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1. WO2020135926 - MULTI-LAYER FINE BLANKING PROCESS FOR MANUFACTURING METAL PARTS AND FINE BLANKING DEVICE FOR CARRYING OUT SUCH PROCESS

Publication Number WO/2020/135926
Publication Date 02.07.2020
International Application No. PCT/EP2019/025484
International Filing Date 24.12.2019
IPC
B21D 28/22 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
22Notching the peripheries of circular blanks, e.g. laminations for dynamo-electric machines
B21D 35/00 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
35Combined processes according to methods covered by groups B21D1/-B21D31/110
B21D 39/03 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
39Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
03of sheet metal otherwise than by folding
H02K 15/02 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
15Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
02of stator or rotor bodies
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
CPC
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 28/22
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
22Notching the peripheries of circular blanks, e.g. laminations for dynamo-electric machines
B21D 35/007
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
35Combined processes according to ; or processes combined with; methods covered by groups B21D1/00 - B21D31/00
002Processes combined with methods covered by groups B21D1/00 - B21D31/00
005characterized by the material of the blank or the workpiece
007Layered blanks
B21D 39/03
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
39Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating
03of sheet metal otherwise than by folding
B21D 39/031
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
39Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating
03of sheet metal otherwise than by folding
031Joining superposed plates by locally deforming without slitting or piercing
H02K 1/2766
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
27Rotor cores with permanent magnets
2706Inner rotor
272where the magnetisation axis of the magnets is radial or tangential
274consisting of a plurality of circumferentially positioned magnets
2753consisting of magnets or groups of magnets arranged with alternating polarity
276Magnets embedded in the magnetic core
2766having a flux concentration effect
Applicants
  • ROBERT BOSCH GMBH [DE]/[DE]
Inventors
  • KOOPMANS, Sipke
  • JANSSEN, Theodorus, Martinus, Henricus
Agents
  • PLEVIER, Gabriël, Anton, Johan, Maria
Priority Data
10431124.12.2018NL
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MULTI-LAYER FINE BLANKING PROCESS FOR MANUFACTURING METAL PARTS AND FINE BLANKING DEVICE FOR CARRYING OUT SUCH PROCESS
(FR) PROCÉDÉ DE DÉCOUPAGE FIN MULTI-COUCHE POUR LA FABRICATION DE PIÈCES MÉTALLIQUES ET DISPOSITIF DE DÉCOUPAGE FIN POUR LA MISE EN ŒUVRE D'UN TEL PROCÉDÉ
Abstract
(EN)
The present invention relates to a process for the simultaneously blanking of metal parts from a multi-layered basic material (51) composed of a number of mutually stacked, preferably essentially identical, individual layers (50). Prior to such blanking of the metal parts, the multi-layered basic material (51) is provided with an interlock (1) by the local plastic deformation thereof between a press-locking punch (101) and an anvil (103), whereby the individual layers (50) are mutually fixated in all three spatial dimensions. According to the invention, the interlock (1) is provided to the multi-layered basic material (51) outside the (virtual) contour of the metal parts (10) to be blanked.
(FR)
La présente invention concerne un procédé pour découper simultanément des pièces métalliques à partir d'un matériau de base multi-couche (51) composé d'un certain nombre de couches individuelles (50), de préférence sensiblement identiques, empilées les unes par rapport aux autres. Avant un tel découpage des pièces métalliques, le matériau de base multi-couche (51) est pourvu d'un dispositif de verrouillage réciproque (1) par la déformation plastique locale de celui-ci entre un poinçon de verrouillage à la presse (101) et une enclume (103), les couches individuelles (50) étant fixées les unes aux autres dans l'ensemble des trois dimensions spatiales. Selon l'invention, le dispositif de verrouillage réciproque (1) est disposé sur le matériau de base multi-couche (51) à l'extérieur du contour (virtuel) des pièces métalliques (10) à découper.
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