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   sls-metall

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                     Thread tool (Selective Laser Melting)

Requirements

     • Contour accuracy
     • easy assembly
     • Cut thread
     • Supplementation with PU plastic parts
     • Color of plastic parts similar to RAL table and slightly translucent

Material

     • SLS metal: steel 1.2709   (alternative: stainless steel 1.4404)
     • Polyurethane: P1015   (alternatively: P1033)

Dimensions of the component

     • 65 x 50 x 25 mm (in assembly)

   Selective Laser Melting

   PU vacuum casting

     • SLM_Gewindewerkzeug_1
     • SLM_Gewindewerkzeug_5
     • SLM_Gewindewerkzeug_2
     • SLM_Gewindewerkzeug_4
     • SLM_Gewindewerkzeug_3

    

    

    
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           Überarbeitete Gesamtübersicht

   Alle Verfahren im Vergleich

   Für einen besseren Überblick zu allen
   Verfahren wurde als Reaktion auf
   Kundengespräche die Leistungsübersicht zum
   Unternehmen PTZ überarbeitet. Die Verfahren
   stehen jetzt mit einer Angabe zur maximalen    ptz-leistungsuebersicht-neu
   Teilegröße in einer Liste untereinander. Auf
   einen langen Erklärungstext wurde verzichtet.
   Stattdessen findet der Leser mit wenigen
   Schlagworten die wichtigsten Merkmale und
   Materialinformationen. Die Konzentration auf
   die Leistungen soll den Entwicklern und
   Einkäufern helfen mit wenigen Blicken die
   relevaten Grundlagen zu erfahren.
    Jetzt hier direkt ansehen oder über den
   Downloadbereich öffnen:
                                                   
     • Neue Leistungsübersicht (PDF)
     • Neue Leistungsübersicht - kurz (PDF)
     • weitere im Downloadbereich

    

    
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                  3D-Druck vom Krokodilschädel

   Januar 2016 - Jeder Mitarbeiter von PTZ kannte es: Das
   Krokodil aus dem Dresdner Zoo. Jedoch hätte niemand
   gedacht, dass die gewaltige Echse mit den großen Zähnen
   dem Firmengelände gefährlich nahe kommen könnte. Im
   November tauchte ein Exemplar in den Gebäuden von PTZ auf.

   Um sowohl im Dresdner Zoo als auch im Naturkundemuseum
   Dresden zukünftig präsent zu sein, wurde der Schädel von
   Krokodil Max nach dessen Ableben eingescannt. Die Firma
   Jähne GmbH für Produktinnovation, die sonst eher mit
   technischen Teilen beschäftigt ist, übernahm die
   Datenaufbereitung von Ober- und Unterkiefer der
   Panzerechse. Auf dieser Basis folgte bei PTZ der 3D-Druck.

   Zur Herstellung des Krokodilkopfs wurde bei PTZ das
   Knochengerüst in einzelnen Schichten wieder aufgebaut. Als
   Verfahren wurde das 3D-Druckverfahren Stereolithographie
   eingesetzt. Damit entstand aus den eingescannten Daten das
   monströse Knochengerüst samt allen Zähnen neu. Rund 2,5
   Liter Stereolithographie-Harz P3002 wurden in mehreren
   Stunden mit dem Laser ausgehärtet. Nach dem Entfernen der
   Stützstruktur konnte der 3D-Druck an Herrn Jähne übergeben
   werden, der die finale Bearbeitung der Oberflächen         ptz krokodil 1k
   vornahm.
                                                              ptz krokodil 2k
   Am 14. Januar 2016 erfolgte die feierliche Übergabe des
   Exponats an den Dresdner Zoo. Hier kann das Replikat nun   ptz krokodil 3k
   von allen Besuchern direkt neben dem lebenden Nachfolger
   von Krokodil Max bestaunt werden. Informationen dazu auch
   hier.

   benjamin jaehne sz online

   Bild: Sächsische Zeitung,
   www.sz-online.de/sachsen/dresden/

   Krokodilschädel im Zoo Dresden

   Bild: Zoo Dresden, http://www.zoo-dresden.de/

    

