Patent ID: 7024769

Claim:
An internal high-pressure tool for manufacturing an assembly linkage from a hollow profile by insertion of the hollow profile into an engraving face of the tool, comprising a member having a guiding bore, and an indenting die controllably arranged to move within the bore such that, with the hollow profile inserted in the tool, the indenting die is drivable into the engraving face for indenting the hollow profile at a discrete location on the hollow profile only where the assembly linkage is to be formed without deforming a remaining portion of the hollow profile outside the discrete location at pressure conditions below a remodeling pressure to create a coarse contour of the assembly linkage prior to introducing remodeling pressure into the hollow profile, during remodeling of the hollow profile, the indenting die is arranged to remain backstopped at the discrete location against the remodeling pressure in an indenting position while additional hollow profile material is shifted to the bore while producing the remodeling pressure such that walls of the hollow profile surrounding the indenting die are pressed against the outside contour of the indenting die to form the assembly linkage, and thereafter the indenting die is retractable from the engraving face.