Abstract:
Abstract A preform of a foamable laminate sheet including a core between two metal skin plates, said core comprising a foaming agent and a foamable metal. The foamable metal includes at least one foamable metal sheet. The foaming agent is applied on at least one side of at least one foamable metal sheet.
Abstract:
A method and device for manufacturing one or more cushions filled with air from a piece of material having a tube form, wherein a piston member is placed into the tube form, a hole is pierced in the tube form, the piston member is moved whereby the tube form is carried along therewith and one or more weld seams are arranged in the tube form.