     Über PTZ

   In der 1996 gegründeten PTZ-Prototypenzentrum GmbH
   fertigen 20 Mitarbeiter mit modernsten Technologien
   Einzelteile, Werkzeuge und Kleinserien für deutsche und
   europäische Kunden unter anderem aus der
   Automobilindustrie sowie der Medizin- und Gerätetechnik.
   Markenhersteller wie Canyon, Bosch, Fresenius und Ferrari
   sowie viele mittelständische Unternehmen schätzen die
   Vielfalt an Technologien im Hause PTZ.
                                                               

    

    
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   CAD-Service

     • Services
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                                CAD Engineering

   CAD engineering can only be offered to our  
   German-speaking customers at this time.
                                                • entwickler_beraten
                                                • ptz_konstruktion_zahnrad_gr

    

    
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   CNC-Fertigung

     • Services
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                                 CNC production

Flexibility for the highest demands

   CNC milling still is one of the most flexible             • cnc-fraesen_03
   production technologies. It can be used in multiple       • cnc-fraesen_02
   ways for the production of prototypes. CNC milling is     • cnc-fraesen_01
   given its versatility by the high dimensional accuracy
   and a wide selection of potential base materials.                         
   Possible options are quickly available prototypes made
   from plastic or metal, as well as the reworking of
   vacuum casting parts, precision casting parts, or
   injection molding components.

   With our five-axle milling machine even extremely
   complex contours come out perfect.

   The machine produces freeform surfaces, like the ones
   of a compressor wheel, without any difficulties, even
   though they put the technology to the utmost.

   In the PTZ we use CNC milling especially often for the
   reworking of cast parts from vacuum casting and
   lost-wax casting. Additional holes, the cutting of
   threads, or the face milling of surfaces refine
   component parts in a subsequent treatment.

   You will find exemplary products of this technique
   under references.
   Information CNC-milling (pdf, German)                                     

    

    
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   Unternehmen Chronik

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                          PTZ - When ideas take shape

   Since 1996 we have been building prototypes and small series. We have
   continuously developed further our range of services, always keeping at
   the state-of-the-art. With a team of 20 highly qualified employees we as a
   specialized service provider support renowned companies from the
   automobile industry, the field of medical engineering and instrument
   engineering among others, in their pursuit of developing innovative
   products. Brand manufacturers such as Siemens, Bosch, Miele, Fresenius,
   Ferrari and Ducati, as well as many small and medium-sized companies value
   the wide spectrum of available technologies at the PTZ, solid and reliable
   consultations and the high quality of the models provided.

    

At a glance

   PTZ-Prototypenzentrum GmbH

   founded:           1996
   located:           Dresden
   managing director: Detlef Kistenmacher, Michael Kistenmacher, Hagen Vogel
   employees:         20 high qualified specialists
   production area:   2,000 square meter
   certification      DIN EN ISO 9001 (since 2004)
   clients:           customers in Germany and Europe; development
                      departments of manufacturers in the field of automobile
                      technology, electric tool technology and medical
                      engineering
   sales offices:     headquarters in Dresden, foreign branch in Italy

    

    

    

    
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                                    Contact

   PTZ-Prototypenzentrum GmbH ptz gf dk 1k
   Otto-Mohr-Straße 15
   DE-01237 Dresden           Detlef Kistenmacher
   Tel. +49 351 259 392-0     CEO / Proprietor
   Fax.+49 351 259 392-22
   info@ptz-prototypen.de     ptz gf mk 1k

                              Michael Kistenmacher
                              CEO / Project management
   IFrame
                              ptz gf hv 1k
   Google maps
                              Hagen Vogel
                              CEO / Sales

                               

                              ══════════════════════════

                              Dr.-Ing. Ingolf Berndt
                              COO

                               

                              Oscar Cermelli
                              Sales representative Italy
                              mobil: +39 335 6411971
                              E-mail

                               

                              Ronald Pfaff
                              Project Manager

                               

                              Sten Rentsch
                              Project Manager

                               

    

    
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     • Leistungen
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                            Von der Idee zum Produkt

   Sie liefern die Idee, wir geben ihr Gestalt. Denn unser Name ist Programm:
   Wir fertigen für Sie Prototypen und Kleinserien in Kunststoff und Metall -
   seit über 20 Jahren. Aus dieser Erfahrung kennen wir für jedes Produkt den
   optimalen Werkstoff und das richtige Verfahren.  Unsere Spezialisten
   arbeiten präzise und handwerklich sauber, damit Sie schon in kürzester
   Zeit Ihr Produkt in Händen halten können.

