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Worldwide Competence In Quality und Technology Custom Turned Part Work Dowels and Shafts Standard Program Cold Formed Dowels and Shafts Other Parts

Worldwide Competence In Quality und Technology...ISO 8744 ISO 8744 DIN 1472 ISO 8745 ISO 8745 DIN 1473 ISO 8740 ISO 8740 DIN 1474 ISO 8741 ISO 8741 DIN 1475 ISO 8742 ISO 8743 DIN 1476

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    Worldwide CompetenceIn Quality und Technology

    Custom Turned Part Work

    Dowels andShafts

    StandardProgram

    Cold FormedDowels and Shafts

    Other Parts

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    DEMA

    Standard Program

    The standard programcontains a group of Norm-parts for power trans-missions and fasteningtechniques:

    Taper pins, Dowel pins,Grooved pins, grooveddrive studs, Set-Collars,Slot Nuts, Screw Nuts forSlot Nuts, Parallel keys/Suspension keys,Taper keys/Gib keys,Hollow Wedge/ Gib HollowWedge, Woodruff Keys

    Page 4 - 5

    Dowels and Shafts

    From 0.5 to 40 mm Ø andlength of 2 up to 200 mmfor various applications as:

    Electric Motors,Transmissions, planetarygears, fans, printers, andpumps etc.

    Page 6 - 7

    We are an internationallyacting company. DEMAspecialises in the manu-facturing of certainstandard parts and alsoin the production of aparticular group offastener elements, partsand groups of compo-nents according tocustomer drawings for theautomotive industry,aeronautical industry andthe mechanicalengineering sector.

    Our core competencederives from our orienta-tion of the companytowards the TQM-approach and from themixture of our potentialsand capabilities inengineering and ourproduction technologies.This enables us to providea technically efficient andeconomically acceptableproduct which has beenproduced by an optimallyintegrated fabrication.

    We are global specialistsfor components andengineering solutions.

    Cold Formed Dowelsand Shafts

    From 3 to 18 mm Ø andin lengths of 10 to 120 mm.

    They do not differ muchfrom the turned workpieces. According to thedesired application, theparts will be hardened &ground or unhardenedand if necessary speciallytreated. Parts can bedelivered drilled, ornotched, or with spiral groo-ves or air release flats.We have both centrelessand plunge grindingfacilities.

    Page 8 - 9

    Custom Turned Part Work

    We do turning and grindingwith conventional machinesfrom diameter 0.5 to 20 mm.Our CNC machines canturn and mill from bars upto 60 mm.

    By employing a newgeneration of turningcentres an All-in-onetreatment is made possible.

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    Our Visions

    We are the favouredbusiness partners forcustomers from the manu-facturing industry and forindustrial dealers who wantto profit from the addedvalue of a proactive manu-facturer. This is trueespecially for our ability toprovide solutions using ourspecial fastener productiontechnology or parts/assembly units manufac-tured according to our owndrawings.

    World Wide Competencein Quality and TechnologyAt the heart of our creativeaction is the wish tostrengthen the competitive-ness of our customer, byour technical andcommercial support.

    Our solutions serve tooptimise the constructionas well as the assemblyprocess and thereforereduce cost.

    Quality is our top-priority.Our company is striving tosolve everyday problemsby strategic thinking andbacking up the long timesafety of our enterprise.

    The creative developmentadds to the re-enforcementof our established activitiesand the market. Thesafeguarding of anappropriate growth asmeans for stayingcompetitive belongs tothese activities as well asspecific acquisition.

    ObjectivesIn General:1. We want to help each

    other2. We want to act

    responsibly towards theworld around us

    Especially:1. We want satisfied

    customers by producingfaultless products and good performance.

    2. We want to be the market leader in our sector by avoiding mistakes and by ensuring permanent improvement in all areasof the enterprise.

    3. We want lasting economic success by producing quality.

    4. We want suppliers that are our partners.

    5. We want content employees who are aware of our quality requirements.

    Quality and EnvironmentManagement System

    We are certified:• ISO/TS 16494:2009• ISO 9001:2008• DIN EN ISO 14001:2004

    Other Parts

    The grounding for thequality of work we deliveris our material and semi-finished parts receivinginspection.We produce parts forassembly technique asstandard program or ascustomised parts.Milled parts/laser-cut partscomplete our program.The variety of possibilitiesis endless.

