The Rehmuehle in Merkenbach,1905.Birthplace and first manufacturingfacility of todays Berkenhoff GmbH.Then and today, a source of newideas! >

What good is tradition in a world that constantlychanges? It preserves thebest of the past andcombines it with our pathinto the future ΅ Not because it was easy because it was hard, KarlBerkenhoff founded hiscompany on new ideas. Wire pickling in theKinzenbach facility, 1921.The second manufacturingfacility of today֒sBerkenhoff GmbH. 1889. Foundation, pioneer days, world exhibitions.Cables now connect continents. Restless minds now experience economic upswing.Karl Berkenhoff, the clever wire expert fromGermany, founds a fine wire drawing facilityӓ ,improves the drawing die considerably and at...

bedra > wire solutions for theelectronics industry can befound in crucial places of thetechnology.Special characteristics:High conductivity, thermal and corrosion resistance withwhisker barrier. All this is cost-effective with just-in-timeavailability at your facility. >

Global media flood Ζ more and more bits and bytesare pumped through electronic gadgets andsystems. Miniaturisation trends trigger advances intechnology.High-speed applications for telecommunicationsdominate: ATM or UMTS for high-speedtransmission of multi-media data. Even today֒scar has turned into a rolling micro-chip. Massive application of electronics replaces mechanics! Moreand more network systems for aircraft, car, railwaysupply systems, steering systems, moving gear regulators and precise motor management. 99 littleservomotors buzz around an internal combustionengine! This calls for connections:...

Welding without interruptionthanks to bedra The automotive industrydemands sophisticated assemblymethods and filler metals.Shining examples in the bedra > drums.Advantages:Ε2 weeks of uninterruptedwelding run-off saveshandling costsprecise positioningՕminor torsionno spatter formation > ծ portfolio are alloys for:LASER BEAM WELDINGand PROTECTIVE GASWELDING/BRAZING(MIG, MAG, TIG)e.g. covered seams, short seamsor seal welds for the shell or theinterior.Typical bedra > applications are:Ε A-column B-columnՕ roof seams >

On ship, rails or wheels Ζ on water, on land and inthe air: weld joints secure the backbone of theindustrial society. bedra pl e aut omotiv e indus tr y: COMAS > and bedra > ή CuSi3Mn alloys, shipped in drums, offer more than14 days uninterrupted robot welding and thereforeminimise handling.Exam > is involved with fillermetals for sophisticated welding applications. Intransportation engineering, in plant engineering andin civil engineering. Be it car, airplane, railbuilding, shipbuilding, bicycle, motorcycle, agriculturalequipment or building machinery, offshore oronshore, mining, turbine, mould,...

This is Mary, pretty as a picture.Her hair is long and curly.Hair diameter: approx. 0,06 mm (.0024)This is a cross section of MICROCUT > Ӯ .The composite electrode from bedra > for EDM applications in electronicsand micro-mechanics.Wire diameter: 0,03 mm (.0012Γ),therefore only half a hair widthӔ incomparison to Marys hair. 0,06 mm 0,03 mm >

As early as 1770, scientist Priestley (discoverer of oxygen) haddemonstrated the principle: electrical discharges against aconductive material has cutting abilities.However ֖ that was not the igniting spark. Only in 1943, twoRussian scientists tamed the effect, cultivated the technology and suggested capacitor dischargesӔ as machining process formetallic materials. Eureka! The foundations for the sparkerosion were laid: Metal cutting with controlled discharges, Electrical Discharge MachiningӔ, in short EDM.In 1969 the market opened up for spark erosion cutting ofelectrically conductive workpieces...

Masterpiece!Wire EDMed collapsible corefor an injection mould. Thefabrication of this masterpieceto the optimum level ofprecision was possible only byusing spark erosion technology.Cut with COBRA CUT frombedra ή . Thickness of workpieceabout 340 mm. Surrounded by an insulating dielectric fluid, the electricallycharged wire electrode never touches the workpiece. Instead,high-energy, plasma-hot sparks over 18.000C, vaporize thematerial in front of it, cutting precise shapes in conductivematerials, regardless of hardness. The current is pulsed, with some generators switching on and off in units...

Spark erosion is the uncontested key technology in theproduction of sophisticated moulding and stamping tools forproduction of metal and plastic parts for all industries.Additionally, there is the direct machining of complex precisioncomponents. Geometric variety and accuracy are the decisive erosion advantages! Unconventional solutions are realised.Freeform surfaces with extreme tapers, small holes, near-sharp corners and fine finishes. Everyone profits from spark erosion: whether we look at our watch, use an electric shaver,board a car, train or airplane, make a phone call, play or sit onstacking...

From wire EDMs birth in 1969, bedra > Ү actively participated inelectrode evolution. In cooperation with the Research andDevelopment Departments of renowned manufacturers of EDMmachines and scientific institutions, bedra > Ζ like no otherproducer, developed and tested permanent new electrodes andsuccessfully put them on the market. Today, bedra > is theuncontested innovations and technology leader for coated wireelectrodes and the most important electrodes producerworldwide: because process know-how, dependable supplies,solution portfolio and service packages make sense. Patents and product innovations...

This is bedraΒs MICROCUT > , perfectlyspooled. Thanks to the biconic spool,MICROCUT > ή runs on all EDM-machines with fine wire option andprovides ֵm-accurate cutting resultsin the micro field.This is a lead frame with 176 tongues.The precision tool for this lead framewas cut with MICROCUT > , the high-tensile brass coated composite wirewith a highly conductive surface. Tensile strength 2000 N/mm > 2 . >