   Gerne geben wir Ihnen einen tieferen Einblick in unsere Leistungen. Nehmen
   Sie doch einfach Kontakt auf. Wir freuen uns auf Ihre Anfrage.

   Stellen-
   angebote
   bewerbung q200
   Gestalten Sie die
   Zukunft mit und
   bei uns

   mehr

    

   Klarsichteile
   (PU-Vakuumguss)
   Fluidversuch
   Für freien Blick in das Innenleben eines Getriebegehäuses

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                          From the idea to the product

   You provide the idea, we’ll give shape to it. The name says it all: for
   about 20 years we have been producing prototypes and small series from
   plastic and metal. We have the experience to choose the best material and
   the right procedure for each individual product. Our specialists work
   accurately and clean. This way you will receive your product within the
   shortest amount of time possible.

   We would be happy to give you further insights into our services. Do not
   hesitate to contact us to get a quotation. We are looking forward to your
   request.

   Thread tool
   (SLM)
   SLM Gewindewerkzeug 1k
   To deliver customers
   without series
   tool

   Read more ...

   Services in
   English
   ptz-leistungsuebersicht-neu
   All services as a
   summary on one
   brochure.

   Read more

   Head of the
   crocodile
   ptz krokodil 1k
   Model of a real size 
   crocodile head.

   more

    

    
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     • Servizi
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                             Dall’idea al prodotto

   PTZ dà forma alle Vostre idee. E’ da oltre 20 anni che la nostra società
   realizza prototipi e piccole serie in plastica e metallo. Grazie a questa
   pluriennale esperienza siamo sempre in grado di scegliere il materiale e
   la tecnologia ottimale per il Vs. prodotto.  I nostri specialisti lavorano
   con metodo, precisione, qualità e puntualità.

   Ecco alcuni esempi di quanto da noi realizzato. Non esitate a contattarci
   per avere informazioni più dettagliate su di noi e sulle nostre
   tecnologie. Saremo felici di poter rispondere alle Vostre domande o
   richieste.

   Strumento per la
   filettatura (SLM)
   SLM Gewindewerkzeug 1k
   Per offrire ai clienti
   senza serie
   strumento

   Leggi tutto...

   Services in
   Italiano
   ptz-leistungsuebersicht-neu
   Tutti i servizi come
   sintesi su uno
   opuscolo.

   Leggi tutto

    

    
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                            Von der Idee zum Produkt

   Sie liefern die Idee, wir geben ihr Gestalt. Denn unser Name ist Programm:
   Wir fertigen für Sie Prototypen und Kleinserien in Kunststoff und Metall -
   seit über 20 Jahren. Aus dieser Erfahrung kennen wir für jedes Produkt den
   optimalen Werkstoff und das richtige Verfahren.  Unsere Spezialisten
   arbeiten präzise und handwerklich sauber, damit Sie schon in kürzester
   Zeit Ihr Produkt in Händen halten können.

   Gerne geben wir Ihnen einen tieferen Einblick in unsere Leistungen. Nehmen
   Sie doch einfach Kontakt auf. Wir freuen uns auf Ihre Anfrage.

