Abrégé

A metal sleeve including a metal body which surrounds an inner channel running between a proximal and a distal opening. The inner channel has at least one groove set back into the metal body, running in the longitudinal direction of the inner channel and stepped on both sides by a distal and a proximal front edge. The proximal front edge of the groove is produced by impact extrusion.

Classes IPC  ?

• F16C 3/02 - ArbresManivelles
• F16H 57/021 - Structures de support d'arbres, p. ex. parois de séparation, orifices de logement de paliers, parois de carter ou couvercles avec paliers
• B21K 21/12 - Formage des extrémités d'articles creux
• B21K 21/08 - Formage d'articles creux, à sections différentes dans le sens longitudinal, p. ex. gicleurs, bougies d'allumage
• B21K 21/16 - Remise en forme de corps creux selon une section droite déterminée
• B21C 23/00 - Extrusion des métauxExtrusion par percussion
• B21J 5/12 - Formage de profilés sur des surfaces internes ou externes
• B21K 1/06 - Fabrication d'éléments de machines d'arbres
• B21C 23/18 - Fabrication de produits non revêtus par extrusion par percussion

Abrégé

A method for producing a metal sleeve includes providing a first metal sleeve semi-finished product having a metal body. The metal body surrounds an inner channel. At least one groove is located in the metal body on the side of the inner channel. The first metal sleeve semi-finished product is pressed into a first die by means of a punch and in the process is formed by impact extrusion into the metal sleeve to be produced. The first die is designed such that a proximal front edge, which is spaced apart from the distal front edge and delimits the groove in the proximal direction, is formed in the metal body on the side of the inner channel. A metal sleeve includes a metal body which surrounds an inner channel running between a proximal and a distal opening. The inner channel has at least one groove set back into the metal body, running in the longitudinal direction of the inner channel and stepped on both sides by a distal and a proximal front edge. The proximal front edge of the groove is produced by impact extrusion. A method for producing a gearbox is provided.

Classes IPC  ?

• B21K 21/12 - Formage des extrémités d'articles creux
• B21K 21/08 - Formage d'articles creux, à sections différentes dans le sens longitudinal, p. ex. gicleurs, bougies d'allumage
• B21K 21/16 - Remise en forme de corps creux selon une section droite déterminée
• B21C 23/00 - Extrusion des métauxExtrusion par percussion
• B21J 5/12 - Formage de profilés sur des surfaces internes ou externes
• B21K 1/06 - Fabrication d'éléments de machines d'arbres
• B21C 23/18 - Fabrication de produits non revêtus par extrusion par percussion
• F16H 57/021 - Structures de support d'arbres, p. ex. parois de séparation, orifices de logement de paliers, parois de carter ou couvercles avec paliers