ClassID:

38605

B21D25/02 - CPC Classification

Classification description:

Working sheet metal of limited length by stretching, e.g. for straightening by pulling over a die

Recent Application in this class:
#1
20240293859
2024-09-05

Modular Stretch Block Using Additive Manufacturing

#2
20210237139
2021-08-05

METHODS AND ASSEMBLIES FOR FORMING AN ANNULAR OBJECT

#3
20200206799
2020-07-02

Stretch forming method for a sheet metal skin with convex and concave curvatures

#4
20200197997
2020-06-25

Stretch forming die

#5
20190308235
2019-10-10

Tensioning device for a sheet of material

#6
20180311718
2018-11-01

Method and apparatus for forming double curvature corrugated and surface textured panels

#7
20180245454
2018-08-30

Lip skin sector and a method and apparatus for forming a lip skin sector

#8
20180236526
2018-08-23

Lip skin sector and a method and apparatus for forming a lip skin sector

#9
20180093316
2018-04-05

METHOD AND APPARATUS FOR FORMING A COMPOUND CURVATURE METAL SKIN

#10
20170002793
2017-01-05

Method for continuously making a helical type curved shaped turbine blade

#11
20160354829
2016-12-08

Reconfigurable metal forming apparatus

#12
20160325331
2016-11-10

Method and apparatus for hot forming metal parts

#13
20160250675
2016-09-01

Bending apparatus and bending method for a plate-shaped metal workpiece

#14
20160167099
2016-06-16

Multipoint stretch forming apparatus enabling individual clamping control for manufacturing a curved panel

#15
20160129491
2016-05-12

Device and method for forming thin plate-shaped substrate

#16
20150367395
2015-12-24

Lip skin sector and a method and apparatus for forming a lip skin sector

#17
20150266077
2015-09-24

STRETCH FORMING SYSTEM AND STRETCH FORMING METHOD

#18
20130094919
2013-04-18

SYSTEM AND METHOD OF MANUFACTURING A STRUCTURE WITH A HIGH PERFORMANCE METAL ALLOY

#19
20130086966
2013-04-11

Method for manufacturing a sheet molded to form a multi-dimensional curved surface

#20
20110180237
2011-07-28

WELDING A METAL PRODUCT

#21
20110162429
2011-07-07

Method for forming a sector for a nacelle lip skin

#22
20110126607
2011-06-02

STRETCH-FORMING DEVICE AND METHOD FOR STRETCH FORMING A WORKPIECE AND STRETCH-FORMED PART

#23
20100107720
2010-05-06

Titanium stretch forming apparatus and method

#24
20100071430
2010-03-25

Stretch forming apparatus with supplemental heating and method

#25
20100043511
2010-02-25

ACTIVE RECONFIGURABLE STRETCH FORMING

#26
20100031726
2010-02-11

APPARATUS FOR AND METHOD OF FORMING CURVED PANELS

#27
20090038365
2009-02-12

Press forming method for aluminum alloy sheet and pressing device

#28
20070186612
2007-08-16

Stretch forming method for a sheet metal skin segment having compound curvatures

#29
20070102493
2007-05-10

Titanium stretch forming apparatus and method

#30
20070032900
2007-02-08

Reconfigurable variable blank-holder force system and method for sheet metal stamping