   Stellen-
   angebote
   bewerbung q200
   Gestalten Sie die
   Zukunft mit und
   bei uns

   mehr

    

   Klarsichteile
   (PU-Vakuumguss)
   Fluidversuch
   Für freien Blick in das Innenleben eines Getriebegehäuses

   mehr

    

    
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   kleinserienspritzguss

     • Services
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                      Injection Moulding for small series

High-quality pre-series parts made from original material

                                                              • spritzguss_01
                                                              • spritzguss_02
   Using the pre-series injection moulding technique, first   • SG-Werkzeug_g
   parts are available in a significantly shorter amount of
   time than it is the case with series tools. Working with                  
   aluminium tools that are produced in the CNC machine, it
   is possible to carry out mould trials of parts after
   just a few weeks in most cases. The production of the
   tool is also based on 3D-data, similar to other
   procedures where 3D-data is used.

   When the number of pieces exhausts the capacity of
   vacuum casting, the injection moulding technique takes
   over and produces parts for zero series or pre-series.
   The tools can be used for the production of up to 20,000
   pieces. Another advantage is the usage of series
   materials, since the technique is just the ‘small
   offshoot’ of the series procedures.
     Technical data                                                          

   Information injection moulding (pdf, German)

    

    
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                                  Legal notice

   Responsible for the content:

   PTZ-Prototypenzentrum GmbH
   Otto-Mohr-Straße 15
   D-01237 Dresden
   - Germany -

   Tel. +49 351 - 259 392-0
   Fax. +49 351 - 259 392-22
   info@ptz-prototypen.de
   (This e-mail adress is protected against spambots!
   JavaScript has to be activated, to show it.)

   Ust-Id-Nr DE 812 841 617

  Chief Executive Officer:

     • Detlef Kistenmacher
     • Michael Kistenmacher
     • Hagen Vogel

  Webmaster:

   Hagen Vogel, PTZ Prototypenzentrum GmbH

  Design, concept, text:

   Katrin Breyer Artdirection, Dresden
   Schilling PR, Dresden

  Realisation:

   xima media GmbH, Dresden

   ══════════════════════════════════════════════════════════════════════════

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   DDV-Feinguss

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                                Lost Wax Casting

Casting for filigree geometries

   The proven rapid manufacturing technique lost-wax casting
   is the technology of choice for comparably fast
   productions of metal prototypes and small series of five
   to twenty pieces in a high-grade casting quality. DDV
   stands for the German term “Druck-Differenz-Vakuum”
   (differential pressure vacuum). At first the master
   pattern is duplicated in a lost-wax resin. The finished
   wax pattern, which is equipped with a feeder and vent
   tubes, is embedded into a special ceramic mass. Then it is
   melted out in a temper process, which takes several hours.
   The ceramic is burned until it reaches the required
   temperature stability. In the next step the metal alloy
   that has been fused inductively in a protective atmosphere   • feinguss_02
   beforehand, is cast into the casting mould. During the       • feinguss_03
   casting process the SPS control system facilitates a         • feinguss_01
   defined holding pressure on the metal melt. Even with
   filigree geometries good mould fillings and a reduction of Legierungen
   cavitation shrink holes can be warranted using this
   process. After the casting and the curing process, the
   ceramic mould is destroyed by a jet of water and the cast
   part is demoulded.

   Depending on the requirements, the cast parts are treated
   with jets or other adequate mechanical treatments, and
   thus are turned into the finished parts. This technique is
   especially inexpensive when the component part has a
   complex geometry and therefore its production would be too
   intricate or even impossible using other techniques such
   as CNC milling.

    

Lost-wax casting tolerances in DDV technology

   Information Lost-wax casting (pdf, German)

    

    
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   3d-vermessung

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                      Measurement and Reverse Engineering

    
                                                    
   Measurement and reverse engineering can only be
   offered to our German-speaking customers at       • reverse-engineering_06
   this time.

    

    
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              Company development 2017

   1st march, 2017 - Das neue Jahr brachte PTZ    ptz geschaeftsfuehrung 2017
   die lang erwartete Fertigstellung des          1 k
   Hallenneubaus und Änderungen in der
   Organisationsstruktur bei PTZ
   Prototypenzentrum GmbH in Dresden.

   Read more ...

                New service summary

   Now available in English & Italiano
                                                  ptz-leistungsuebersicht-neu
   To give you more information at a glance, we
   have brought all general information about our
   services in one broshure.

   Read more ...

                        3D printer

   Will everything be printed?