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    A B

    4

    Standard Program

    Norm

    DIN 1ISO 2339

    DIN 7ISO 2338SMS 2374

    DIN 268/271

    DIN 508*ISO 299

    DIN 705

    DIN 1444-ADIN 1444-B

    DIN 1469

    DIN 1470ISO 8739

    DIN 1471ISO 8744ISO 8744

    DIN 1472ISO 8745ISO 8745

    DIN 1473ISO 8740ISO 8740

    DIN 1474ISO 8741ISO 8741

    DIN 1475ISO 8742ISO 8743

    DIN 1476ISO 8746ISO 8746

    DIN 1477ISO 8747ISO 8747

    DIN 1481ISO 8752

    DIN 6325ISO 8734SMS 2375

    Product

    Taper Pins

    Cylindrical/Parallel Pins

    Tangent Keys

    T-Nuts

    Set-Collars Bright

    Bolt with head

    Grooved Pinslength parallel groovewith annular ring

    Grooved PinsFull length parallel,pilot end

    Grooved PinsFull length tapergroove

    Grooved PinsHalf length tapergroove

    Grooved PinsFull length parallelgroove

    Grooved Pinslength reverse taper

    Grooved Pins1/3 length centregrooved

    Grooved Pinswith round head

    Grooved Pinswith flat/csk head

    slotted type springtension pin

    Cylindrical/ParallelPins

    Steel

    St

    St

    St

    8, 10

    St

    St

    St

    St

    St

    St

    St

    St

    St

    St

    St

    100Cr6

    Coating

    Gal/Zn

    Gal/Zn

    Gal/Zn

    Gal/Zn

    Gal/Zn

    Gal/Zn

    Gal/Zn

    Gal/Zn

    Gal/Zn

    Gal/Zn

    Gal/Zn

    Gal/Zn

    Gal/Zn

    StainlessSteel

    1.4305

    1.43051.4571

    1.4571

    1.4571

    1.4305

    1.40341.4305

    1.4305

    1.4305

    1.4305

    1.4305

    1.4305

    1.4305

    1.4305

    1.4303

    1.4303

    1.4310

    1.40341.43051.4571

    Brass, Cu,Al, Ti, Bz

    Brass

    Al

    *also long form, Rhombus-nuts, special T-nuts and slugs

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    Norm

    ISO 8734

    DIN 6880

    DIN 6881

    DIN 6882**

    DIN 6883ISO 2492

    DIN 6885ISO 2491SMS 2306

    DIN 6886ISO 2491

    DIN 6887ISO 2492

    DIN 6888ISO 3912SMS 11

    DIN 7977ISO 8737

    DIN 7978ISO 8736

    DIN 7979DISO 8733ISO 8735

    DIN 15058

    DIN 28134

    Product

    Bright Key-Steel

    Taper Keys

    Half-round bar

    Taper Keys

    Parallel Keys

    Taper Keys/Wedges

    Gib-Head Keys

    Woodruff Keys

    Taper Pins externalthreaded end

    Taper Pinswith internal thread

    Cylindrical Pinswith internal thread

    Axle Holders

    Suspension Keys

    Steel

    100Cr6

    C45K16MnCr5

    C45K

    C45K

    C45K

    C45K16MnCr5

    C45K

    C45K

    C45K

    St

    St

    100Cr6

    St

    C45K

    Coating

    Gal/Zn

    Gal/Zn

    Gal/Zn

    Gal/Zn

    Gal/Zn

    Gal/Zn

    Gal/Zn

    Gal/Zn

    Gal/Zn

    Gal/Zn

    StainlessSteel

    1.40341.43051.4571

    1.40571.4571

    1.4571

    1.4571

    1.40571.44621.4571

    1.4571

    1.4571

    1.40571.43011.4571

    1.4305

    1.4305

    1.4305

    1.4571

    Brass, Cu,Al, Ti, Bz

    BzBrass

    ** DIN has been withdrawn, but is necessary for Woodruff keys DIN 6888 Abbreviations:St = Steel, all commonmaterials available

    Gal/Zn = galvaniczinc plated, allcommon surfacefinishes can beprovided

    Special materialavailable on request

    Al =AluminiumBrass =BrassBz =BronzeCu =CopperTi =Titanium

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    Dowels and Shafts

    Dowels and shafts can be dividedinto two fields at DEMA:1. Dowels and shafts produced by

    turning and grinding technique,description on Page 6 and 7.

    2. Cold formed Dowels and shafts,description on page 8 and 9.

    These are parts which are producedaccording special customerrequirements and their drawings.

    Our range of performance:Diameter: 0.5 – 40 mmLength: 2 - 200 mmTolerance fieldfor Diameter: up to 0.003 mmDepth ofroughness: up to Ra 0.1

    Our machines: Ring-turning machines Bar turning machines CNC-turning machines Longitudinal turning machines Transfer machines Centreless cylindrical grinding

    machines Plunge grinders Barrelling machines

    Additional Quality Measures:If required we can do the followingautomatic check procedures:100 % Check of diameterdown to 3 �m100 % Check of hardnessbelow 4HRC100 % Crack detection from depth ofcrack � 0.05 mm100 % Check of length < 0.1mm

    Heat treatment: Quench and temper Case harden Carbonitride Nitrocarburization Vacuum hardening

    Corrosion protection:Depending on the purpose, parts(unless they are made from stainlessmaterial) will be delivered with agalvanic coating or with an adequatecorrosion protection.

