[{"id":"fcaw-identification-evidence","name":"FCAW identification evidence","description":"Record the evidence supporting classification as continuous consumable flux-cored electrode arc welding.","questions":[{"text":"What electrode documentation and process observations establish that this operation uses a continuously fed flux-cored consumable electrode?","id":"fcaw-identification-evidence-q01","kind":"definition"},{"text":"Does the evidence distinguish this operation from solid-wire, metal-cored, stick-electrode, and submerged arc welding?","id":"fcaw-identification-evidence-q02","kind":"boundary"}]}]},{"id":"shielding-variant-and-terminology","name":"Shielding variant and terminology","description":"Resolve shielding requirements and the meaning of the process name used in records.","findings":[{"id":"variant-assignment","name":"Variant assignment","description":"Retain the shielding variant together with the documentation and classification convention supporting it.","questions":[{"text":"Does the selected electrode require external shielding gas or specify self-shielded operation?","id":"variant-assignment-q01","kind":"definition"},{"text":"Which manufacturer document or procedure establishes that requirement?","id":"variant-assignment-q02","kind":"provenance"},{"text":"Does a local label such as 'dual shield' identify only gas-shielded FCAW or ambiguously refer to the whole process family?","id":"variant-assignment-q03","kind":"boundary"}]}]}]},{"id":"consumable-and-joint-compatibility","name":"Consumable and joint compatibility","description":"Connect the actual flux-cored wire and joint conditions to the intended weld requirements.","layers":[{"id":"wire-selection-and-condition","name":"Wire selection and condition","description":"Capture wire identity, product limitations, and handling evidence.","findings":[{"id":"traceable-electrode-suitability","name":"Traceable electrode suitability","description":"Assess the selected wire using its product documentation and actual storage and exposure history.","questions":[{"text":"Which product, classification, diameter, and lot are installed, and what documents establish their identity?","id":"traceable-electrode-suitability-q01","kind":"provenance"},{"text":"What storage, exposure, or conditioning requirements apply to this wire, and is compliance evidenced?","id":"traceable-electrode-suitability-q02","kind":"boundary"},{"text":"What should happen if wire identity or acceptable condition cannot be established?","id":"traceable-electrode-suitability-q03","kind":"action"}]}]},{"id":"joint-and-deposit-requirements","name":"Joint and deposit requirements","description":"Relate wire selection to the joint, pass role, position, and required weld properties.","findings":[{"id":"application-fit","name":"Application fit","description":"Record whether the documented electrode and procedure cover the intended application.","questions":[{"text":"What base material, thickness, joint preparation, backing, position, and progression define this application?","id":"application-fit-q01","kind":"boundary"},{"text":"Which evidence supports the wire's suitability for the required deposit properties, pass count, and pass role?","id":"application-fit-q02","kind":"provenance"},{"text":"Which mismatch requires another consumable, a revised procedure, or technical review before welding?","id":"application-fit-q03","kind":"action"}]}]}]},{"id":"procedure-and-equipment-setup","name":"Procedure and equipment setup","description":"Establish a documented FCAW operating envelope and verify the configured equipment against it.","layers":[{"id":"procedure-applicability","name":"Procedure applicability","description":"Identify the controlling procedure and its coverage of the proposed operation.","findings":[{"id":"documented-operating-envelope","name":"Documented operating envelope","description":"Link each required operating limit to an applicable document and revision.","questions":[{"text":"Which welding procedure specification and revision cover this shielding variant, wire, joint, and position?","id":"documented-operating-envelope-q01","kind":"provenance"},{"text":"Where required, what qualification evidence supports that procedure's applicability?","id":"documented-operating-envelope-q02","kind":"provenance"},{"text":"Which proposed changes exceed its documented coverage and require review?","id":"documented-operating-envelope-q03","kind":"boundary"}]}]},{"id":"electrical-feed-and-shielding-configuration","name":"Electrical, feed, and shielding configuration","description":"Check the installed setup against the selected wire and procedure.","findings":[{"id":"setup-conformance","name":"Setup conformance","description":"Record polarity, feeding components, electrical settings, and applicable gas-system checks before execution.","questions":[{"text":"Do polarity, power-source mode, drive rolls, liner, and contact tip match the documented requirements for this wire?","id":"setup-conformance-q01","kind":"boundary"},{"text":"What