Method for producing a tubular body with reduced residual stress using 3-D pressure and tubular body with reduced residual stress

摘要

The invention relates to a method for producing a reduced-stress tubular body using 3-D pressure, the tubular body having an outer wall with a stiffening structure, the stiffening structure extending along at least part of the outer wall, the method (100) Comprising: a) adjusting (101) a printing plane for a 3-D printing by means of a 3-D printer (30); b) printing (102) a tubular body layer (20) in the printing plane (38) by means of the 3-D printer, the tubular body layer having an outer wall layer (16) and a stiffening structure layer (18, 19), wherein the stiffening structure layer is in the printing plane along an edge (17) of the outer wall layer, and wherein the stiffening structure layer has at least two portions spaced from each other; c) repeating (103) the steps a) and b) to produce an outer wall (12) with a stiffening structure (14) for a tubular body (10) with reduced residual stress. The invention thus provides a method which avoids damage to the tubular bodies during their production.