ClassID:

38671

B21D31/06 - CPC Classification

Classification description:

Other methods for working sheet metal, metal tubes, metal profiles Deforming sheet metal, tubes or profiles by sequential impacts, e.g. hammering, beating, peen forming

Recent Application in this class:
#1
20250178062
2025-06-05

MODULAR ATTACHMENTS FOR A PLANISHING HAMMER

#2
20240181515
2024-06-06

DEVICE AND METHOD FOR CONTINUOUSLY PRODUCING AN AT LEAST PARTLY HOLLOW SHAFT HAVING A VARYING INNER AND/OR OUTER DIAMETER

#3
20240075512
2024-03-07

Vehicle body element dent system and method

#4
20230226642
2023-07-20

SURFACE TREATMENT METHOD

#5
20230070535
2023-03-09

Peening apparatus and method of peening using the same

#6
20220402013
2022-12-22

Device for strengthening the surface of products, method and use thereof

#7
20220042778
2022-02-10

Method and apparatus for providing a measuring tape with increased cupping

#8
20210172034
2021-06-10

Preparing method of engine valve

#9
20200164422
2020-05-28

Method and apparatus for impacting metal parts

#10
20200055165
2020-02-20

Apparatus and method for peening of machine components

#11
20190337120
2019-11-07

Dual sided shot peening of BLISK airfoils

#12
20190337040
2019-11-07

Apparatus, system, and method for forming metal parts

#13
20190009387
2019-01-10

Protector for shot-blasting

#14
20180141265
2018-05-24

Methods and systems for fast imprinting of nanometer scale features in a workpiece

#15
20180117735
2018-05-03

Apparatus and process for surface treating interior of a workpiece

#16
20180111181
2018-04-26

Textured hammer and method of using same

#17
20170368665
2017-12-28

MASK FOR USE WITH PARTICLE IMPACT PROCESSES AND METHODS OF USE THEREOF

#18
20170348826
2017-12-07

Tools and related methods for cold working fluid ends

#19
20170348809
2017-12-07

Vibropeening system and a method of using the same

#20
20170291280
2017-10-12

Apparatus and method for peening of machine components

#21
20170165736
2017-06-15

Apparatus, system, and method for forming metal parts

#22
20160361746
2016-12-15

Water jet peening device

#23
20160262786
2016-09-15

SURGICAL BLADES WITH FATIGUE RESISTANT PROPERTIES

#24
20160114370
2016-04-28

Plate-like-workpiece twisting and retaining apparatus, plate-like-workpiece twisting and retaining method, and plate-like-workpiece twisting and shaping method

#25
20160067906
2016-03-10

Determining part orientation for incremental sheet forming

#26
20160052038
2016-02-25

Deformation apparatus

#27
20150290696
2015-10-15

Apparatus and a method for surface processing a metallic structure

#28
20150258597
2015-09-17

METHOD FOR REDUCING THE DIAMETER OF AN OPENING

#29
20150258596
2015-09-17

Peening device and peening method

#30
20150174636
2015-06-25

PEENING MACHINE

#31
20150082776
2015-03-26

Method for improving durability of exhaust pipe

#32
20150075248
2015-03-19

Method and apparatus for impacting metal parts for aerospace applications

#33
20150075240
2015-03-19

Control feedback loop for real-time variable needle peen forming

#34
20150068262
2015-03-12

Apparatus and method for shot peening of blade mounting areas on a rotor arrangement disc

#35
20150017323
2015-01-15

Knuckle design and system of making

#36
20150013413
2015-01-15

Water Jet Peening Apparatus and Water Jet Peening Method

#37
20150013411
2015-01-15

SYSTEM AND METHOD FOR IMPROVING THE STRENGTH OF RAILCAR COMPONENTS

#38
20140366600
2014-12-18

Curvature retaining device for plate-shaped workpiece, curvature retaining method for plate-shaped workpiece, and curvature forming method for plate-shaped workpiece

#39
20140360241
2014-12-11

Shot peening device and shot peening method

#40
20140325841
2014-11-06

Method for reshaping a turbomachine blade that has at least one zone that has become deformed using peening

#41
20140318365
2014-10-30

RESTRICTOR AND PRODUCTION PROCESS OF A FLUID LEAKAGE RESTRICTOR FOR AEROSTATIC BEARINGS

#42
20140193549
2014-07-10

Food holding device, method of making, and method of storing cooked food

#43
20140190231
2014-07-10

Wing panel and aircraft main wing

#44
20130312480
2013-11-28

BULK NANO-STRUCTURED LOW CARBON STEEL AND METHOD OF MANUFACTURING THE SAME

#45
20120211603
2012-08-23

WING PANEL AND AIRCRAFT MAIN WING

#46
20120084958
2012-04-12

METHOD FOR REDUCING THE DIAMETER OF AN OPENING

#47
20110223300
2011-09-15

Food holding device, method of making, and method of storing cooked food

#48
20100257910
2010-10-14

Method and apparatus for reducing force needed to form a shape from a sheet metal

#49
20100224349
2010-09-09

Heat exchange tube

#50
20090249850
2009-10-08

Impact detection marker device and a corresponding process method

#51
20090000345
2009-01-01

Manufacturing Method, System and Apparatus for Producing a Molding System Component

#52
20050204528
2005-09-22

Method to reduce the width of a slot in a pipe or tube

#53
20050086990
2005-04-28

Apparatus and method for forming curvature in sheet metal

#54
16379027
2023-10-24

Tools and related methods for cold-working fluid ends

#55
14675465
2020-03-03

Method and apparatus for impacting metal parts