F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
F01D5/12—Blades
F01D5/14—Form or construction
F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
B—PERFORMING OPERATIONS; TRANSPORTING
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
B21C23/00—Extruding metal; Impact extrusion
B21C23/02—Making uncoated products
B21C23/04—Making uncoated products by direct extrusion
B21C23/14—Making other products
B21C23/16—Making turbo blades or propellers
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Architecture
(AREA)
General Engineering & Computer Science
(AREA)
Structures Of Non-Positive Displacement Pumps
(AREA)
Procede de mise en forme de plusieurs variantes d'une piece en tole, outil de mise en forme ainsi que dispositif pour la mise en oeuvre de ce procede
Procede pour l'emmanchement en croix d'une piece cylindrique dans une piece tubulaire, outillage propre a sa mise en oeuvre, et ensemble de deux pieces correspondant
Procédé de sectionnement ou de décalottage d'une partie tubulaire fermée notamment d'une pièce hydroformée et moyens destinés à le mettre en oeuvre