Patents
Sitemap › B21 - Mechanical metal-working without essentially removing material; Punching metal › B21C - Manufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling; Auxiliary operations used in connection with metal-working without essentially removing material › B21C 3 - Profiling tools for metal drawing; Combinations of dies and mandrels for metal drawing
Patents for B21C 3 - Profiling tools for metal drawing; Combinations of dies and mandrels for metal drawing (1,992)
03/1989
03/22/1989CN2034482U Extrusion type cold draw moulding tool for steel thread dies
02/1989
02/21/1989US4805435 Method for producing aluminum drums having highly smooth surface
01/1989
01/10/1989US4797326 Supported polycrystalline compacts
01/05/1989DE3819054A1 Hole geometry for drawing dies
12/1988
12/28/1988CA1247501A Methods and apparatus for drawing wire
12/21/1988EP0295919A2 Cold drawing technique and apparatus for forming internally grooved tubes
12/13/1988US4790165 Feed-through element for a vacuum apparatus
12/06/1988US4788841 Method and apparatus for making step wall tubing
11/1988
11/30/1988EP0292697A2 wire drawing machine
11/09/1988CN88103217A 拔丝机 Wire drawing machine
11/03/1988DE3712542A1 Method for shaping the internal surfaces of tubes
09/1988
09/28/1988CN87215795U Quincunx hard-drawn module
09/22/1988DE3707889A1 Apparatus for pulling long stock of circular cross-section through a die
08/1988
08/23/1988CA1240955A1 Nib for a drawing die and method of making the same
08/18/1988DE3741042C1 Tool for drawing, in particular, tubes
08/03/1988EP0276958A2 Method of producing aluminum drums having highly smooth surfaces
07/1988
07/06/1988CN86108742A Technique of drawing die insert welding with natural diamond
07/05/1988US4754633 Methods and apparatus for drawing wire
06/1988
06/22/1988EP0272081A2 High hardness composite sintered compact
06/22/1988CN87215129U Hollow conic core bar with double-head
06/07/1988US4748835 Plug drawing of tubes and other hollow items
05/1988
05/24/1988US4745787 Plug drawing
05/04/1988EP0265992A1 Feed-through element for application in a vacuum apparatus; apparatus provided with such feed-through elements as well as wire material formed in such an apparatus
04/1988
04/26/1988US4739640 Apparatus for cooling and/or drying or cleaning elongate material
02/1988
02/18/1988DE3627829A1 Apparatus for the cold-drawing of tubes
02/18/1988DE3627828A1 Method and apparatus for the cold-drawing of tubes
02/10/1988EP0255590A2 Drawing device for tubes with a cambered wall at the end
02/02/1988US4722213 Method of cold drawing a metal tube
12/1987
12/17/1987DE3619444A1 Method for the reduction of drawing compound residues in tubes
12/15/1987US4712407 Apparatus for working surface of metal pipe
11/1987
11/03/1987US4703672 Method of manufacturing a drawing die
10/1987
10/06/1987US4697447 Plug drawing of tubes and other hollow items
09/1987
09/02/1987EP0234211A1 Method and device for drawing wire
08/1987
08/20/1987DE3604936A1 Die block and a method for its production
08/05/1987CN86108847A Supported polycrystalline compacts
07/1987
07/29/1987EP0230233A2 Supported polycrystalline compacts
07/16/1987WO1987004092A1 A method for primarily extending the useful lifespan of ceramic tools, and an arrangement for carrying out the method
05/1987
05/20/1987CN86100348A Cold-drawing technology of automatic pressurizing and lubricating for metal tubes
05/19/1987US4666467 High-strength metal working tool made of a zirconia-type sintered material
04/1987
04/07/1987US4655065 Plug drawing of tubes and other hollow items
02/1987
02/24/1987US4644769 Wire drawing method and apparatus
02/11/1987CN86101467A Mfg. of oriening-helix seamless steel-pipe used for rocket guns
12/1986
12/31/1986CN85203642U Motility core-head of single head and tail cone for disk drawing pipe
12/30/1986EP0206421A1 Method of manufacturing a drawing die
11/1986
11/18/1986US4622840 Method for drawing telescoping tubes for torque transmission
11/11/1986US4622022 Telescoping tubes for torque transmission
10/1986