   Due to the strong media coverage, the level of       3d-drucker fabbster k
   awareness of 3D printing has increased lately. The
   term 3D printer is used here as an umbrella term for
   a variety of machines and processes. Will everything
   be soon just printed? Can anybody do it?

   Read more ...

                       Fascination

   It is reflected in the formal language of each line Ferrari F12 Berlinetta
   of the new Ferrari and PTZ could deliver to their
   formation with some prototype parts.
                             
                             

                      Meerjüngling Han (German)

   Vom Wachs zum edlen Kunstobjekt
                                                                    Meerjunge
   2012 – Die meisten kennen die kleine Meerjungfrau, die im Hafen
   von Kopenhagen sitzt. Seit Juni hat "Sie" Gesellschaft. Der
   Meerjüngling Han hat in Helsingör seinen Platz eingenommen hat.
   Bis dahin war es ein langer Weg.

   Read more ...

               Eilige Prototypen (German)

   23.Mai 2012 - Von den 17 Spezialisten des Dresdner
   Prototypenbauers stand zur 4. Rewe Teamchallenge    Team-Challenge-Dresden
   ein 4er-Team am Start. Auch im nächsten Jahr wollen
   die Sportler wieder dabei sein. Das Ziel ist klar:
   Noch schneller werden.

   Read more ...

             Prototype manufacturing in practice

   Dresdner PTZ gives students insight into the production

   18th April 2013 - Dresden PTZ prototype center GmbH      Studenten bei PTZ
   makes students ready for the practice: Mechatronic
   engineering students at the Technical University of
   Dresden are invited again this year to get a impression
   of the fast and often highly confidential production of
   models, initial samples and small series.

   Read more ...

                Develop cost-effective

   Save up to 70 percent of development costs with
   high-quality prototypes
                                                    Konstruktion © Eric Milos
   Companies can save up to 70 percent of their
   development costs through the use of prototypes.
   With the production of prototypes developers can
   verify design and function in an early
   devlopment status.

   Read more ...

                    In English available

   The basic pages of our website are now available in    english available k
   English. If you are interested in PTZ you can find all
   necessary information to our services, the company and
   how to contact us or to send your request. 
                              
                              

                           Ideas to touch

   PTZ Prototypenzentrum Dresden builds master patterns
                                                                   STL-Modell
   To give a shape to ideas for the first time, to make it
   tangible and prepare them for practice tests - this is the
   field of work of Detlef Kistenmacher.

   Read more ...

    

    
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   Polyamidguss

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                               Polyamide Casting

Prototype in close contact with series product

   With the polyamide casting technique, a rapid
   prototyping technique as well, high-quality
   component parts with near-series properties are
   produced within a very short period of time.
   These parts are made from thermoplastics – this
   feature constitutes the major difference to the
   conventional vacuum casting with polyurethanes.
   During this process monomers are enriched with
   additive and with catalytic components. For the
   polymerization, which takes place in a vacuum,
   the monomers are cast into a silicone rubber
   form. The vacuum makes it possible to produce
   shrinkage-free casts of complex form parts.        • pa-teil_mit_einlegern
   Usually generatively produced master patterns      • polyamidguss_01
   are the base for the casting mould.                • polyamidguss_02

   Key benefits of this technique are the
   production-like properties of the material: the
   produced component parts can be used as fully
   adequate functional prototypes or small series.
   Function and endurance tests that are carried
   out using these prototypes, provide reliable
   results and give security for the optimal lay
   out design of serial parts. Especially when it
   comes to high thermal or mechanical strains,
   prototypes made from PA6 (also called nylon) are
   a great alternative to conventional vacuum
   casting parts made from polyurethane.

Technical data

   Information Polyamid casting (pdf, German)

    

    
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                                   References

   For many companies, we have implemented some very complex projects. Even
   if we can not talk about a number of prototypes and small series, we will
   present some interesting examples. Convince yourself of the quality of our
   work, read about the possibilities and procedures. Afterwards we can talk
   about your project.

