Bumper welding automotive lightweight construction

New plastic parts and torsional welding SONIQTWIST® from Telsonic accelerate lightweight construction in the automotive industry Telsonic's gentle, torsional welding process has been successful worldwide for decades.


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Check-out the application possibilities:




Torsional welding supports trends in the automotive exterior and interior sector

  • Thin wall technology for weight reduction (wall thickness 2.5mm and thinner are possible) 
  • New designs and functionalities 
  • More sensors due to autonomous driving
  • Applications: PDC, SLA, air keeping module, side skirts, windscreen cleaning system and much more 

News articles on 'Lightweight Construction'

Advantages Torsional thin wall welding

Thin wall welding with Telsonic torsional welding process compared to alternative technologies, such as

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, gluing or laser welding:

  • Significant savings in overall costs due to less use of materials, no expensive additives, less wear on tools, low energy costs
  • Significant weight saving because components can be designed with a thinner wall
  • No marking on already painted parts (Class A surfaces) 
  • Fulfillment of highest OEM quality requirements
  • High tensile strength (400N)
  • Short cycle time (welding time around 300ms)
  • High flexibility in component design
  • High process stability
  • Low integration effort into different automation concepts



Support by Telsonic

For component design according to our patented design guidelines 

  • Compact or large assemblies are possible (for example PDC or SLA) 
  • FEM simulations  
  • Quick experiments with portable hand welding unit are possible 



Proven technology

  • Torsional technology has been used in various applications for more than 20 years. 
  • Magna won the SPE Innovation Award in 2018 for use in the Skoda Octavia   
  • Worldwide projects with numerous OEM and Tier 1 suppliers



Support for system manufacturers

  • Special machines or robot systems 
  • Installation guidelines and apporved process for quality assurance 
  • Defined startup process with licensing 
  • Standard components and Telso®Assist functionality secure fast and competent support, worldwide. 

Let us convince you of the versatile application possibilities and advantages and contact us for a trial welding! 


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We are happy to answer your questions.

TELSONIC Ultrasonics Inc.

TELSONIC Solutions Inc.

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