Patents
Sitemap › B21 - Mechanical metal-working without essentially removing material; Punching metal › B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing material; Punching › B21D 28 - Shaping by press-cutting; Perforating
Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707)
11/2012
11/07/2012CN102764817A Waste-free terminal stamping die
11/07/2012CN102764813A Punching and blanking compound die for partition plate
11/07/2012CN102764810A Manual punching supplementation device
11/07/2012CN102152072B Method for machining porous-surface heat-exchange pipe for boiling heat-transfer equipment
11/07/2012CN102151748B Numerical control punching lathe
11/07/2012CN102120237B Automatic feeding punching machine
11/07/2012CN101716628B Cascading continuous stamping die used for manufacturing fixed panel of automobile door hinge
11/06/2012US8302521 Die with a punch module
11/01/2012WO2012149432A1 Generating channel letters using profiles
10/2012
10/31/2012CN202506741U Precision hole repairing die
10/31/2012CN202506723U Oblique sliding block mechanism
10/31/2012CN202506722U Stainless steel thin-wall tubing punching die of automatic punching machine
10/31/2012CN202506721U Punching mould of stainless steel tube array holes
10/31/2012CN202506720U Bestriding-type hydraulic hole opener
10/31/2012CN202506719U Precise die for main plate B-type tube
10/31/2012CN202506718U Vehicle pipe fitting punching die
10/31/2012CN202506717U Computerized numerical control (CNC) hydraulic square-round hole automatic punching machine
10/31/2012CN202506716U Top-discharging blanking die
10/31/2012CN202506715U Gear punching die
10/31/2012CN202506714U Single trimming die for plate spring leaf
10/31/2012CN202506713U Cylinder-shaped evaporating material blanking mould
10/31/2012CN202506712U Large-size blanking die
10/31/2012CN102756247A Once fine blanking forming method for thick plate disc
10/31/2012CN102756177A Manufacturing method of composite noise-reducing diamond saw blade base body
10/31/2012CN102756036A Marking head device
10/31/2012CN102756035A Cold punching die for machining section of bicycle frame
10/31/2012CN102756034A Manufacturing method of side panel
10/31/2012CN102248063B Punching mechanism for punching die
10/31/2012CN101780508B Process for machining screw pit at tensile part mouth
10/30/2012US8297100 Method and apparatus for making metallic casing
10/30/2012US8296922 Method for producing low-springback half shells
10/25/2012US20120267862 Sealing element for a fuel injector and a method for manufacturing a sealing element for a fuel injector
10/25/2012US20120266643 Method for Producing a Formed Part Furnished with a Through Hole
10/24/2012EP2514535A1 Punch press
10/24/2012CN202498148U Stamping part mould
10/24/2012CN202498140U Mosaic structure for forging and concave mould sleeve
10/24/2012CN202498136U Vertical type punching die including convex die
10/24/2012CN202498135U Vertical type punching die for single-hole tubing
10/24/2012CN202498134U Side hole bidirectional punching die
10/24/2012CN202498133U Side punching mechanism
10/24/2012CN202498132U Punching tool of positioning hole
10/24/2012CN202498131U Punching die for refrigerator door handle.