    

    

   Design models (STL+SLS)
   stl-sls-lichtschalter 3k
   Our client in South America needed first design patterns

   Read more ...

   Motor housing (SLS-K)
   Bohrmaschine
   First steps of
   a development process

   Read more ...

   Thread tool
   (SLM)
   SLM Gewindewerkzeug 1k
   To deliver customers
   without series
   tool

   Read more ...

   Transparent parts (vaccum casting)
   Fluidversuch
   For clear view on the core of a gearbox

   Read more ...

   Hamer drill (PU+ddv casting)
   pu-ddv bohrhammer 2k
   The functional check in tough practical test

   Read more ...

   Center console (lost wax casting)
   ddv mittelkonsole 2k
   Elegant fine aluminum castings produced ...

   Read more ...

     • Start
     • Prev
     • 1
     • 2
     • Next
     • End

    

    
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                                  Your request

   Please give us all the information listed below for a quick response.
   Otherwise you can also send an E-Mail with these information.
   _____________________
   Title:
   [_____________]
   Name:
   Company:
   _____________________
   Street:
   _____________________
   postcode | location:
   _____________________
   Country:
   _____________________
   E-Mail:
   _____________________
   Telephone:
   _____________________
   Technique:
   [_________________________]
   Number of pieces:
   _____________________
   Material:
   _____________________
   Color:
   _____________________
   Your message:
   _____________________
   _____________________
   _____________________
   _____________________
   _____________________
   ___________________________________________________
   ___________________________________________________
   ___________________________________________________
   ___________________________________________________
   It is always helpful to know which properties you pay special attention.
   Is it a presentation part, you help us with information on visible
   surfaces and expectation to the surface texture. If the focus is on
   function, information on functional characteristics are helpful. We will
   gladly call you back and discuss the details if you wish so.
   [ Submit ]
   [ Delete ]
   _____________________ 

    

    
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   sls-metall

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                            Selective Laser Melting

From the 3D-model straight to the functional part made from metal

   Direct metal laser sintering is a technology with an
   extremely promising future. With this technique tool
   inserts and functional parts can be produced directly
   from 3D-data. This sophisticated, fast technique
   broadens the production of high-grade metal prototypes
   and supplements the precision metal casting technology.

   An additive manufacturing technique, direct metal laser
   sintering works similar to the selective laser sintering
   with plastic – except for the base material in use. The
   first model is made from metal powder, which also is
   built up layer by layer using a laser. Prototypes
   created by metal laser sintering are used as
   mechanically robust functional parts, as well as quickly   • SLS-Metall_02
   manufactured tool inserts. The metal powders in use are    • SLS-Metall_01
   equivalent to the material used in serial productions      • SLS-Metall_04
   and obtain 99.9% of their density and properties through   • SLS-Metall_03
   the melting process.
    
   Available materials:

     • aluminium (AlSi10Mg)
     • stainless steel (1.4404)
     • tool steel (1.2709)
     • titanium (TiAl6V4)
     • further material on request
    
   Technical data

   Information Selective Laser Melting (pdf, German)

    

    
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   Selektives-Lasersintern

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                        Laser sintering of plastic parts

From Powder to prototype

   Using selective laser sintering (plastic),    • lasersintern-kunststoff_01
   a rapid prototyping technique, the first      • lasersintern-kunststoff_02
   model is made from pulverized plastic. A      • lasersintern-kunststoff_03
   remote controlled laser melts the first
   layer step by step into the powder bed
   according to the contours of the component
   part which has been sliced into layers
   beforehand. Then the build platform is
   lowered as much as the thickness of the
   layer, and the next layer is melted in. A
   roll helps to continuously put the material
   on the build platform over the entire
   surface with a layer thickness of 0.1mm.
   This way the prototype is build up
   vertically layer after layer up until it
   has reached the desired form – complex
   geometries, hollow spaces that are covered,
   or undercuts become possible options.

   Prototypes that are made by using this
   technique are mechanically strong and
   robust and are fit to be used for initial
   function tests. They are also used as
   pre-series models in small quantities.
    