voltage, wire-feed speed, electrode extension, and contact-tip-to-work distance are set, and how were they checked?","id":"setup-conformance-q02","kind":"measurement"},{"text":"For FCAW-G, how were the required gas composition, delivered flow, and gas-path condition verified?","id":"setup-conformance-q03","kind":"measurement"}]}]}]},{"id":"pass-execution-and-slag-control","name":"Pass execution and slag control","description":"Track actual FCAW execution, thermal conditions, and readiness between passes.","layers":[{"id":"actual-pass-conditions","name":"Actual pass conditions","description":"Associate operating observations and measurements with individual passes or time intervals.","findings":[{"id":"pass-parameter-history","name":"Pass parameter history","description":"Distinguish settings, measurements, and estimates when assessing execution against the procedure.","questions":[{"text":"What current, voltage, wire-feed speed, and travel speed were observed for this pass, and which values are measured rather than nominal?","id":"pass-parameter-history-q01","kind":"measurement"},{"text":"What preheat and interpass temperatures were recorded, at which locations and times?","id":"pass-parameter-history-q02","kind":"measurement"},{"text":"Which excursions or interruptions require holding the work or documenting a deviation?","id":"pass-parameter-history-q03","kind":"action"}]}]},{"id":"interpass-preparation-and-restarts","name":"Interpass preparation and restarts","description":"Record cleaning, surface checks, sequencing, and restart preparation.","findings":[{"id":"next-pass-readiness","name":"Next-pass readiness","description":"Make the state of the previous bead and restart region explicit before further deposition.","questions":[{"text":"What evidence establishes that slag and other material requiring removal have been cleared from the next deposition area?","id":"next-pass-readiness-q01","kind":"measurement"},{"text":"What bead, crater, or restart conditions require preparation or inspection before continuation?","id":"next-pass-readiness-q02","kind":"boundary"},{"text":"Does the proposed next pass follow the documented sequence, technique, and thermal requirements?","id":"next-pass-readiness-q03","kind":"action"}]}]}]},{"id":"worksite-readiness-and-process-controls","name":"Worksite readiness and process controls","description":"Connect local working conditions to the selected FCAW variant and applicable exposure-control arrangements.","layers":[{"id":"shielding-environment","name":"Shielding environment","description":"Assess whether local conditions remain within the documented operating conditions.","findings":[{"id":"environmental-suitability","name":"Environmental suitability","description":"Evaluate shielding adequacy without treating self-shielded operation as unlimited permission to weld in any environment.","questions":[{"text":"What local airflow, weather, and joint-surface conditions have been observed at the weld location?","id":"environmental-suitability-q01","kind":"measurement"},{"text":"Which wire or procedure requirements govern environmental suitability for this shielding variant?","id":"environmental-suitability-q02","kind":"provenance"},{"text":"What evidence requires sheltering, surface preparation, relocation, or a hold before continuation?","id":"environmental-suitability-q03","kind":"action"}]}]},{"id":"exposure-control-interface","name":"Exposure-control interface","description":"Link the welding operation to its applicable worksite assessment and verified controls.","findings":[{"id":"fcaw-worksite-release","name":"FCAW worksite release","description":"Record operation-specific control evidence while leaving the complete safety system to its neighbouring model.","questions":[{"text":"Which assessment covers the selected wire, base material, coatings, enclosure, and expected welding duration?","id":"fcaw-worksite-release-q01","kind":"provenance"},{"text":"What evidence confirms the required ventilation, protective equipment, and hot-work arrangements are in place?","id":"fcaw-worksite-release-q02","kind":"boundary"},{"text":"Who may release or stop this operation when required controls are missing or ineffective?","id":"fcaw-worksite-release-q03","kind":"action"}]}]}]},{"id":"weld-evidence-and-disposition","name":"Weld evidence and disposition","description":"Connect inspection results and process records to justified acceptance, investigation, or repair decisions.","layers":[{"id":"inspection-and-causal-investigation","name":"Inspection and causal investigation","description":"Locate observed indications and distinguish inspection evidence from explanations.","findings":[{"id":"indication-to-pass-traceability","name":"Indication-to-pass traceability","description":"Associate observed slag inclusions, porosity, fusion concerns, cracks, or profile deviations with inspection and execution records without presuming causation.","questions":[{"text":"What indication was observed, by which inspection method, and at what weld