Lamination Bonding

At times, welding your sheets or punchings may not be the best route depending on the purpose of your laminations.

Bonding may be used to reduce interlaminar loss and corrosion. For our customers who are looking for cores with great thermal conductivity, no hum noise, and are resistant to temperature changes, we offer bonding as an alternative to welding.

Process for Lamination Bonding

  1. Laminations are either laser cut by Polaris or our customers provide existing laminations.
  2. Laminations are sent through our coating line to receive the bonding agent.
  3. The bonding agent is then oven cured.
  4. Fixtures are then custom-built for your application.
  5. The laminations are then stacked in a straight or skewed manner based on the customer's drawing call out.
  6. The fixtured stacks are then oven cured for a second time.
  7. Once the final cure is complete, your laminations will be "fused" together.

Benefits of Bonding

Other Benefits of our Bonding Methods include:

  • Homogenic core stack
  • No interlaminar cross-circuit in the stack
  • No other fixing method for the electrical core is necessary
  • Exact stack dimensions and flexibility in design
  • Good surface insulation resistance.
  • Excellent squeezing resistance
  • Well-defined technical bonding properties