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1. WO1996002337 - APPARATUS FOR FORGE-FORMING OUTER-RING OF CONSTANT VELOCITY JOINT AND METHOD THEREOF

Publication Number WO/1996/002337
Publication Date 01.02.1996
International Application No. PCT/KR1995/000091
International Filing Date 18.07.1995
IPC
B21K 1/76 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
1Making machine elements
76elements not mentioned in one of the preceding groups
CPC
B21K 1/762
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
1Making machine elements
76elements not mentioned in one of the preceding groups
762Coupling members for conveying mechanical motion, e.g. universal joints
B21K 1/765
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
1Making machine elements
76elements not mentioned in one of the preceding groups
762Coupling members for conveying mechanical motion, e.g. universal joints
765Outer elements of coupling members
Applicants
  • MAENG, Hyuk, Jae [KR/KR]; KR
Inventors
  • MAENG, Hyuk, Jae; KR
Agents
  • HONG, Sung, Chul; 823-10, Yeoksam-dong Kangnam-ku Seoul 135-080, KR
Priority Data
1994/1719016.07.1994KR
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS FOR FORGE-FORMING OUTER-RING OF CONSTANT VELOCITY JOINT AND METHOD THEREOF
(FR) APPAREIL DE FORMATION PAR FORGEAGE D'UNE BAGUE EXTERIEURE POUR JOINT HOMOCINETIQUE ET PROCEDE ASSOCIE
Abstract
(EN)
An outer-ring of a constant velocity joint is fabricated by pressing an inner surface of the pre-processed outer-ring (2A) set in a lower die (3) by using a forging punch (20) in which plural punch pieces (11) each having a protrusion (111) corresponding to the ball track groove (6) are slidably coupled to plural downwardly tapered grooves (131) of a punch piece slide member (13), so that an upper periphery (9A) of the pre-processed outer-ring (2A) is contracted in line with a head shape of the forging punch (20), and ascending the forging punch.
(FR)
Fabrication d'une bague extérieure pour joint homocinétique par pressage d'une face interne d'une ébauche de bague extérieure (2A) placée dans une matrice inférieure (3), au moyen d'un poinçon à forger (20) dans lequel plusieurs éléments de poinçon (11) présentant chacun une surépaisseur (111) correspondant à la gorge à billes (6) coopèrent par coulissement avec plusieurs rainures (131) d'un élément de poinçon coulissant (13), leur section transversale s'amenuisant progressivement vers le bas, de sorte que la périphérie supérieure (9A) de l'ébauche de bague extérieure (2A) soit comprimée conformément à la forme de la tête du poinçon à forger (20), ce dernier étant ensuite relevé.
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