Certified TIG Welding (GTAW)
  • Certified TIG welders (EN ISO 9606-1)
  • Back-purged, hygienic roots
  • Stainless & aluminium (GTAW AC/DC)

Certified
TIG Welding (GTAW)

TIG is our method of choice for critical joints that demand precision, hygiene, and a clean finish. Our certified TIG welders deliver spatter-free, dimensionally accurate welds—at our workshop or on-site—backed by solid procedures and clear documentation.

Why TIG with De Weerd

  • Precision & appearance
    Fine control of heat input for neat beads and minimal distortion—ideal for visible and thin-gauge work
  • Hygienic roots
    Back purging/inerting to keep the root oxide-free for food & pharma applications
  • Documented quality
    Welders qualified to EN ISO 9606-1; WPS/WPQR prepared and safeguarded by IWT; IWI inspection as required

Materials & capabilities

  • Materials
    Stainless & duplex steels, carbon steels, aluminium (AC/DC), nickel & copper alloys; titanium on request
  • Work
    Thin-gauge sheet and tube, precision frames, machine & equipment parts, sanitary pipework
  • Set-up
    Precise fit-up, backing/purging solutions, heat input and interpass control for repeatable results

Applications

  • Sanitary and process piping with oxide-free roots
  • Machine frames, skids, and sheet-metal fabrications
  • Aluminium enclosures, brackets, housings (AC TIG)
  • Repair and rework of high-value components

Quality & inspection

  • WPS/WPQR per EN ISO 15609/15614 and welder quals per EN ISO 9606-1
  • Acceptance classes per ISO 5817 / ISO 10042
  • VT by IWI; NDT (PT/MT/UT/RT) coordinated where required
  • Pickling & passivation for stainless when specified

How we work

  1. Intake & plan
    Define joint types, materials, acceptance class, and schedule
  2. Procedure
    Prepare/confirm WPS and set welding parameters
  3. Execution
    Controlled TIG welding with back purging and fit-up checks
  4. Verification
    VT/NDT, photo documentation, and release report

Deliverables

  • Complete welding dossier: WPS/WPQR references, welder certificates, inspection/NDT reports
  • Clear, audit-ready documentation that fits within ISO 3834

Industries

Food & beverage, pharmaceuticals, machine & equipment building, and general fabrication—prototypes to series production, in-house or on-site.