Cavity-Loc® Clinching Joint Cross Section
The Cavity-Loc® joint is also the solution par excellence when a flat surface or only a low button height is required.
Materials with low ductility, i.e. materials that are difficult to form, as well as materials with very different thicknesses, can be joined using the Cavity-Loc® clinching tool. This includes spring steels, as well as brittle aluminium and copper alloys.
The BTM Cavity-Loc clinching tool can be used to join soft with very hard or non-ductile sheet metal. The hard sheet layer is pre-punched and centred to the clinching punch via a spring-loaded centring punch. The clinching punch then pushes the soft cover-side sheet through the punching and locks it into or under the second sheet. a flat joint or a button that only protrudes flat is the result.