ClassID:

118991

C21D7/08 - CPC Classification

Classification description:

Modifying the physical properties of iron or steel by deformation by cold working of the surface by burnishing or the like

Recent Application in this class:
#1
20230191560
2023-06-22

Metal product surface member and method for burnishing same

#2
20220251674
2022-08-11

Metallic components with enhanced mechanical strength through surface mechanical grinding

#3
20200384607
2020-12-10

Deep roll peening system and method

#4
20200262026
2020-08-20

Roller burnishing tool

#5
20200239975
2020-07-30

Metallic components with enhanced mechanical strength through surface mechanical grinding

#6
20200048725
2020-02-13

Ultrasonic roller burnishing system and method, and method for machining component

#7
20190054591
2019-02-21

ROLLER BURNISHING TOOL

#8
20180371594
2018-12-27

Solid-state welding of coarse grain powder metallurgy nickel-based superalloys

#9
20180339398
2018-11-29

Burnishing tool and method of manufacturing the same

#10
20180334925
2018-11-22

Green repair of oxidation and corrosion resistant coatings

#11
20170348821
2017-12-07

Deep roll peening system and method

#12
20170157736
2017-06-08

Deep rolling tool for blade fatigue life enhancement

#13
20170122374
2017-05-04

Method of imparting compressive residual stress to balls

#14
20170121006
2017-05-04

Deep rolling forming

#15
20170089393
2017-03-30

Method of forming a bearing component

#16
20160298203
2016-10-13

High fatigue strength components requiring areas of high hardness

#17
20160208370
2016-07-21

Method for machining a cylinder wall of an internal combustion engine

#18
20160193626
2016-07-07

Method for coating a cylinder wall of an internal combustion engine

#19
20160175917
2016-06-23

Apparatus for smoothing a toothing system and production process

#20
20160108487
2016-04-21

Pneumatic needling device

#21
20160068278
2016-03-10

Preventing cracks at bolted or riveted joints of aircraft structural parts

#22
20160017450
2016-01-21

Localized hardening of metallic surfaces

#23
20150377177
2015-12-31

Cylinder liner having roll-burnished recess

#24
20150367459
2015-12-24

Rolling tool device

#25
20150367458
2015-12-24

Rolling tool device

#26
20150361516
2015-12-17

METHOD OF HEAT TREATING METAL ARTICLES AND METAL ARTICLE TREATED THEREBY

#27
20150258596
2015-09-17

Peening device and peening method

#28
20150174728
2015-06-25

Method for machining materials by milling and subsequent brushing

#29
20150165515
2015-06-18

Deep rolling tool for processing blade root

#30
20150047162
2015-02-19

Device and method for electromechanically-assisted roller burnishing

#31
20140149053
2014-05-29

TOOLS FOR ENHANCING SURFACE NANOCRYSTALLIZATION AND METHOD FOR MEASURING A NANOCRYSTALLIZATION EFFECT

#32
20140130321
2014-05-15

Burnishing tool and method for burnishing

#33
20130343901
2013-12-26

Repair article of a gas turbine engine

#34
20130260168
2013-10-03

COMPONENT HOLE TREATMENT PROCESS AND AEROSPACE COMPONENT WITH TREATED HOLES

#35
20130219982
2013-08-29

Rolling tool device

#36
20130186161
2013-07-25

Roll peening tooling and process

#37
20120227530
2012-09-13

Work Piece Having Different Qualities

#38
20120204390
2012-08-16

Burnishing tool and method for burnishing

#39
20120114091
2012-05-10

Zirconium alloy material

#40
20120055222
2012-03-08

METHOD AND APPARATUS FOR SURFACE HARDENING A COMPONENT, WHICH IS MADE OF AN INTERMETALLIC COMPOUND AT LEAST IN THE REGION OF THE SURFACE TO BE HARDENED

#41
20120034490
2012-02-09

Article for improved adhesion of fatigue-prone components

#42
20110239835
2011-10-06

Steel for machine structure use excellent in cutting tool lifetime and machining method of same

#43
20110123820
2011-05-26

Impact treatment method for improving fatigue characteristics of welded joint, impact treatment device for improving fatigue characteristics for same, and welded structure superior in fatigue resistance characteristics

#44
20110079070
2011-04-07

Method for preventing or arresting crack development and propagation

#45
20100319344
2010-12-23

Compressor wheel

#46
20100300229
2010-12-02

Gear

#47
20100248003
2010-09-30

Metallic article with improved fatigue performance and corrosion resistance

#48
20100151270
2010-06-17

Process of forming nanocrystal layer

#49
20100119375
2010-05-13

Pre-coating burnishing of erosion coated parts

#50
20100028713
2010-02-04

Method and article for improved adhesion of fatigue-prone components

#51
20090314758
2009-12-24

Methods of treating metal articles and articles made therefrom

#52
20090269208
2009-10-29

Method of repairing an article

#53
20080286597
2008-11-20

Process of Forming Ultrafine Crystal Layer, Machine Component Having Ultrafine Crystal Layer Formed by the Ultrafine Crystal Layer Forming Process, Process of Producing the Machine Component, Process of Forming Nanocrystal Layer, Machine Component Having Nanocrystal Layer Formed by the Nanocrystal Layer Forming Process, and Process of Producing the Machine Component

#54
20080217380
2008-09-11

Method and apparatus to relieve residual stress or distortion in a heat processed article

#55
20080201951
2008-08-28

Work Piece Having Different Qualities

#56
20080196465
2008-08-21

Procedure for deep rolling crankshafts

#57
20080160891
2008-07-03

Method for determining initial burnishing parameters

#58
20080155802
2008-07-03

Method for increasing fatigue notch capability of airfoils

#59
20080127476
2008-06-05

Method of mitigating the effects of damage in an article

#60
20080008595
2008-01-10

Compressor wheel

#61
20080003109
2008-01-03

Component of variable thickness having residual compressive stresses therein, and method therefor

#62
20070281088
2007-12-06

Low plasticity burnishing of coated titanium parts

#63
20070266754
2007-11-22

Metallic article with improved fatigue performance and corrosion resistance and method for making the same

#64
20070234772
2007-10-11

Surface treatment apparatus and method

#65
20070228625
2007-10-04

HELICAL COMPRESSION SPRING

#66
20070227215
2007-10-04

Method and apparatus for preventing or arresting crack development and propagation

#67
20070175857
2007-08-02

Decorative surface treatment for metals

#68
20070175030
2007-08-02

Preparation of an article surface having a surface compressive texture

#69
20070010173
2007-01-11

Apparatus for forming microscopic recesses on a cylindrical bore surface and method of forming the microscopic recesses on the cylindrical bore surface by using the apparatus

#70
20070009662
2007-01-11

Surface strengthening method

#71
20060277753
2006-12-14

Method of repairing a blade member

#72
20060207306
2006-09-21

Method for treating the surface of a machine element

#73
20060053626
2006-03-16

Method for producing high-pressure fuel accumulators

#74
20050224562
2005-10-13

Apparatus and method for forming a weld joint having improved physical properties

#75
20050160602
2005-07-28

Method for manufacturing a bearing raceway member

#76
20050155203
2005-07-21

Method for improving the magnitude of compressive stress developed in the surface of a part

#77
20050056013
2005-03-17

Turbocharger compressor wheel having a counterbore treated for enhanced endurance to stress-induced fatigue and configurable to provide a compact axial length

#78
18132687
2024-09-10

Method for mechanical surface treatment using electro-pulse assisted deep rolling