Method and component set for producing a tubular component, in particular a built-up camshaft

摘要

Method for producing a tubular component, in particular a built-up camshaft, by means of hydroforming, wherein a carrier tube (1) and an end piece (2) are fed, wherein an associated end of the carrier tube (1) is inserted into an opening (9) of the end piece (2) is inserted and subsequently expanded by the application of a pressure fluid and is connected to the end piece (2) in an interference fit and wherein the opening (9) before the application of the pressurized fluid has a first portion (10a) with an internal cross-section which is greater than the outer cross section of the associated end of the carrier tube (1), characterized in that starting from the front edge of the opening (9) to the first portion (10a) has a second portion (10b) with a second inner cross section which is smaller than the outer cross section of associated end of the support tube (1), with the formation of a circumferential edge (11) connected in steps, wherein the T gerägerrohr (1) with its corresponding end first in the first section (10 a) is inserted and wherein in a further insertion movement, the edge (11) intersects in the material of the support tube (1) and the material of the tail (2) correspondingly solid or harder than that of the support tube (1).