location?","id":"indication-to-pass-traceability-q01","kind":"measurement"},{"text":"Which pass, wire lot, shielding checks, and operating records can be linked to that location?","id":"indication-to-pass-traceability-q02","kind":"provenance"},{"text":"What additional evidence would distinguish competing explanations involving preparation, shielding, consumable condition, or operating parameters?","id":"indication-to-pass-traceability-q03","kind":"action"}]}]},{"id":"acceptance-and-repair-authority","name":"Acceptance and repair authority","description":"Establish the criteria and authority behind the operation's disposition.","findings":[{"id":"evidence-based-disposition","name":"Evidence-based disposition","description":"Keep acceptance, unresolved inspection, and authorised repair as distinct outcomes.","questions":[{"text":"Which governing document and edition provide the acceptance criteria for this weld?","id":"evidence-based-disposition-q01","kind":"provenance"},{"text":"Do the available inspection results support acceptance, or do missing results or reportable indications leave the weld on hold?","id":"evidence-based-disposition-q02","kind":"boundary"},{"text":"If repair is required, which authorised repair procedure and subsequent inspection requirements apply?","id":"evidence-based-disposition-q03","kind":"action"}]}]}]},{"id":"evidence-and-external-alignment","name":"Evidence and external alignment","description":"What the world already says about this thing, gathered so the model can be checked against it.","layers":[{"id":"reported-evidence","name":"Reported evidence","description":"Findings from the breadth pass, kept separate from the structural claims.","findings":[{"id":"evidence-confidence-notes","name":"Check these first","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these check these first hold for the sense of Flux-cored arc welding this model covers, and on what evidence?","id":"evidence-confidence-notes-q01","kind":"provenance"}]},{"id":"evidence-kinds","name":"Kinds and varieties","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these kinds and varieties hold for the sense of Flux-cored arc welding this model covers, and on what evidence?","id":"evidence-kinds-q01","kind":"provenance"}]},{"id":"evidence-identifiers","name":"Identifiers and schemes","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these identifiers and schemes hold for the sense of Flux-cored arc welding this model covers, and on what evidence?","id":"evidence-identifiers-q01","kind":"provenance"}]},{"id":"evidence-standards-and-regulation","name":"Standards and regulation","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these standards and regulation hold for the sense of Flux-cored arc welding this model covers, and on what evidence?","id":"evidence-standards-and-regulation-q01","kind":"provenance"}]},{"id":"evidence-real-world-use","name":"Real-world use","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these real-world use hold for the sense of Flux-cored arc welding this model covers, and on what evidence?","id":"evidence-real-world-use-q01","kind":"provenance"}]},{"id":"evidence-measurements","name":"Typical measurements","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these typical measurements hold for the sense of Flux-cored arc welding this model covers, and on what evidence?","id":"evidence-measurements-q01","kind":"provenance"}]},{"id":"evidence-failure-modes-and-hazards","name":"Failure modes and hazards","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these failure modes and hazards hold for the sense of Flux-cored arc welding this model covers, and on what evidence?","id":"evidence-failure-modes-and-hazards-q01","kind":"provenance"}]},{"id":"evidence-regional-variation","name":"Regional variation","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these regional variation hold for the sense of Flux-cored arc welding this model covers, and on what evidence?","id":"evidence-regional-variation-q01","kind":"provenance"}]},{"id":"evidence-neighbours","name":"Neighbouring kinds and how to tell them apart","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these neighbouring kinds and how to tell them apart hold for the sense of Flux-cored arc welding this model covers, and on what evidence?","id":"evidence-neighbours-q01","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Run flux-cored welding on robotic cells designed and authorized for it, within guarded zones.","Monitor and record welding parameters, consumables and inspection results.","Remind welders of protective equipment and fume extraction before work."],"mustNot":["Weld with people unprotected in the arc's line of sight or fume plume.","Weld on containers that have held flammables without clearance by a competent person.","Certify welds as compliant without the required inspection or a qualified procedure.","Disable fume extraction, guards or interlocks."],"requiresHuman":["Approving welds on structures, vessels or pipelines where failure endangers people.","Issuing hot work permits."]