    Material:Standard materials are:

    Case hardened steel Heat-treated steel Rolled steel Machining steel Stainless steel Mild steel Non-ferrous metals such as, Al,

    Brass, and Alloys etc.

    We can also provide other materialson customer request.

    Photo: Dowels and shafts producedby turning and grinding techniqueon standard machines, transfer andCNC-machines, from Standard-,Transfer- and CNC-Machines,centreless ground or plunge-ground.

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    Cold Formed Dowels and Shafts

    Dowels and shafts can be dividedinto two fields at DEMA:1. Dowels and shafts produced by

    turning and grinding technique, description on Page 6 and 7.2. Cold formed Dowels and shafts,

    description on Page 8 and 9.

    These are parts which are producedaccording special customerrequirements. These requirementsare laid down on a drawing and weproduce accordingly.

    These are the advantages of coldformed dowels and shafts:

    Non-cutting manufacturing Free choice of material Parts are free from burs and better

    suited for assembly Cost advantages Environment friendly production

    Our Production Range:

    Machines used:Cold forming machinesPlunge-grinding machinesCenterless cylindrical grinding machinesBarrelling/tumbling machines

    Additional Quality Measures:If required we can do the followingautomatic check procedures:100 % Check of diameterdown to 3 �m100 % Check of hardnessbelow 4HRC100 % Crack detection from depth of crack � 0.05 mm100 % Check of length < 0,1 mm

    Material:Standard materials are:

    Case hardened steelHeat-treated steelRolled steelMachining steelStainless steelMild steelNon-ferrous metals such asAl, Brass, etc.

    We can also provide other materialson customer request.

    Heat treatment:Quench and temperCase hardenCarbonitridingNitrocarburizationVacuum hardening

    Corrosion protection:Depending on the purpose, parts(unless they are made from stainlessmaterial) will be delivered with agalvanic coating or with an adequatecorrosion protection.

    Special Design:Dowels and shafts can be modifiedtechnically in any desired way; ifnecessary by adding the following:

    Flatted surfaces or spiral groovesfor greasing or air releaseKnurlingTransverse or axial holesDifferent diameters produced byplunge grindingBoringPin prickGrinding

    D 3 4 5 6 7L from 16 10 8 8 10

    to 50 50 60 80 80R 0,3 0,3 0,6 0,6 0,8d ~ 2,0 3,0 4,0 4,5 5,0k ~ 0,15 0,15 0,2 0,25 0,3c ~ 0,6 0,8 0,8 1,2 1,4

    D 8 10 12 14 16 18L 12 12 14 16 25 25

    100 100 115 120 120 120R 1,0 1,0 1,2 1,2 1,2 1,2d 6,0 8,0 10,0 11,0 12,0 14,0k 0,4 0,5 0,5 0,5 0,5 0,5c 1,6 2,0 2,5 2,7 3,0 3,5

    L

    C

    D

    R

    d

    k

    15-20�

    The picture shows among other itemsdowels with spiral grooves which aremounted into differential gears. Thisdesign is much more cost effectivethan the production of the spiralgroove in a gear wheel to provide anoil supply.

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    Custom Turned Part Work

    The occupation with turned workpieces of this group is madeinteresting by its numerous variations.The quantities produced range form1 single piece up to several millionpieces.Modern CNC-turning technology isintegrating more and more milling anddrilling techniques. Therefore evenmore complex parts can be produced.The all-in-one treatment allows us toreduce the setting up actions therebyachieving higher precision andreducing cost at the same time.

    Range of performance:Diameter: 1 to 60 mmLength: up to 400 mm

    Machines used:Ring-turning machinesTurning machines up to Ø 40 mmLongitudinal turning machines upto Ø 20 mmTransfer machines up to Ø 20 mmCNC- longitudinal turning machinesup to Ø 20 mmWork spindle and counter spindlemachine with Y/B- axis for all in onetreatment up to Ø 60 mmCentreless cylindrical grinding machine up to Ø 40 mmPlunge grinding machineup to Ø 40 mm

    Materials:All sorts of pure Carbon-steel orStainless, Austenitic and MartensiticSteel; copper alloys such asBrass, Bronze and so onSpecial alloys e.g. Monel,Inconel, Hastelloy and many more.

