Pipe with a connection end for a pipe connection, method for its production and pipe connection with such a pipe

摘要

The invention relates to a method for producing a connection end (2) of a pipeline (1) designed for a pipe connection (100), wherein a wall region (4a) of a pipe end piece (4) is formed by the interaction of at least one first tool (W1) acting at least in tension. and a second, at least deforming acting tool (W2) is formed, wherein a circumferentially according to the outer diameter (DA) of the pipe (10) enclosing ring (5) is inserted, before the deformation of the wall portion (4a) by the first tool (W1 ) is pressed onto the initially present outer diameter (DA0) of the pipe end piece (4) and remains captive on the pipe end piece (4) after the forming, the ring (5) forming a part of the first tool (W1) during the forming by forming the pipe (10) against a radial, circumferential and axial relative movement relative to the first tool (W1) fixed while de n entire clamping range (BS) of the first tool (W1) forms. In particular, in order to ensure that the geometry of the connection end (2) can be adapted optimally to the mating contour of a connection part (3) to be connected, it is proposed that the ring (5) be designed as a sleeve body, at least in one of the end sides (S) of the connecting end (2) facing away from the inner circumference a plurality of radially inwardly directed teeth (6) which form a positive connection during the forming between the pipe end piece (4) and the ring (5), wherein on the outer circumference of the pipe end ( 4) a negative profile of the teeth (6) is generated.