Integral Bent Housing for an Axial Turbomachine Compressor

A method for producing a housing of an axial turbomachine, the housing having a metal sheet and at least one annular row of stator blades, the method comprising:

• (a) providing a planar metal sheet;
• (b) welding stator blades to one of the planar faces of the metal sheet, the blades being arranged so as to form at least one row of blades;
• and
• (c) bending the metal sheet about a bending axis perpendicular to the row of blades, so as to form a housing with at least one angular tube portion as a result of the metal sheet, and with at least one angular portion of an annular row of blades;
• wherein the step (c) bending is carried out with at least one roller with a rotation axis, said rotation axis being perpendicular to each blade row.

A method for producing a housing for a low pressure compressor of an axial turbomachine, the housing having a metal sheet and several annular rows of stator blades, the method comprising the following steps:

• (a) providing a planar metal sheet;
• (b) welding stator blades to one of the planar faces of the metal sheet, the blades being arranged so as to form several parallel rows of blades, wherein the blade rows are axially spaced apart from each other of at least the axial length of each stator blade;
• and
• (c) bending the metal sheet about a bending axis perpendicular to each parallel rows of blades, so as to form a housing with at least one angular tube portion as a result of the metal sheet, and with several parallel angular portions of annular rows of blades.