Friction stir welding has become an accepted joining technology over the past several years. The light-metal processing industry now uses it in a wide variety of areas, ranging from automobile production and aerospace systems to medical and plant technology. What’s more, this innovative joining technology is also being very successfully used in the food industry.
The following pages highlight some of the areas of application from the RIFTEC portfolio.
108 components, 1,296 weld seams with a total combined length of about 1.5 kilometres – here you see hollow profiles made of high-strength aluminium material for aircraft construction (since 2006). RIFTEC thoroughly optimised the needed production processes, characterized the joints, generated the preliminary welding specification, including the test report, and produced a prototype series.
RIFTEC took on responsibility for materials procurement for these high vacuum-tight aluminium-stainless steel multi-material joints (since 2004) in components for X-ray equipment from Siemens Medical Solutions. In addition we weld the aluminium-stainless steel joints and mill the seam surface.
Know-how from RIFTEC also goes into these drying trays for the food industry (2004/2005). Here the RIFTEC team first verified the specified properties and then developed a special clamping technique for use in production. After procurement of the individual components, we produced 6,500 drying trays, performed the aftertreatment of all welded joints and then anodised the products.
RIFTEC has been producing such cooling plates for industrial plate freezing plants (since 2006), and here too we verified the properties. The cooling plates are welded from extruded sections, with each plate weighing about 350 kilograms and measuring 2.5 x 4.5 metres. This results in a weld seam about 50 metres long for each workpiece. The quantity produced per production run is between 36 and 700 pieces.
These tailored blanks (since 2006) for the Audi R8 are quickly on the track. RIFTEC handles the job of materials procurement and welds the blanks.
These perforated plate cylinders for the eco-fan (since 2007), a decentrally used piece of equipment with a counterflow heat exchanger, are the result of a process involving five main work steps – from the materials procurement and forming to friction stir welding and finally mechanical aftertreatment and surface finishing.