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TIG Welding & Machining

Many parts are welded first and machined after. We TIG weld in-house and CNC machine as one job, so weld preps, welding and final machining are planned together and the part ships with one set of paperwork.

Short answer: Yes, we TIG weld in-house and CNC machine parts as one job. We weld carbon steel reducers, elbows, fittings and fabricated housings, then finish machine them to the drawing after welding.

Weld, then machine

  1. Machine the weld prep. Bevels and fit-up surfaces are cut on our CNC machines, so joints fit consistently.
  2. TIG weld in-house. GTAW gives a clean, controlled weld on pipe and fittings.
  3. Finish machine. Faces, bores, threads and sealing surfaces are machined after welding, to the drawing tolerances.
  4. Inspect and document. Final inspection, material traceability and a certificate of conformance with the shipment.
Welding and machining
ProcessTIG (GTAW) welding, in-house
Typical partsCarbon steel reducers and elbows, pipeline fittings, fabricated housings, repair and build-up
Machining after welding9-axis mill-turn, 5-axis and 3-axis milling, up to 82 in part length
DocumentationHeat-lot traceability, certificate of conformance
Why one shop

One order instead of two vendors

When welding and machining are split between shops, parts travel back and forth, distortion is found late and nobody owns the final dimensions. Doing both in-house as one job means the weld prep, weld sequence and finish stock are planned together, and you get one lead time, one invoice and one set of paperwork.

Related: Large part machining · 9-axis mill-turn · Material traceability

FAQ

Frequently asked questions

Do you weld in-house?

Yes. TIG welding is done in our own shop, so welding and machining are planned and run as one job under one roof.

Do you weld and machine in the same order?

Yes. We TIG weld and machine as one job. Weld preps are machined first, the parts are welded, and critical surfaces and features are finish machined after welding so the final dimensions are not affected by weld distortion.

What do you weld?

Our main welded products are carbon steel reducers, elbows and pipeline fittings, plus fabricated housings, repair and build-up. If your part needs a specific alloy, filler or welding procedure, put it on the RFQ and we will confirm before we quote.

Have a print or a STEP model?

Send it over. We review every RFQ by hand and include a lead time with every quote.

Request a quote Call (832) 451-6811