Patents-Review.com
ClassID:

38519 ⎘

B21D11/14 - CPC Classification

Classification description:

Bending not restricted to forms of material mentioned in only one of groups , , ; Bending not provided for in groups  -  ; Twisting Twisting

Sub-classes:
Recent Application in this class:
#1
20260077399
2026-03-19

METHOD OF MANUFACTURING PRESS-FORMED PART

 #2
20210291254
2021-09-23

Processing device, and method for controlling processing device

 #3
20210154728
2021-05-27

Manufacturing process, tool stand, and drill bit

 #4
20210060692
2021-03-04

Method of forming gas turbine engine components

 #5
20210039151
2021-02-11

Compressive torsion forming device

 #6
20200215642
2020-07-09

Hollow airfoil with catenary profiles

 #7
20200049427
2020-02-13

Fin-assembled tube manufacturing method and double tube manufacturing method

 #8
20200009631
2020-01-09

TORSIONAL SEVERE PLASTIC DEFORMATION METHOD FOR METAL BAR, EMPLOYING SURFACE POLISHING TO IMPROVE MECHANICAL PROPERTIES OF METAL BAR

 #9
20190099794
2019-04-04

Method and apparatus for forming a helical type flight

 #10
20190015892
2019-01-17

Manufacturing process, tool stand, and drill bit

 #11
20180169729
2018-06-21

Apparatus and method for correcting vehicle member

 #12
20180154414
2018-06-07

Helical layer structure and manufacturing method of helical layer structure

 #13
20180021841
2018-01-25

Ring manufacturing method, ring manufacturing apparatus, and ring manufactured by the ring manufacturing method

 #14
20170326610
2017-11-16

APPARATUS AND METHOD FOR FORMING A SCREW FLIGHT

 #15
20170268090
2017-09-21

METHOD FOR ENHANCING ANTIFOULING PROPERTIES OF HIGH ENTROPY ALLOYS

 #16
20160199901
2016-07-14

Manufacturing System And Methods

 #17
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

 #18
20160082493
2016-03-24

Method and appraratus for forming a helical tube bundle

 #19
20150219115
2015-08-06

Blade for axial compressor rotor

 #20
20150076215
2015-03-19

Method of manufacturing curvilineal closed structure parts without flange and apparatus for the same

 #21
20150020565
2015-01-22

Part correcting device for automobile part

 #22
20140331733
2014-11-13

Torsional extreme-plastic processing method of conic metal pipe

 #23
20140196515
2014-07-17

Apparatus and method for forming a screw flight

 #24
20130130104
2013-05-23

CURRENT COLLECTOR, ENERGY STORAGE ELEMENT, AND METHOD OF MANUFACTURING CURRENT COLLECTOR

 #25
20130118222
2013-05-16

Apparatus for twisting electrical bar conductors, in particular for bar windings of electrical machines, with conductor's clamping system

 #26
20130097860
2013-04-25

Method for forming a blower wheel having longitudinally inclined blades

 #27
20120326374
2012-12-27

Manufacturing system and methods

 #28
20120260712
2012-10-18

Device For Forming A Work Piece

 #29
20120247927
2012-10-04

ARCHIMEDEAN SCREW

 #30
20120174384
2012-07-12

Tooling and a method for hot forging pieces of sheet metal

 #31
20110293959
2011-12-01

Method for twisting hollow bars

 #32
20100294011
2010-11-25

Manufacturing method and manufacturing apparatus for twisted flat bar

 #33
20100116013
2010-05-13

Forming apparatus

 #34
20070157697
2007-07-12

Tool to manipulate wrought iron

 #35
20060108792
2006-05-25

Pipe arrangement branching structure, method for working perforated pipe and method for working branch pipe

 #36
20060101890
2006-05-18

Method for twisting a hollow metal tube

 #37
20060010955
2006-01-19

Method of, and machine for making a spiral decorative element of metal

 #38
20050217103
2005-10-06

Method for manufacturing a twisted handle and device for twisting the handle

 #39
20050103482
2005-05-19

Multi-tube in spiral heat exchanger

 #40
20050061048
2005-03-24

Method and apparatus for fabricating helically shaped ribbons of material