    Heat treatment: Quench and temper Case harden Carbonitriding Nitrocarburization Vacuum hardening

    The picture shows custom turnedwork pieces and parts that are beingproduced by all-in-one treatment:Pipe sections, also thin-walled, studbolts, head-plates, sealing plug, plainroller, bushes, head bolts and so on

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    Other Parts

    Materials and Semi-finished partsThis is the basis for the quality of thefinished part.Our core-competence mainly lies inthe further treatment of cold-drawnprofiles. By cold-drawing of thematerial a high dimensional accuracy,a smooth surface and work hardeningis achieved.

    Special Profiles:The use of profiles, which areproduced as close as possible to thefinished product size, allows for acost effective manufacturing of milledparts. Profiles are therefore onepotential for saving cost of machines,wages and energy.

    Materials:Mild steelCase hardened and annealed steelStainless steelHigh-alloyed steelNon-ferrous metals such as Aluminium, Brass, etc.

    Other common materials on customerrequest.

    Milled parts/LaserpartsThe milled parts are produced onuniversal, special and CNC-millingmachines up to 5 axis. We thereforecan produce a large variety of cross-sections from 1 x 1 mm up to120 x 60 mm and length up to 2 m.

    Laser parts are a very good extensionof our program because very oftenthey represent a more cost-effectivealternative to milling and stampingtechnology.Stainless steel up to 10 mm thicknessSteel up to 12 mm thicknessAluminium up to 4 mm thickness

    Photo: These CNC-milled parts havebeen produced by 3-5 axismachines. The laser parts were cutby our 4 KW Co2-Lasermachine.

    Parts for Assembly TechnologyOur product range can be dividedinto 2 fields:1. Standard program:

    These are the common screws forT-slots, T-nuts and those forC-profiles.

    2. Special parts program:These parts are produced accor-ding to customer drawings and those for special purposes are realised in projects workingtogether with the customer.

    Photo: Nuts for T-slots accordingDIN 508 and for aluminium profiles,special nuts, nutscrews andC-profiles.

    The Variety of PossibilitiesWe’d like to show you with anexample our possibilities in the fieldof production and engineering...

    Photo: This nut which can be fittedinto a C-profile has an automaticallywelded on flat spring and fourgrooves. These grooves aredesigned for breaking through thepaint or the anodized layer on thesurface on which the part is clamped.This is one example for our variousproduction capabilities. Theprocedure and the machines weredesigned and built by us.

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    Worldwide Delivery

    We are represented in3 world regions

    Through globalization,many of our customers nowhave production facilitiesspread throughout manycountries. They requirea uniformity of productsupply and quality.

    In order to make sure thisfacility is available to all ourcustomers we haveensured we can provideworldwide distribution.

    JapanMalaysiaSingapore

    AustraliaSouth KoreaSouth Africa

    AustriaBelgiumCzech RepublicDenmarkEstoniaFranceGreeceGreat BritainHungaryIrelandItalyLatviaLithuaniaLuxemburgMaltaNetherlandsNorwayPolandSwedenSwitzerlandSlovakiaSpainTurkey

    CanadaUSA

    Mexico

    Brazil

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    How to get to us

    Georgensgmünd lies in theheart of the FranconianLakeland south of Nurembergon the B2 national road.

    Leave the Autobahn A6 at theexit Roth or coming on theA9 leave at exit Roth on tothe B2 road in directionWeißenburg.Coming to the villageUntersteinbach turn rightin direction Bernlohe/Georgensgmünd.You cross Georgensgmündin southerly direction(Bahnhofstraße/PleinfelderStraße) almost to the end ofthe village until you reacha right turn off into theindustrial area (Industriegebiet).There you turn into theBreitenloher Weg, where youwill find us on the right sideat building number 4.

    A6

    A9

    A3

    A9

    A6

    Georgensgmünd

    B2

    B466

    B2Neumarkt

    Allersberg

    Ingolstadt

    Nördlingen

    Gunzenhausen

    Ansbach

    Schwabach

    FürthNürnberg

    Roth

    Weißenburg

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    Our Various Possibilities

    DEMA Präzisionsteile GmbHBreitenloher Weg 4D-91166 GeorgensgmündPhone: +49 9172/6945-0Fax: +49 9172/[email protected]

    Turned parts and milled parts, singlecopies or series production.Series production with all commonmaterials, surface treatment,heat treatment.

    Cold formed dowels and shafts,parts from series productionex stock, refined treatment,grinding, lapping, barrelling.

    Complete structural components,welding technique, soldering,combinations of materials.

    We are your partner in yourdevelopment team. We haveour own fixture construction,construction of special purposemachines and tool making.

    Technical control to provide ourcustomer with full analysis oftheir products by doing spectral-analysis, corrosion tests, tensiletests, 3-D measuring.

    EDI-Data transfer according VDA

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