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)
09/2012
09/19/2012CN102672031A Novel dual-purpose stamping punch mechanism
09/19/2012CN102672030A Die for trimming automobile engine cup insert
09/19/2012CN102672029A Processing system of blanking cutting off automatically for stamping parts
09/19/2012CN102672028A Stamping system for cut materials
09/19/2012CN102672027A Large board blanking system for hydraulic press
09/18/2012CA2667269C Piercing method and piercing apparatus using hydroforming and hydroformed part and structure
09/13/2012WO2012119697A1 Method for producing slots in a tube wall and slotting tool
09/13/2012US20120227458 Formation Tool for a Punching Machine
09/13/2012DE102010022783B4 Stift zum Fangen und Positionieren von zu stanzenden und/oder zu biegendem Bandmaterial Pin for catching and positioning to be punched and / or biegendem strip material
09/12/2012CN202427809U Automatic punching device for chain sleeve
09/12/2012CN202427808U Piercing punch device for refrigerator intermediate separation plate
09/12/2012CN202427807U Stamping die for quickly producing nut strips quickly
09/12/2012CN202427806U Tool for punching hole for rear-view camera of car
09/12/2012CN202427805U Punching device
09/12/2012CN202427804U Mould for punching keyways
09/12/2012CN202427803U Punching tool for automobile guide rail
09/12/2012CN202427802U Die for machining left and right symmetric holes of U-shaped part
09/12/2012CN202427801U Feather edge product producing die beneficial to automatic production and capable of eliminating abnormal cut
09/12/2012CN202427800U Punching mould of puncher pin with high service life and low noises
09/12/2012CN202427799U Stable stamping die
09/12/2012CN202427798U Stamping die preventing waste materials from floating up
09/12/2012CN202427797U Punching mechanism with high planeness
09/12/2012CN202427796U Product punching die for various appearances
09/12/2012CN202427795U Mould for blanking side face of product
09/12/2012CN202427794U Simultaneous trimming mechanism of scrap cutter on mould
09/12/2012CN102665959A Cutting device
09/12/2012CN102665958A Apparatus for retaining a package of laminations of an electromagnetic core in a device for the production thereof
09/12/2012CN102658324A Vertical steel tube die device
09/12/2012CN102658323A Sheet positioning device of uncoiling line and working method of sheet positioning device
09/12/2012CN102658322A Stamping and trimming device
09/12/2012CN102172709B Pneumatic connection rod type rotary cutting mould
09/12/2012CN101439467B Metal bar section roll milling and processing equipment, and network control system thereof
09/11/2012CA2505095C Method of forming hydroformed member with opening
09/06/2012DE102011013209A1 Herstellungsverfahren für Schlitze und Schlitzwerkzeug Manufacturing processes for slots and slot tool
09/06/2012DE102011013127A1 Method for introducing opening into workpiece, involves contouring opening of workpiece by counter tool that cooperates with machining tool, where counter tool is provided with recess
09/06/2012DE102011012907A1 Method for producing stripping elements from sheet-metal strips or prefabricated steel lines, involves punching outer regions of sheet-metal strips or steel lines to produce stripping elements that are mounted over magazine
09/05/2012EP2493640A1 Apparatus for retaining a package of laminations of an electromagnetic core in a device for the production thereof
09/05/2012CN202411202U Circular tube fixture
09/05/2012CN202411201U Integrated mold of sheet numerical control punching machine
09/05/2012CN202411200U Composite hammer head die for perforated pierced billet
09/05/2012CN202411199U Punching die head for bus connection plate
09/05/2012CN202411198U Automatic punching equipment for producing screw ground piles
09/05/2012CN202411197U Die head drive mechanism of punching machine
09/05/2012CN202411196U Strip material type punching and placing intermediate plate structure of shaver
