Technology file

Friction Acoustic Bonder
Friction Acoustic Bonder

Friction Acoustic Bonding is a solid phase joining process, which uses a non-consumable rotating tool to generate heat and deformation in the materials to be bonded.

The bonding process is based on frictional heat but also includes pressure pulsing from a slightly eccentric rotating 'disc' type tool.

The modest heat generated by the process makes it attractive for joining applications where heat sensitive components are present.

Expertise

The Microtechnology Section has expertise in Friction acoustic bonding and has demonstrated the following applications for this process:

  • seam welding of aluminium & copper (from 0.1mm thick up to 3mm thick) for heat sink manufacture
  • Bonding Aluminium to Alumina
  • joining copper wires to connectors, terminals and PCB metallisation
  • joining copper wires without prior insulation removal

Resource

  • Bespoke FAB equipment for feasibility studies & process development
  • background knowledge of FAB process & its capabilities
  • metallurgical support services
  • wide range of joint testing & analysis facilities

If you require further information or if you want to discuss your application, please email to micro@twi.co.uk.

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