   Available Materials

     • P4000 - Polyamide, unfilled
     • P4001 - Polyamide, Glass Filled
    
   Specifications

   Information selective laser sintering (pdf,
   German)

    

    
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                One step ahead through rapidness and experience

   You have a plan – we’ll make it come true. For more than 15 years we have
   been building prototypes and small series. That’s why we surely know the
   right procedure, use innovative technologies, have the experience in
   choosing the best material, and work accurately and clean. You can rely
   on our flexibility, personal support and an on time realisation of your
   parameters.

   We will produce your prototypes or small series within a short period of
   time and help you to reduce your development time. This way your product
   will quickly be ready for serial production. Not only do we transform your
   data precisely into reality – we also consider it to be our duty to detect
   potential complications in the parts as early as possible. Therefore you
   will always be on the safe side with PTZ.

   An overview to all our services you may find in the service-summary (pdf)
   .

   3D-printing
   y1 urmodell 117
   You want to hold the developed part in your
   hands for the first time quick?

   Read more ...

   Prototypes
   Erste Prototypen
   You need a proto-
   type with near-series features for testing or presentation purposes?

   Read more ...

   Small Series
   Kleinserien
   The number of pieces that you need does not quite justify a production
   series tool?

   Read more ...

    

    
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   stereolithographie

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                               Stereolithography

Laser and light

   In the rapid prototyping technique
   stereolithography a computer-controlled laser
   beam which is positioned through adjustable
   mirrors, hardens the desired form layer after
   layer from a liquid synthetic resin that is
   sensitive to light (Photopolymer).

   The necessary build platform, which the model is
   constructed on, is situated up to 0.2 mm below
   the surface of the liquid at the beginning of
   the process. A blade smoothens the synthetic
   resin layer for the prototype to be build, and
   the laser beam hardens the substance partially.
   Subsequently the platform and the work piece      
   with it are lowered down for another 0.05 to 0.2
   mm and the construction of the next layer is       • stereolithographie_05
   started. This way a three-dimensional prototype    • stereolithographie_03
   is created bit by bit. After the building          • stereolithographie_01
   process is completed, the support structure is     • stereolithographie_02
   removed. The model is cleaned, post cured under
   UV radiation, and its surface is finished
   manually.

   Depending on the size of the model the prototype
   can be produced within a very short period of
   time. Component parts that have been constructed
   using stereolithography can serve as design of
   fitting samples. Just as often they function as
   master patterns in following procedures such as
   the vacuum casting or the metal casting – just
   another reason why the rapid prototyping
   technique is so important.

 

Technical data

   Information stereolithography (pdf, German)

    

    
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   Vakuumgiessen

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                                 Vacuum Casting

Classic, fast and inexpensive: polyurethane

   Vacuum casting with polyurethane is a rapid
   manufacturing technique that is used to multiply shaped
   plastic parts of complex geometries. When it comes to
   prototypes and small series, this is a fast and
   inexpensive alternative to the injection moulding
   technique.

   2-K-polyurethane cast resins are vacuum cast into a
   silicone rubber form and then they are cured. Because of
   the vacuum it is possible to achieve highly accurate and
   shrinkage-free casts. Sink marks, caused by material
   accumulation, do not occur. For example, we can produce    • vakuumguss_06
   transparent, rubber-like or heat-resistant form parts      • vakuumguss_02
   using selected cast resins. The construction of            • vakuumguss_01
   undercuts is not complicated at all, thread nuts or        • vakuumguss_05
   other inserts can be cast integral as well. The minimal    • vakuumguss_03
   wall thickness is between 0.5 and 1.0 mm depending on
   the flow path. It is possible, of course, to
   mechanically machine the formed parts with the usual
   techniques afterwards. Customer-specific requests
   concerning surface finishes can be realized by dyeing,
   lacquering, polishing, or coating among others.

   Usually manufacturing the master patterns for the
   silicone rubber forms is fast and cost-efficient because
   of the generative rapid prototyping technique. Costs for
   models and forms are about five to ten percent of the
   tool costs of the injection moulding technique.

Technical data

   Information Vacuum casting polyurethane (pdf, German)

    

    
