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)
10/2012
10/10/2012CN102716967A Laser cutting part reference determination method
10/10/2012CN102716966A Trimming die capable of being quickly clamped
10/10/2012CN102179441B Trimming mould and process for automobile plate spring support
10/10/2012CN102101145B One-step molding method of split foot with grounding hole
10/10/2012CN101844174B Press machine
10/10/2012CN101203338B Tool fastening device for a v-belt drive
10/04/2012US20120248811 Magnesium alloy sheet metal panel with abrasivley processed edge region for enhanced durability
10/04/2012US20120247169 Method for Manufacturing A Quick Release Axle Assembly that has Greater Strength and Lighter Weight
10/04/2012DE112009005483T5 Elemente eines Riemens für ein stufenlos einstellbares Fahrzeuggetriebe und Verfahren des Herstellens der Elemente Elements of a belt for a continuously variable vehicle transmission, and method of fabricating the elements
10/03/2012CN202461389U Oil pressure machine and hydraulic system thereof
10/03/2012CN202461356U Horizontal lateral punching scrap removing device
10/03/2012CN202461318U Punching compound die with four bent corners
10/03/2012CN202461285U Die for car B pillar and C pillar outer reinforced plate part
10/03/2012CN202461284U Die for external reinforcement plate part of column A of automobile
10/03/2012CN202461271U Brake flat hole pin temperature die device
10/03/2012CN202461270U Battery case perforating mold
10/03/2012CN202461269U Punching die
10/03/2012CN202461268U Aluminum material punching gun
10/03/2012CN202461267U Mould
10/03/2012CN202461266U Die head of punching machine
10/03/2012CN202461265U Die-cutting hydraulic punch pliers for irregularly-shaped hole of automobile glass sliding chute type part
10/03/2012CN202461264U Fire Qu angle steel punching device
10/03/2012CN202461263U Closed-type edge-trimming die
10/03/2012CN202461262U Die for machining fan radiation frame
10/03/2012CN202461261U Die forging trimming die
10/03/2012CN202461260U Cutting mold
10/03/2012CN202461259U Circle-making thrust machine die
10/03/2012CN202461258U Continuous drawing die
10/03/2012CN202461257U Stamping die Male die punch of four-side pins of high-precision integrated circuit
10/03/2012CN202461256U Plate spring single edge cutting mold
10/03/2012CN202461255U Punching shear mould used for flexible connection parts provided with heat dissipation grooves of unequal lengths
10/03/2012CN202461254U Die for punching and shearing flexible connector with holes and length discrepancy
10/03/2012CN202461253U Wafer blanking production facility
10/03/2012CN102714174A Punch singulation system and method
10/03/2012CN102712062A Method for producing a one-piece corner connection
10/03/2012CN102699222A Grease gun gland punching fixture and locating mode thereof
10/03/2012CN102699185A Punching die for base adapter piece
10/03/2012CN102699184A Automatic punching equipment for producing screw ground piles
10/03/2012CN102699183A Power line clamp punching machine
10/03/2012CN102699182A Adjustable accurate positioning and punching device used for electric core of lithium-ion battery
10/03/2012CN102699181A Two-sided trimming mould of thin-walled cylinder-shaped piece
10/03/2012CN102699180A Sheet metal component punching mould
10/03/2012CN102699179A Fixed guide plate type blanking die
10/03/2012CN102699178A Top cropping mould for car decorative part with strip-shaped abnormal section
10/03/2012CN102699177A Cutting die processing device and cutting die automatic processing technology
10/03/2012CN101992394B Improved special anti-punching machine
10/03/2012CN101869943B Punching device for drawing die and plate positioning method
10/02/2012US8276426 Laminated magnetic cores
09/2012
09/27/2012WO2012127672A1 Method and apparatus for cutting substrate
09/26/2012CN202447550U Positioning mold used during punching of aluminum frame
09/26/2012CN202447506U Male die of forming composite die for lock hole of vehicle door inner plate
09/26/2012CN202447495U Punching assembly for CH hole
09/26/2012CN202447494U Automobile fender forming die
09/26/2012CN202447493U Multifunctional porous pipe processing cold punching bottom die
09/26/2012CN202447492U Inclined plane punching die
09/26/2012CN202447491U Gap hole support plate stamping die for two-for-one twister
09/26/2012CN202447490U Device for punching flange of metallic barrel
09/26/2012CN202447489U Novel puncher
09/26/2012CN202447488U Pneumatic punching machine
09/26/2012CN202447487U Pneumatic punching device
09/26/2012CN202447486U Trimming cutter block switching mechanism for side-body-panel trimming die of automobile panel
09/26/2012CN202447485U Trimming mold for automobile covering side panel
09/26/2012CN202447484U Floating cavity die
09/26/2012CN202447483U Stamping die
09/26/2012CN202447482U Waste discharging mechanism of plate type discharging die
09/26/2012CN202447481U Lateral cutting-off die
09/26/2012CN202447480U No-lapping blanking die for positioning block of ballastless track board
09/26/2012CN202447479U Device for cutting stub bar of cantilever vibrator
09/26/2012CN202447478U Punching mould capable of removing scrap edge of electric hot tray of electric rice cooker
09/26/2012CN202447477U Tooth extraction device for size setting and tooth cleaning of metal zipper
09/26/2012CN102692070A Connection structure for air-conditioning mounting plate and manufacturing method therefor
09/26/2012CN102689150A Automatic production equipment for discharging, notching and necking of steel pipe
09/26/2012CN102689149A Continuous press forging precise forming process of automobile retaining frame part
09/26/2012CN102688933A Trimming die and preparation method thereof
09/26/2012CN102688932A Single-groove punching die with general die frame and matched die pins
09/26/2012CN102688931A Die for cutting off round steel
09/26/2012CN102688930A Novel portable two-in-one devicewith holding and discharging material functions
09/26/2012CN102688929A Method for determining pressure center of trimming and punching shear die for tensile piece
09/25/2012US8272244 Stamping apparatus with feed device
09/20/2012WO2012124735A1 Hollow component, method of manufacturing thereof and manufacturing device
09/19/2012EP2498929A1 Multiple punch and die assembly
09/19/2012CN202438612U Flanging and once molding punch without scrap generation
09/19/2012CN202438596U Fine punch die for constant velocity universal joint retainer window
09/19/2012CN202438595U Telescopic cutting die waste material hopper
09/19/2012CN202438594U Punching combined multi-purpose die for precise-type stainless steel tube
09/19/2012CN202438593U Hydraulic control system for controlling punch press punching process
09/19/2012CN202438592U Multi-station rotary punching machine
09/19/2012CN202438591U Punching device for roller shutter door
09/19/2012CN202438590U Die punching device for oil baffle plate of transformer coil
09/19/2012CN202438589U Rotary-cut edge trimming machine
09/19/2012CN202438588U Punch
09/19/2012CN202435877U Impact-briquetting juxtaposition-composite-type non-welding-seam cylinder for manufacturing nutrition-pot-making device
09/19/2012CN102686905A Element for belt for stepless transmission, and method of manufacturing same
09/19/2012CN102683488A Welding belt cutting device
09/19/2012CN102672417A Improvement on end cover nut stamping technique of mechanical steering gear
09/19/2012CN102672037A Fragment-free metal arched rupture disk with crossed slot, production device and manufacturing method thereof
09/19/2012CN102672035A Punching device
09/19/2012CN102672034A Die for fine punching of connecting bracket and fine punching method
09/19/2012CN102672033A Multiple-hole piercing device for arc-shaped corrugated plate
09/19/2012CN102672032A Structure for novel steel tube mould frame
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