Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707)
12/2013
12/18/2013CN203343257U Simply-equipped waste recovery machine
12/18/2013CN203343256U Outer circle punching die of whole-circle-type armature punching sheet of exciter
12/18/2013CN203343255U Oscillating type punching die
12/18/2013CN203343254U Metal box edge-cutting mechanism
12/18/2013CN103447821A Rod element heading mold with transverse hole
12/18/2013CN103447376A Three-dimensional oil-pressure multi-head punching device
12/18/2013CN103447375A Opposite punching type cutting knife base
12/18/2013CN103447374A Progressive die of spring guide plate
12/18/2013CN103447373A Serrated detachable anti-corrosion trimming die
12/18/2013CN103447372A Serrated abrasion-resistant trimming die
12/18/2013CN103447371A Method for manufacturing magnetic-conductance sheet of second-beat type quartz clock movement
12/18/2013CN102366773B Automobile processing sheet and blanking die thereof
12/11/2013CN203330265U Continuous stamping punching die
12/11/2013CN203330239U Punch forming die for planetary grinding disc
12/11/2013CN203330238U Fast automobile roof punching device
12/11/2013CN203330237U Machine shell surface hole punching die
12/11/2013CN203330236U T-tube punching device
12/11/2013CN203330235U Inner side face punching mechanism of stamping die
12/11/2013CN203330234U Die structure for preventing breakage and scrap bouncing in small heat-dissipation hole stamping process
12/11/2013CN203330233U Novel spoke stamping die
12/11/2013CN203330232U Novel perforating device for spoke vent hole
12/11/2013CN203330231U Punching die
12/11/2013CN203330230U Perforating device for spoke shaft hole
12/11/2013CN203330229U Perforating device for spoke ventilation holes
12/11/2013CN203330228U Pairwise-grooving device for oil tank
12/11/2013CN203330227U Device capable of improving precision of punching frame
12/11/2013CN203330226U Secondary scrap cutting off device of trimming die
12/11/2013CN203330225U Collecting pipe notching die with core rod
12/11/2013CN203330224U Side cutting die for steering nut
12/11/2013CN203330223U Overrunning type trimming die structure
12/11/2013CN203330222U Sliding block trimming mold
12/11/2013CN203330221U Blanking die
12/11/2013CN203330220U Inclined-cutting structure of stamping die
12/11/2013CN203330219U Pairwise-piercing die for side wall of round metal framework of car
12/11/2013CN203330218U Double-row high-speed stamping die
12/11/2013CN203330217U Stamping progressive die movable knife edge mechanism
12/11/2013CN203330216U Adjustable type aluminum strip chamfering device
12/11/2013CN103442860A Method and apparatus for cutting substrate
12/11/2013CN103433399A X-direction positioning device for punching automobile U-shaped beam
12/11/2013CN103433383A Flanging gasket punching die
12/11/2013CN103433368A Mechanism for finishing upturning and trimming of outer covering member of automobile in one process
12/11/2013CN103433361A Rotary pulling and stamping mechanism used for stamping
12/11/2013CN103433360A Guiding type small-hole blanking die
12/11/2013CN103433359A Bidirectional floating punching die
12/11/2013CN103433358A Hardware mould special for steel part deep hole punching
12/11/2013CN103433357A Wing surface punching device of automobile U-shaped beam
12/11/2013CN103433356A Double-oil-cylinder hub dead head punching machine
12/11/2013CN103433355A Bucket tooth forge piece punching typewriter
12/11/2013CN103433354A Processing machine of partitioning piece grooves of parallel-flow evaporator
12/11/2013CN103433353A Horizontal trimming mold
12/11/2013CN103433352A Guiding type blanking die
12/11/2013CN103433351A Cutting mechanism for multi-station progressive die of air conditioner heat transfer sheet
12/11/2013CN103433350A Automobile back longitudinal beam end plate forming die
12/11/2013CN103433349A Grooving device of slotting screw plug
12/11/2013CN103433348A Headrest rod manufacturing device and headrest rod manufacturing method thereof
12/11/2013CN102626864B Steel round bar heading-off mechanism for plasma cutting machine
12/11/2013CN102397877B Sheet tape-threading and locating and punching device and method
12/11/2013CN102284597B Male die with fixing device
12/11/2013CN101987338B Punch tool comprising a stamp supported in a floating manner
12/10/2013US8601849 Device cover and method for fabricating the same
12/10/2013CA2557546C Sheet material with bend controlling displacements and method for forming the same
12/05/2013WO2013177667A1 Bulk textured material sheeting
12/05/2013US20130319065 Hot forging press machine
12/04/2013EP2669024A1 Machine tool and method for pushing out a workpiece part
12/04/2013CN203316633U Improved discharged material ejecting structure of blanking die
12/04/2013CN203316615U Cylindrical guide punching machine
12/04/2013CN203316591U Forming die for engine clutch sight opening cover
12/04/2013CN203316570U Precision punching device for cookware
12/04/2013CN203316569U Blanking and punching progressive die for processing lining board
12/04/2013CN203316568U Shaft sleeve side punching multi-hole die
12/04/2013CN203316567U Punching die
12/04/2013CN203316566U Punch press used for automotive spare parts
12/04/2013CN203316565U Tapered wedge mechanism arranged in material pressing core
12/04/2013CN203316564U 柔性冲裁模具 Flexible punching die
12/04/2013CN203316563U Trimming die provided with sliding blocks on four sides
12/04/2013CN203316562U Die for cross shearing machine
12/04/2013CN203316561U Cutting-off die special for shearing angle steel
12/04/2013CN203316560U Angle steel cut-off die
12/04/2013CN203316559U Bar cutting-off die
12/04/2013CN203316558U Blanking die for upper reinforcer blank of automobile front column
12/04/2013CN203316557U Automobile engine compartment front beam blanking die
12/04/2013CN203316556U Stamping die for lower reinforcer of automobile front column
12/04/2013CN203316555U Trimming cutter for trimming die
12/04/2013CN103429364A Hollow component, method of manufacturing thereof and manufacturing device
12/04/2013CN103418722A Processing method of carrying out rotary forging on forge pieces with high precision of truck hub
12/04/2013CN103418704A Automatic feeding device and method of punch press
12/04/2013CN103418673A Punching die
12/04/2013CN103418672A Flip-over type punching die
12/04/2013CN103418671A Workpiece punching die
12/04/2013CN103418670A Small hole blanking die
12/04/2013CN103418669A Compressor hole punching die for base plates of air conditioners
12/04/2013CN103418668A Novel punch punching mechanism
12/04/2013CN103418667A Stepper device matched with die
12/04/2013CN103418666A Doorframe punching die
12/04/2013CN103418665A Hexagonal anti-corrosion trimming die
12/04/2013CN103418664A Hexagonal trimming die
12/04/2013CN103418663A Trimming die
12/04/2013CN103418662A Cold extrusion blanking die for cross shaft blanks
12/04/2013CN103418661A Novel groove cutting device
12/04/2013CN103418660A Die cutting method driving materials through multiple driving devices
1 ... 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ... 128