10/24/2012CN202498130U Flip-over rubber stamping die
10/24/2012CN202498129U Simple composite stamping die
10/24/2012CN202498128U Drawing piece edge trimmer
10/24/2012CN102753385A Method for producing high-strength components by means of adiabatic blanking
10/24/2012CN102744315A Punching mould based on metal punching
10/24/2012CN102744314A Punching mould for cast-weld battery case
10/24/2012CN102744313A Automatic continuous rotating punching machine
10/24/2012CN102744312A Servo indexing closed-loop control system on notching machine
10/24/2012CN102744311A Lateral punching die
10/24/2012CN102744286A Servo notching and winding machine tool
10/23/2012US8291739 Trimming press working apparatus
10/18/2012WO2012140261A1 Method and device for producing polygonal sheet blanks
10/18/2012DE19931932B4 Anfas-Verfahren sowie Presse Chamfering process and Press
10/18/2012DE102011078558A1 Verfahren und Vorrichtung zum Herstellen von polygonalen Blechrohlingen Method and apparatus for the manufacture of polygonal sheet metal blanks
10/17/2012CN202490868U Capacitor two-hole cover plate punching mold
10/17/2012CN202490867U Hub riser hydraulic punching machine
10/17/2012CN202490866U Rotary punching machine for aluminum extrusion parts
10/17/2012CN202490865U Stamping bottom die for elliptic cover plate of capacitor aluminum shell
10/17/2012CN102728725A Magnetic needle blanking device and magnetic needle blanking method
10/17/2012CN102728707A Roll bending forming method and device of cap-shaped sectional material with variable cross section
10/17/2012CN102728703A Lower bolster plate structure
10/17/2012CN102728702A Processing method of spoke air-holes of and turntable rotation controlling device thereof
10/17/2012CN102728701A Hydraulic synchronous punching device and method
10/17/2012CN102728700A Bicycle frame section cold punching die
10/17/2012CN102728699A Process method for machining magnet yoke punched plate of large hydrogenerator step by step
10/17/2012CN102728698A Press working method and press working apparatus
10/17/2012CN102728697A Press working apparatus
10/17/2012CN102059289B Universal hole opener
10/17/2012CN101983792B Continuous punching device for single engineering
10/16/2012US8286458 Lever plate in VGS type turbocharger and method of manufacturing the same
10/10/2012EP2508274A1 Method and device for increasing the bearing area of a fine blanked workpiece with a tooth, a tooth section or the like
10/10/2012CN202488289U Motor slot wedge molding and stamping device
10/10/2012CN202479380U Edge-cutting shifting structure of air-conditioner fin mold
10/10/2012CN202479369U Cutting die and steel die combination mechanism applied to punching machine
10/10/2012CN202479333U Upper die of punching die for capacitor aluminum caps
10/10/2012CN202479332U Shuttle tube punch press automation system
10/10/2012CN202479331U Slant punching mould structure
10/10/2012CN202479330U Laser aiming bus punching machine
10/10/2012CN202479329U Multi-station hydraulic punching machine
10/10/2012CN202479328U Punch selection device with pneumatic control
10/10/2012CN202479327U Semi-automatic blanking mechanism of automobile reinforcing plates
10/10/2012CN202479326U Refrigerator and refrigerator inner tank oil pressure punching equipment
10/10/2012CN202479325U Chamfering device for magnetism insulating plate of transformer tank cover
10/10/2012CN202479324U Appearance processing jig for LED (light-emitting diode) metal base circuit board
10/10/2012CN202479323U Die of impingement plate
10/10/2012CN202479322U Mould for automatically cutting off closed scrap edge and waste materials
10/10/2012CN202479321U Flash-cutting device of automobile steering wheel
10/10/2012CN202479320U Flash trimming device of steering wheel of car
10/10/2012CN202479319U Thin sheet aluminum alloy pore frame blanking molding blanking die
10/10/2012CN202479318U Sprue-removing trimming die of aluminum alloy die-castings
10/10/2012CN202479317U Tooth-punching forming mould of car seat dragging handle tube
10/10/2012CN202479316U Steel floor tile part blanking mould
10/10/2012CN202479315U Light hand-pressing flat steel arc forming cutting machine
10/10/2012CN102725080A Marking method, marking tool, and punch press machine
10/10/2012CN102723821A Process for reducing broken bars of motor die-casting rotor
10/10/2012CN102723447A Aluminum-plastic film of polymer lithium ion battery and shell punching method thereof
10/10/2012CN102716969A Accurate cutting and punching jump-scrap prevention mechanism
10/10/2012CN102716968A Sheet metal punching device
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