| Workpiece range | Web and flange thickness, beam length, material grades, and the minimum and maximum T-beam section the line is intended to process. | Run representative pieces at the agreed range limits. Check fit-up, clamping, torch access, feeding, and discharge without unplanned manual rework. | All specified test pieces pass through the line and can be welded using the agreed procedure and approved production setup. | Test-piece dimensions, material certificates, setup sheet |
| Weld size and profile | Fillet weld leg size or throat requirement, weld continuity, start/stop areas, and the drawing-defined weld arrangement. | Measure welds at agreed locations using suitable gauges; visually inspect the full weld length. Compare results with drawings and the qualified welding procedure. | Weld dimensions meet the project drawing and applicable acceptance level. Define any permitted variation and sampling locations in the contract. | Weld map, measurement sheet, procedure reference |
| Visual weld quality | Cracks, visible porosity, undercut, overlap, incomplete fill, arc strikes, and other relevant surface imperfections. | Visual testing by qualified personnel under suitable lighting, before any agreed repair. Record locations and dispositions of findings. | Acceptance is to the specified quality level and applicable standard, such as ISO 5817 where adopted by the project; do not assume a level without agreement. | Visual inspection report, defect and repair log |
| Internal weld integrity | Whether volumetric or other non-destructive testing is required for the joint type, risk, and project code. | Use the inspection method and extent required by the project. Where ultrasonic testing is applicable, agree the technique, personnel qualification, and evaluation criteria in advance. | No acceptance limit is universal: specify the governing code, method, coverage, and relevant acceptance criteria before the test. ISO 17640 addresses ultrasonic testing of welds where applicable. | NDT procedure, personnel qualifications, inspection reports |
| Beam geometry | Web-to-flange alignment, straightness, angular distortion, twist, and dimensions after welding and cooling. | Measure completed beams at defined positions using calibrated measuring tools and the project’s datum scheme. Include the longest agreed test length. | All dimensions remain within the drawing tolerances or separately agreed limits. Example only: a contract may set a maximum web offset of 2 mm; confirm suitability for the actual section and application. | Measurement locations, calibrated-tool IDs, results |
| Production rate | Finished, accepted beams per shift or hour, including the agreed loading, welding, handling, and inspection scope. | Run a timed production trial using representative materials, beam sizes, weld details, and normal staffing. State whether loading and changeover time are included. | Meet the contract rate over the agreed trial period while maintaining the required weld and dimensional quality; define the product mix and counting rules. | Trial duration, accepted output, stoppage log |
| Repeatability | Consistency of weld dimensions, beam geometry, travel speed, and other process settings across repeated parts. | Produce a pre-agreed batch without changing the approved setup except for documented routine adjustments. Measure the same features on each sample. | Each sample meets drawing and weld acceptance requirements. If statistical limits are required, specify the sampling plan and calculation method in advance. | Sample IDs, measurements, process-setting logs |
| Setup and changeover | Time and effort needed to switch between agreed beam sizes, welding procedures, and production recipes. | Demonstrate a changeover between two representative configurations; observe setup steps, required tools, and recipe selection. | Complete the agreed changeover within the contracted time using documented instructions and without bypassing safety or quality controls. | Changeover time, checklist, operator feedback |
| Process control and traceability | Availability of welding parameters, alarms, recipe control, part identification, and retrievable production records. | Run a test job, change a permitted setting, trigger an agreed alarm, and retrieve records for selected parts. | Required data can be linked to the part or batch and retained for the contractually agreed period; access and export formats are defined. | Sample data export, alarm log, traceability demonstration |
| Reliability during trial | Unplanned stops, recurring faults, restart behavior, and availability of the complete line during a sustained run. | Conduct a continuous trial of an agreed duration and log planned stops, unplanned stops, fault causes, and recovery time. | Meet any contractually defined availability or downtime target during the specified trial. State the formula and which stops are excluded. | Time-stamped downtime and recovery log |
| Safety and guarding | Risk controls for moving equipment, welding arc and fumes, hot workpieces, electrical systems, and access to hazardous areas. | Review the risk assessment, guarding, interlocks, emergency stops, warning devices, and safe maintenance access; test safety functions using an agreed procedure. | Safety functions operate as designed and the equipment meets applicable local regulations and agreed safety requirements before production use. | Risk assessment, safety-function test record |
| Training and handover | Operator and maintenance instruction, manuals, spare-parts information, and documented recovery procedures. | Have nominated personnel complete a practical operation and routine-maintenance demonstration using the supplied documentation. | Named personnel can perform agreed routine tasks safely; manuals, maintenance schedules, and required handover documents are delivered. | Training attendance, document checklist, open-item list |