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1. WO2020135924 - FINE-BLANKING PROCESS

Publication Number WO/2020/135924
Publication Date 02.07.2020
International Application No. PCT/EP2019/025481
International Filing Date 23.12.2019
IPC
B21D 28/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
28Shaping by press-cutting; Perforating
02Punching blanks or articles with or without obtaining scrap; Notching
06Making more than one part out of the same blank; Scrapless working
B21D 28/16 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
28Shaping by press-cutting; Perforating
02Punching blanks or articles with or without obtaining scrap; Notching
16Shoulder or burr prevention
B21D 53/14 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
53Making other particular articles
14belts, e.g. machine-gun belts
CPC
B21D 28/06
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
28Shaping by press-cutting; Perforating
02Punching blanks or articles with or without obtaining scrap
06Making more than one part out of the same blank; Scrapless working
B21D 28/16
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
28Shaping by press-cutting; Perforating
02Punching blanks or articles with or without obtaining scrap
16Shoulder or burr prevention ; , e.g. fine-blanking
B21D 53/14
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
53Making other particular articles
14belts, e.g. machine-gun belts
Applicants
  • ROBERT BOSCH GMBH [DE]/[DE]
Inventors
  • MUTSAERS, Robert Arnoldus Andreas
  • PRINSEN, Lucas Hendricus Robertas Maria
  • MAURITSZ, Peter-Paul
Agents
  • BOSCH TRANSMISSION TECHNOLOGY B.V.
Priority Data
PCT/EP2018/02533824.12.2018EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FINE-BLANKING PROCESS
(FR) PROCÉDÉ DE DÉCOUPAGE FIN
Abstract
(EN)
The invention concerns a fine-blanking process for the manufacture of transverse elements (51) for a push belt for a continuously variable transmission, wherein at least two transverse elements (51) are simultaneously blanked from a strip of basic material (2) at two blanking positions (1, 3; 2, 4) that are mutually separated along the length of the strip (52). According to the invention, a slit (5; 5a, 5b,5c) is provided to either side of at least one of the said two blanking positions (1, 3; 2, 4), extending perpendicular to the length of the strip (52).
(FR)
L'invention concerne un procédé de découpage fin servant à fabriquer des éléments transversaux (51) pour une courroie de poussée pour une transmission à variation continue, au moins deux éléments transversaux (51) étant découpés simultanément à partir d'une bande de matériau de base (2) à deux emplacements de découpage (1, 3 ; 2, 4) séparés l'un de l'autre sur la longueur de la bande (52). Selon l'invention, une fente (5 ; 5a, 5b, 5c) est formée de part et d'autre d'au moins un des deux emplacements de découpage (1, 3 ; 2, 4), ladite fente s'étendant perpendiculaire à la longueur de la bande (52).
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