Title:
金属部品を製造するための複層打抜き加工方法
Document Type and Number:
Japanese Patent JP7401428
Kind Code:
B2
Abstract:
The present disclosure relates to a process for the blanking of metal parts (10), wherein a multi-layered basic material (51) with a number of mutually stacked, preferably essentially identical, individual layers (50) is placed and clamped partly between a blanking die (80) and a blank holder (70) and wherein the blanking punch (30) is moved relative to the blanking die (80), whereby several blanked parts (10; 11) are cut and separated from the multi-layered basic material (51). According to the present disclosure, prior to such blanking thereof, the multi-layered basic material (51) is cold rolled without being annealed or normalized thereafter, in order to the decrease a plastic deformation of in particular the intermediate layers (50) of the multi-layered basic material (51) during blanking. After blanking the metal parts (10) are annealed in order to improve the mechanical, electrical and/or magnetic properties thereof.
Inventors:
Arien Brunzuma
Belt Pennings
coraine snippe
Jens Burghaus
Shipke Corp Month
Belt Pennings
coraine snippe
Jens Burghaus
Shipke Corp Month
Application Number:
JP2020524554A
Publication Date:
December 19, 2023
Filing Date:
November 02, 2018
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
B21D28/02; B21D28/16; H02K15/02
Domestic Patent References:
| JP2016129902A | ||||
| JP2004167547A | ||||
| JP8057557A | ||||
| JP2016127092A | ||||
| JP2007311652A | ||||
| JP2019510640A |
Attorney, Agent or Firm:
Einzel Felix-Reinhard
Taku Morita
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima class
Taku Morita
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima class