Friction Stir Welding is a solid-state joining process in which a spinning pin tool traverses across the bond line between two parts, forming a high-quality joint.
It’s a growing technology revolutionizing manufacturing challenges with its unique abilities. From electric vehicles on the ground to ships at sea and rockets in space, FSW delivers high-strength, low-distortion joints that transform assemblies across industries.
With decades of experience, MTI and STIRTEC are partnering to lead the way in friction stir welding (FSW) innovation, offering end-to-end solutions—from part development to high-performance FSW machines. For aluminum alloys, our processes align with the internationally recognized DIN EN ISO (Parts 1–5), ensuring quality and consistency at every step.
As industries continue to push the boundaries of what’s possible, we’re here to help you reach your production goals—whether by building a machine that makes your part, making the part for you, or helping you make it even better.
Friction Stir Welding is a solid-state joining process in which a spinning pin tool traverses across the bond line between two parts, forming a high-quality joint.
It’s a growing technology revolutionizing manufacturing challenges with its unique abilities. From electric vehicles on the ground to ships at sea and rockets in space, FSW delivers high-strength, low-distortion joints that transform assemblies across industries.
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With decades of experience, MTI and STIRTEC are partnering to lead the way in FSW innovation, offering end-to-end solutions from part development to high-performance FSW machines globally. As industries continue to push the boundaries of what is possible, we are here to help you reach your production goals by building a machine that makes your part, making the part for you, or by helping you make the part even better.
Friction stir welding is a pressure welding process. During this innovative welding process, metals are stirred at their seam with a rotating tool and – in comparison to the arc and laser beam welding processes – are not melted. The seam is heated but joined in a still solid state. Therefore, friction stir welding is in particular suitable for joining aluminum alloys, mixed joints and technically pure metals.
FSW is suitable for joining non-ferrous metals and alloys with low melting temperature and metallic mixed joints:
Friction stir welding is particularly effective when processing aluminum: It enables the joining of aluminum alloys, e.g. the , and series, which are considered to be non-weldable or difficult to weld. It is also an ideal process for welding mixed joints, such as aluminum sheets or extruded profiles with die-cast aluminum. FSW is more resistant against material defects such as pores, blowholes and fire cracks than, for example, the fusion welding process.
Friction stir welding is used in various industries:
Grenzebach develops and supplies turnkey FSW plants – from gantry machines with customer-specific work areas to robots that can weld 3D geometries – and thinks ahead for the customers. Therefore, it is also key to consider the right technology of tools in addition to equipment technology. Based on customer requirements, the right friction tool is chosen: a one-piece (conventional) or multi-part tool (DynaSTIR) with a rotating friction pin and fixed shoulder.
For more friction stir welding toolinformation, please contact us. We will provide professional answers.