TIG Welding for Stainless Steel, Titanium, and Inconel^®

TIG welding is the most precise arc welding process. We use it when the quality, dimensional accuracy, and appearance of the weld are critical: on thin-walled tubes, complex piping systems, and challenging materials. From prototypes to series production, based on your drawings and approved welding procedures.

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At a Glance

• Stainless steel, titanium, Inconel^®, aluminum, steel
• Tube and Sheet Metal Assemblies
• Forming and drag gas protection for titanium
• Certified as a specialized welding company in accordance with DIN EN ISO 3834-2 and Aviation Welder Certification Exam --> About the Certificates

Your Benefits

• Clean visible seams: no spatter, uniform, minimal rework
• Minimal warpage: controlled, low heat input
• Titanium expertise: inert gas protection at the root and top to prevent discoloration
• Everything from a single source: bending, forming, welding, and testing

How TIG Welding Works

In TIG (Tungsten Inert Gas) welding, the arc burns between a non-consumable tungsten electrode and the workpiece. Argon or an argon-helium mixture shields the electrode and the molten pool. The welder feeds the filler metal separately, or welds thin components without any filler material at all.

Because the arc and the filler material are separate, the heat can be controlled very precisely. By using pulsed current, we introduce even less heat when working with thin walls. The result is low-porosity, spatter-free welds with fine scaling that can often be left as exposed welds without the need for grinding.

Titanium andInconel^®: Inert gas is everything

At high temperatures, titanium absorbs oxygen and nitrogen, causing it to become brittle. That is why, when welding titanium, we do more than just protect the molten pool. The root of the weld is purged with shielding gas, and a trailing gas nozzle keeps the cooling weld under argon. The color of the weld indicates whether the protection was sufficient: silver to straw-yellow is acceptable; blue or gray is not.

Inconel^® and other nickel-based alloys are heat-resistant and are used primarily in exhaust systems. They require clean weld preparation, controlled interpass temperatures, and a consistent welding rhythm. Our welders have mastered these techniques through their daily work on exhaust systems for the automotive and motorsports industries.

Preparation and Procedure

Every weld begins before the arc is struck. We clean and degrease the joint areas, align the components in fixtures, and tack them together. Welding is performed by certified welders in accordance with an approved welding procedure specification (WPS). After welding, we conduct a visual inspection, dimensional inspection, and, for components carrying media, a leak test.

We perform TIG welding in larger quantities using TIG welding robots.

Specifications

Process: 141 according to DIN EN ISO 4063
Method: manual, tube and sheet metal
Shielding gas: argon, argon-helium, formier gas
Current type: direct current for steel, stainless steel, titanium, and Inconel®; alternating current for aluminum
Batch size: 1 piece to series production
Materials: stainless steel, titanium, Inconel®, aluminum, and steel

Typical Applications

• Exhaust systems and mufflers made of stainless steel and titanium
• Fluid-carrying lines and tube assemblies
• Aviation components made of titanium and Inconel®
• Housings and sheet metal assemblies with visible seams
• Prototypes and sample parts
• Industries: Aerospace, Automotive & Motorsports, Watercraft, Energy & Environmental Technology, Mechanical & Plant Engineering

TIG or manual laser welding?

For titanium, Inconel^®, and medium wall thicknesses, TIG welding remains the first choice. For thin stainless steel and long weld lengths, handheld laser welding is often more cost-effective.