09/05/2012CN202411195U Aluminum alloy pressure casting trimming die with smooth incision
09/05/2012CN202411194U Operation panel of stamping die
09/05/2012CN202411193U Pendulum shearing die
09/05/2012CN202411192U Universal straight side cutting die for spring seat side plate of automobile
09/05/2012CN202411191U Punching die
09/05/2012CN202411190U Host machine quick-change structure
09/05/2012CN202411189U Section bar tracking and cutting device
09/05/2012CN202411188U Punching device of flat pipe feeding device
09/05/2012CN202411187U Lead-acid storage battery grid punch tool
09/05/2012CN102655962A Punching manufacturing method for workpiece
09/05/2012CN102652973A Material cutting stamping die
09/05/2012CN102139309B Numerical control punching machine
09/05/2012CN102133597B 45-degree corner cutting and punching mould for doorframe semi-finished product
09/05/2012CN102114647B Special machine for manually punching radar and license holes of automotive interior part and bumper
08/2012
08/30/2012WO2012115008A1 Operation method for multi-tasking machine, and multi-tasking machine
08/30/2012WO2012036195A9 Punching metal manufacturing method and device
08/30/2012US20120219817 Perforated aluminium foil and manufacturing method thereof
08/29/2012EP2492040A1 Tap die
08/29/2012EP2492039A1 Tap die
08/29/2012CN202399529U Slider transverse moving structure
08/29/2012CN202398700U Profile punching die
08/29/2012CN202398699U Hydraulic punching machine for profile steel
08/29/2012CN202398698U Tapered roller bearing cage punching device
08/29/2012CN202398697U Thin wall pipe fitting punching machine
08/29/2012CN202398696U Punching device
08/29/2012CN202398695U Quick-positioning punching device for symmetrical irregular hole
08/29/2012CN202398694U Single edge cutting mould
08/29/2012CN202398693U Tooth punching die of tooth screws
08/29/2012CN202398692U Beading repairing device
08/29/2012CN102649143A Continuous multi-azimuth punching device for section bars
08/29/2012CN101947599B Method and device for double eccentrically punching
08/29/2012CN101537462B Tension device and heat exchange fin manufacturing machine
08/28/2012US8250898 Brake disk producing method and brake disk
08/22/2012CN202388558U Punching machine
08/22/2012CN202387875U Blowing layout structure for metal punching die capable of punching upwards
08/22/2012CN202387871U Oblique wedge material support mechanism of uncoiling blanking die
08/22/2012CN202387825U Mould device capable of achieving secondary guiding for miniature hole punching
08/22/2012CN202387824U Portable punch machine
08/22/2012CN202387823U Riveting machine for ventral side of longitudinal member
08/22/2012CN202387822U Oil anti-leakage device for slide block part on high-speed notching press
08/22/2012CN202387821U Grooving punch for thin-walled pipe
08/22/2012CN202387820U Glass processing guide rail mechanism
08/22/2012CN202387819U Punching device for glass guide rail
08/22/2012CN202387818U Pneumatic punching runner scrap platform
08/22/2012CN202387817U Full-automatic unequal-length soft connector blanking punching shear system
08/22/2012CN202387816U Special matching pneumatic device of aluminum alloy cutting punch
08/22/2012CN102642122A Cutting process of rail clip
08/22/2012CN102641949A Method for processing exhaust pipe flange and special die thereof
08/22/2012CN102641945A Flat hole punching mould of round pin
08/22/2012CN102641944A Punching device for lateral punched hole of manufactured piece
08/22/2012CN102641943A Counter punching mechanism for processing both sides of square tube
08/22/2012CN102641942A Automatic positioning and punching device for shell of solar water tank
08/22/2012CN102641941A Automatic stop counting, speed adjusting and safety protecting device of punch
08/22/2012CN102641940A Method for forming deep blind hole of forging piece
08/22/2012CN102641939A Hole puncher
08/22/2012CN102641938A Stamping die for stamping parts
1 ... 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 ... 128