TIG & MIG Welding

AWS-Certified Welding for Critical Applications

IMT Precision's welding team holds AWS certifications and specializes in TIG (GTAW) and MIG (GMAW) processes for applications where weld quality directly impacts system performance. Our core strength is Ultra High Vacuum (UHV) welding — the precision weld procedures required for vacuum chambers, sealed assemblies, and leak-tight systems used in semiconductor, space, and research applications.

All UHV weldments are verified using helium leak detection to ensure your vacuum systems meet specification before leaving our facility.

Materials & Applications

We weld aluminum, stainless steel (including 316L for UHV applications), carbon steel, and other alloys. Applications include vacuum chamber fabrication and repair, structural frames and enclosures, and integrated welded assemblies delivered turnkey with full inspection documentation.

Equipment

TIG Welders

• (3x) Miller Dynasty 700 — 500A at 40V, 100% duty cycle (3-phase), TIG/Stick/Pulsed TIG AC/DC
• Miller Syncrowave 350LX — 350A at 34V AC, 40% duty cycle
• Miller Syncrowave 351 — 350A at 34V AC, 40% duty cycle
• Miller Dynasty 200 — 200A, TIG/Stick/Pulsed TIG

MIG & Specialty Welders

• Miller Millermatic 350P — 300A at 32V DC, 60% duty cycle, MIG/Flux-Cored
• Resistance Spot Welder — 20 KVA, 12,500A
• Nelson Stud Welder CD Lite 1 — capacity up to 1/4" (M6) threaded fasteners

Leak Testing

• ASM 182T Helium Leak Detector — detectable leak rate <3×10⁻¹⁰ mbar·L/s, range 1×10⁻¹¹ to 1×10⁻¹ mbar·L/s

Frequently Asked Questions

Are your welders certified?

Yes — our TIG and MIG welders are AWS-certified, with specialized procedures for Ultra High Vacuum chambers and structural weldments. UHV welds are performed using Miller Dynasty 700 TIG machines under controlled procedures developed specifically for leak-tight service.