10/29/1986EP0198942A1 Method for manufacturing consumable welding spacer and product produced thereby
10/15/1986EP0197790A2 Wire drawing die
09/1986
09/24/1986CN85204443U Direct cooling metal reducing die
07/1986
07/30/1986EP0189294A2 Improvements in or relating to the plug drawing of tubes and other hollow items
07/30/1986EP0189293A2 Improvements in or relating to the plug drawing of tubes and other hollow items
04/1986
04/01/1986US4578985 Die with solid particle removal groove
03/1986
03/26/1986EP0175497A2 Die for tube drawing
02/1986
02/11/1986US4569217 Apparatus for converting rod stock or wire rod into wire
02/04/1986US4567793 Method for making a nib for a drawing die
02/04/1986US4567744 Method and apparatus for forming long cylindrical metal products
10/1985
10/29/1985US4549421 Method and apparatus for reducing the section of elongated components
10/22/1985CA1195655A1 Method for drawing wire
10/08/1985US4545229 Method for manufacturing microwire and device for effecting same
09/1985
09/24/1985CA1193851A1 Fluidized bed lubricant container
08/1985
08/13/1985US4534934 Axial sweep-through process for preparing diamond wire die compacts
08/13/1985US4534199 Method and apparatus for produced stepped tubes
07/1985
07/17/1985EP0148514A2 Method and apparatus for cold drawing and imparting curvature to metal tubes
07/09/1985CA1190187A1 Wire drawing die and method of making the same
05/1985
05/08/1985EP0140679A2 Improved wire drawing method and apparatus
05/07/1985US4515000 Method for manufacturing consumable welding spacer
01/1985
01/02/1985CA1180208A Monolith extrusion die construction method
11/1984
11/20/1984US4483892 Wear resistant annular insert and process for making same
11/06/1984US4481016 Method of making tool inserts and drill bits
10/1984
10/31/1984EP0123532A2 Method and apparatus for reducing the section of elongated components
09/1984
09/04/1984US4468947 A silicon nitride or carbide ceramic bodt
08/1984
08/14/1984US4464922 Wire drawing method and apparatus
07/1984
07/31/1984US4462242 Method for wire drawing
06/1984
06/19/1984US4454657 Aperture setting device
05/1984
05/15/1984US4448052 Hydrostatic assist during rolling of cast metal
05/01/1984US4445351 Fluidized bed lubricant container
04/1984
04/17/1984US4442734 Method for mounting hard wear-resistant inserts
04/17/1984US4442689 Lubricating die holder
04/03/1984US4440573 Method for producing diamond compact
03/1984
03/28/1984EP0104055A2 Method & apparatus for producing stepped tubes
03/20/1984CA1163770A1 High pressure process for preparing diamond wire die compacts
02/1984
02/22/1984EP0101096A1 Core and oil-well drill bits
02/01/1984EP0099874A1 Drawing die
11/1983
11/23/1983EP0094740A1 Apparatus for cooling, drying and cleaning elongate material
09/1983
09/20/1983US4404827 Method and apparatus for drawing wire
09/13/1983US4403491 Apparatus for forming a split tube
07/1983
07/12/1983US4392397 Method of producing a drawing die
05/1983
05/31/1983CA1147293A1 Device for drawing wire, rod, pipe or the like
05/17/1983US4383429 Apparatus for forming a point at the end of a metal tube by means of a drawing operation
04/1983
04/05/1983US4378690 Diamond drawing die and setting combination
03/1983
03/22/1983CA1143189A1 Method and apparatus for cold finishing of metals
02/1983
02/22/1983US4374900 Composite diamond compact for a wire drawing die and a process for the production of the same
02/15/1983US4373366 Machine for forming spiral grooves in metal pipe inner surface
01/1983
01/25/1983US4370149 Tungsten or molybdenum-tungsten carbide, iron group metal, grinding, sintering
01/25/1983CA1140237A1 Roller-dies-processing method and apparatus
01/25/1983CA1140080A1 Wire drawing method and apparatus
01/19/1983EP0070000A1 Method and apparatus for drawing wire
01/18/1983CA1139647A1 Apparatus for forming a point at the end of a metal tube by means of a drawing operation
01/11/1983CA1139111A1 Supported diamond
12/1982
12/28/1982US4365502 Wire drawing die and method of making the same
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