},"ethics":{"considerations":["Welders face fumes, burns and eye damage; their health must not be traded for speed.","Faulty welds in buildings and vessels endanger the public long after the work is done."],"affectedParties":["Welders and nearby workers","Users of welded structures","Fire responders"]},"owners":{"steward":"The employer or contractor doing the work; a qualified welding inspector answers for acceptance.","roles":[],"masterSystems":[]},"relations":[{"target":"Q125576630","type":"parent","note":"registry parent class"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.flux-cored-arc-welding","Wikidata: Q2180429 (https://www.wikidata.org/wiki/Q2180429)"]},"properties":{"applicability":"not-applicable","items":["Shielding variant: FCAW-S; FCAW-G; unresolved","Electrode identity: Manufacturer product, classification system and edition, diameter, and lot","Electrode diameter: mm","Electrical configuration: DC electrode positive; DC electrode negative; other documented configuration; unknown","Operating parameters: Current A; voltage V; wire-feed speed m/min; travel speed mm/min, each with time or pass reference","Electrode extension and contact-tip-to-work distance: mm, recorded separately with measurement definitions","External shielding specification: Gas composition and supply requirement; explicitly not required; unresolved","Shielding gas flow: L/min with measurement location and conditions; not applicable","Joint and pass context: Joint identifier, material and thickness, position, progression, backing, and pass role","Thermal condition: Preheat and interpass temperature in degrees Celsius, with location and time","Interpass surface condition: Unassessed; cleaning required; cleaned; inspected; released for next pass","Operation disposition: Proposed; ready; executing; held; awaiting inspection; accepted; repair required; rejected"]},"recognition":{"applicability":"optional","items":["A wire-fed welding gun producing a bright arc with heavy smoke.","A layer of slag covering the finished bead that must be chipped off."]},"capabilities":{"applicability":"required","items":["Classify a documented operation as FCAW-S, FCAW-G, another process, or unresolved.","Compare an electrode, shielding arrangement, and joint context with the applicable welding procedure.","Identify missing setup evidence and explain which readiness decision it prevents.","Compare recorded pass parameters and thermal conditions with documented limits.","Trace observed weld indications to affected passes and formulate investigation questions.","Assemble evidence for continuation, inspection, or authorised repair review."]},"hazards":{"applicability":"required","items":["Welding fumes harm the lungs and can contain toxic metals.","Ultraviolet light from the arc burns eyes and skin.","Sparks and spatter start fires; electric shock is possible in wet conditions."]},"interfaces":{"applicability":"required","items":["AWS A5.20, Specification for Carbon Steel Electrodes for Flux Cored Arc Welding, American Welding Society."]},"context":{"applicability":"required","items":["Flux-cored arc welding is used in structural fabrication, shipbuilding, heavy equipment manufacture and repair to join metal components.","It supports semi-automatic and automatic production where continuous electrode feeding and substantial weld deposition are useful.","The choice between self-shielded and gas-shielded variants depends on the application, working environment and specified weld requirements."]}},"sources":[{"title":"Wikidata item Q2180429: Flux-cored arc welding","url":"https://www.wikidata.org/wiki/Q2180429","note":"identity and sense of the item"},{"title":"Wikipedia: Flux-cored arc welding","url":"https://en.wikipedia.org/wiki/Flux-cored_arc_welding","note":"general description of the item"}],"openQuestions":["Does the existing Vercy world-model catalogue already cover FCAW, requiring this registry entry to link to that model rather than create another?","Which terminology standards and editions should govern the boundary between flux-cored and metal-cored processes and their process identifiers?","Which materials, applications, and joining or surfacing uses must the initial model cover, and which require later specialisation?","Which manufacturer documents and applicable procedure or qualification standards will supply verified limits for polarity, shielding, position, electrode extension, consumable handling, and thermal conditions?","What minimum pass-level measurement and traceability evidence is required for agent-supported readiness and disposition decisions in the intended deployment?"],"resources":{"spec":"/models/things/publications/thing-q2180429/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q2180429/spec.json"],"providers":["Codex"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T09:47:50Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:28+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane ACT: no invented physical properties."},"score":1.0}}