ClassID:

38647

B21D28/16 - CPC Classification

Classification description:

Shaping by press-cutting; Perforating; Punching blanks or articles with or without obtaining scrap ; Notching Shoulder or burr prevention, e.g. fine-blanking

Recent Application in this class:
#1
20260138391
2026-05-21

METHOD AND APPARATUS FOR PRODUCING A CALIBRATED STAMPED PART

#2
20250353065
2025-11-20

MOTOR VEHICLE COMPONENT AND METHOD FOR ITS PRODUCTION BY HOT CUTTING

#3
20240390998
2024-11-28

CUTTING APPARATUS AND MULTI-LAYERED MATERIAL

#4
20240342784
2024-10-17

PRESS-FORMED PRODUCT, ROLLING BEARING, VEHICLE, MACHINE, PRESS-FORMED PRODUCT MANUFACTURING METHOD, ROLLING BEARING MANUFACTURING METHOD, VEHICLE MANUFACTURING METHOD, AND MACHINE MANUFACTURING METHOD

#5
20240238862
2024-07-18

BLANK, FORMED ARTICLE, DIE ASSEMBLY, AND METHOD FOR PRODUCING BLANK

#6
20230264248
2023-08-24

METAL SHEET SHEARING WORK METHOD, PRESSED COMPONENT MANUFACTURING METHOD, METAL SHEET, AND SHEARING DIE FOR METAL SHEET

#7
20220008980
2022-01-13

Metal parts blanking process for rotor and stator of an electric motor

#8
20210316354
2021-10-14

Fine blanking method and device for forming friction plates with friction material layers

#9
20210086250
2021-03-25

METHOD FOR OPERATING A PROCESSING INSTALLATION WITH A MOVABLE PUNCH

#10
20210060635
2021-03-04

Device for manufacturing laminated iron core and method for manufacturing laminated iron core

#11
20200406332
2020-12-31

Trimming die for casting of front steering knuckle in double-wishbone suspension

#12
20200331052
2020-10-22

Method for operating a fine blanking system

#13
20200230682
2020-07-23

Blank, formed article, die assembly, and method for producing blank

#14
20200130041
2020-04-30

Method for cutting metal plate, method for manufacturing metal product, and metal product

#15
20200009633
2020-01-09

Fine blanking press and method for handling a process material to be processed in a fine blanking press

#16
20190296510
2019-09-26

Mobile terminal, power interface, and method for manufacturing power interface

#17
20190291160
2019-09-26

METHOD FOR MACHINING A SHEET-METAL PROFILE

#18
20190288471
2019-09-19

Method for manufacturing power pin of power interface without removing burrs

#19
20190165537
2019-05-30

Method for manufacturing power interface

#20
20190151926
2019-05-23

Process for blanking of metal parts

#21
20190060973
2019-02-28

Shearing method

#22
20190032749
2019-01-31

Metal element for continuously variable transmission and method of producing the same

#23
20180345350
2018-12-06

Method for producing stamped parts

#24
20180333760
2018-11-22

Shearing method

#25
20180272408
2018-09-27

Cutting method using a stamping press

#26
20180272407
2018-09-27

CUTTING DEVICE AND CUTTING METHOD

#27
20180200773
2018-07-19

Protrusion molding device, protrusion molding method, and molded article

#28
20180178268
2018-06-28

Hot-formed metal sheet and method of producing an opening in such a metal sheet

#29
20180071842
2018-03-15

Punching device, punch and method

#30
20180036785
2018-02-08

Punching processing method, method of manufacturing press-formed product, and press-formed product

#31
20170361369
2017-12-21

Progressive die machine and method for manufacturing laminated iron cores by using same

#32
20170320122
2017-11-09

Blank, formed article, die assembly, and method for producing blank

#33
20170246675
2017-08-31

Method for producing a clamping ring

#34
20170106427
2017-04-20

Fine blanking cam die

#35
20170080475
2017-03-23

Manufacturing method and manufacturing device of sheared components

#36
20170008186
2017-01-12

Apparatus and method for stripping away/pushing out a punched grid/internally formed part and ejecting a blanked part in a precision blanking press

#37
20170008062
2017-01-12

Precision blanking press

#38
20160339501
2016-11-24

Burring method and burring apparatus

#39
20160318088
2016-11-03

Devices and methods for pressure forming connecting webs between workpiece parts of a plate-like workpiece

#40
20160256913
2016-09-08

STEPPED PUNCH

#41
20160214266
2016-07-28

Cutting device for metal foil

#42
20160207088
2016-07-21

APPARATUS AND METHOD OF SHEARING FOR QUALITY IMPROVEMENT FOR STEEL PLATE SHEARING EDGE

#43
20160129492
2016-05-12

Press molding method

#44
20160052039
2016-02-25

Device and method for shaping sheared edges on stamped or fine-blanked parts having a burr

