A weld seam that doesn’t look like a weld seam!

Welding – loud and dirty, right? Not friction stir welding! Heat makes the material deformable, and a rotating tool stirs the material at the seam. In this way, FSW technology creates a homogeneous structure with outstanding properties. The whole process is emission-free!

When a weld has to be really tight, FSW is the method of choice. It joins workpieces in a reproducible pressure- and media-tight manner. FSW can be optimally integrated into industrial series production. The result is top quality that is easy to reproduce. Friction stir welding technology – an investment that will pay off!

Functionality of friction stir welding

How does friction stir welding work?

This is how FSW technology works, step by step:

1. Rotating welding tool
A wear-resistant tool is set in a spindle and rotates.

2. Immersion
The tool dips directly into the material to be joined.

3. Feed
Frictional heat is generated by rotation, so the metal becomes plastically deformable. Along the seam, it is stirred by the tool and finally compacted without ever reaching its melting point.

4. Removal
The tool is lifted off the seam. The result is a strong, media- and pressure-tight joint between workpieces.

Advantages

  • Durable, media- and pressure-tight weld seams
  • High, reproducible seam quality
  • Low-warpage joints
  • No pores or hot cracks
  • No emissions and no auxiliary materials such as shielding gas, powder, or welding wire
Friction stir welding for e-mobility

Friction stir welding for e-mobility

Crash-test-safe battery trays and heat exchangers

Technological change has arrived in the automotive industry. Mounting pressure to roll out low-emission vehicles is coming from the political arena.

Concepts such as driving on green energy are having a direct impact on work with aluminum. As a result, demand for the welding of cast components for the automotive industry is skyrocketing. One example is the manufacture of battery trays and heat exchangers. This is where green energy and green technology meet: friction stir welding is emission-free.

 

“Providing a comprehensive response to our customers’ questions and concerns has always been our hallmark. The FSW experts at Grenzebach support you with holistic solutions. We also know the limits of the technology – we are the right sounding board if you want to create something new on the basis of experience. From the very first idea, we can advise you on product design and process control, and we offer high-performance equipment to do so.”

 

Statement by Christian Herfert FSW partnership
Christian Herfert Head of FSW

For North America

Your contact person: John Fluker

Do you have questions about friction stir welding? Would you like to know whether a new idea can be implemented with FSW? Or do you need support in selecting a system? Please contact us. We'll be happy to advise you!

For all other regions

Your contact person: Sahin Sünger

Do you have questions about friction stir welding? Would you like to know whether a new idea can be implemented with FSW? Or do you need support in selecting a system? Please contact us. We'll be happy to advise you!

Sahin Sünger Grenzebach