Description

The demands of the EV industry on the manufacturing processes are increasing rapidly in terms of productivity, strength, and electrical performance. Common laser tools are already reaching their performance limits in demanding fields of application, such as joining of copper and aluminum, or high-speed welding of thin metal foils. Innovative laser beam sources with new degrees of freedom in laser material processing are therefore needed to meet the increasing requirements. In this article, we examine selected laser applications in the EV industry, particularly in the areas of battery, e-motor and fuel cell production. In the case of electrical contacts, in addition to the requirements of high strength and low electrical resistance, there is also the difficulty that the welding depth may only be within a very narrow tolerance band, otherwise the parts would be destroyed if the component was shot through. In addition to the precise welding depth, the heat input is also a major factor in determining whether the component remains intact during the joining process. In this contribution results of fundamental process investigations when using two superimposed laser beams of high brilliance of the latest generation are presented. It is shown that both productivity and process stability can benefit from this new type of laser tool.

Contributing Authors

  • Oliver Bocksrocker
    TRUMPF Laser- und Systemtechnik GmbH
  • Pierson Cheng
    TRUMPF Laser Technology Center
  • Mark Richmond
    TRUMPF Laser UK Ltd
  • Kai Fiechtner
    TRUMPF Laser- und Systemtechnik GmbH
  • Alessia Riccio
    TRUMPF Laser- und Systemtechnik GmbH
  • Nicolai Speker
    TRUMPF Laser- und Systemtechnik GmbH
  • Tim Hesse
    TRUMPF Laser- und Systemtechnik GmbH
Oliver Bocksrocker
TRUMPF Laser- und Systemtechnik GmbH
Track: Laser in Battery Manufacturing
Session: Battery Processing and Lasers
Day of Week: Wednesday
Date/Time:
Location: Salon 8 & 9

Keywords

  • Aluminum
  • Battery
  • Copper
  • E-Mobility
  • Welding