#45
20160038991
2016-02-11

Device and method for producing clutch bodies that are suitable for synchronizer systems and provided with teeth or tooth sections

#46
20150308166
2015-10-29

Method for producing motor vehicle locks with a twisted locking part edge

#47
20150183020
2015-07-02

Stamping press

#48
20150174635
2015-06-25

Stamping method and stamping apparatus

#49
20150158073
2015-06-11

Device and method for preventing a tool from breaking when fine blanking and/or forming a workpiece

#50
20150135794
2015-05-21

Pressing method and pressing device for forming punched piece by punching metal plate with die and punch

#51
20150122101
2015-05-07

Trough-form fine blanking device

#52
20150101385
2015-04-16

Tool and method for producing stamped parts

#53
20150068375
2015-03-12

Method and device for precision cutting of workpieces in a press

#54
20150028547
2015-01-29

Methods and devices for cutting composite material and sealing devices made of composite material

#55
20140020534
2014-01-23

FINE HYDRO-BLANKING DEVICE

#56
20130276603
2013-10-24

Punch of punching press, nibbler assembly, and method of forming elongated hole in sheet material

#57
20130186163
2013-07-25

Method and apparatus to manufacture metallic bipolar plates

#58
20130174626
2013-07-11

Work-punching device, work-punching method, and method for producing element for continuously variable transmission

#59
20130000456
2013-01-03

Nibbler assembly for punch press and method of forming elongated hole in sheet material

#60
20120312064
2012-12-13

Punching sheet metal

#61
20120125067
2012-05-24

Orifice plate and manufacturing method of the orifice plate

#62
20120097001
2012-04-26

Device for removing precision punching respectively fine blanking parts from a tool of a press

#63
20120045125
2012-02-23

Method for the prediction and respectively determination of the collection on a stamping part

#64
20120027977
2012-02-02

Method and apparatus for ripping plate material, and plate material

#65
20110265541
2011-11-03

Production method for stamped parts and apparatus

#66
20110239834
2011-10-06

METHOD AND APPARATUS FOR PROCESSING HOLE WITH ROUNDED EDGE

#67
20110227246
2011-09-22

Bur removing apparatus

#68
20110192028
2011-08-11

Method and device for influencing the cut and functional face on fine-blanked finished parts

#69
20110132162
2011-06-09

Method and device for producing precision blankings from a material strip

#70
20110000349
2011-01-06

Hydraulic fine blanking head for a press and method of its infeed

#71
20100043519
2010-02-25

Method and device for controlling the synchronization of cylinder/piston units and for reducing pressure peaks during forming and/or fineblanking on a fineblanking or stamping press

#72
20090301161
2009-12-10

Shear punching die assemblies

#73
20090173129
2009-07-09

Method and device for the production of a stamping with enlarged functional surface

#74
20090165525
2009-07-02

Method and device for the production of a stamping with almost smooth cutting and enlarged functional surface

#75
20090103995
2009-04-23

Method and device for lubricating tool and workpiece at cutting

#76
20090090157
2009-04-09

Method and device for fine blanking and forming a workpiece

#77
20090090156
2009-04-09

Member having a chamfered through hole and manufacturing method of the same

#78
20090090007
2009-04-09

Method of manufacturing gear from metal sheet and the gear manufactured by the method

#79
20090025447
2009-01-29

Method and device for the production and/or machining of pieces

#80
20090010723
2009-01-08

Method and tool for precision cutting

#81
20080245206
2008-10-09

Machine-Type Device For Raising Machine Punches of the Type Using Adiabatic Energy Change

#82
20080216630
2008-09-11

Device for Assembling Machine Components Using Adiabatic Energy Change

#83
20080216624
2008-09-11

PUNCH DIE AND METHOD FOR MAKING A HIGH QUALITY CUT SURFACE ON A METAL WORKPIECE

#84
20080110231
2008-05-15

PRESS WORKING APPARATUS

#85
20080098788
2008-05-01

Pressing Machine, Pressing Method, and Punched Article

#86
20080053181
2008-03-06

Method and tool for the production of three-dimensional attachments by forming and fine blanking operations

#87
20080014036
2008-01-17

Steel plate sprocket and method of producing same

#88
20070157696
2007-07-12

Fine-blanking device

#89
20070144230
2007-06-28

Shearing device

#90
20070093333
2007-04-26

Link plate for roller chain and manufacturing method thereof

#91
20060123872
2006-06-15

Method of forming through-hole and through-hole forming machine

#92
20060086171
2006-04-27

Apparatus and method for stamping and deburring clutch discs

#93
20050211032
2005-09-29

Cutting technology for metal sheet

#94
14074559
2014-07-29

Piercing apparatus with scrap removing capability