Lance-N-Loc® Clinching Joint Section Cut Illustration

Lance-N-Loc® Clinching Joint Section Cut Illustration

Lance-N-Loc is a non-twisting clinching system that is ideal for joining harder materials or multiple layers of sheet metal. It is ideally suited when electrical conductivity needs to be established.

The BTM Lance-N-Loc® rectangular joint can, in addition to connecting two layers, also be used to connect several layers of sheet metal. The layers of material are partly cut locally and then interlocked with each other. The rectangular point is also suitable for use with non-metallic partners such as glass fibre fabrics and plastics, while stainless steel sheets/layers such as austenitic stainless steels can also be securely connected with the Lance-N-Loc®.

Because the metal is sheared, a secure electrical connection is established in coated metal sheets. Especially in white goods, the Lance-N-Loc® is therefore also referred to as the “grounding joint”. In addition, the rectangular joint offers a high degree of anti-rotate protection, even where only one clinch joint can be set due to space restrictions.

How does it work?

  1. Clamps: The first step in the process involves the clamping of the material with a punch side stripper.
  2. Draws: Next, the punch draws the material into the die.
  3. Locks: As the material flows into the die, the die blades expand, allowing the metal to flow into a strong interlock below the bottom sheet.