DE19937315A1 - Process for detecting and producing tempered channels in molds comprises determining the number, course and the shape of the channels using thermoanalysis, converting into CNC data - Google Patents
Process for detecting and producing tempered channels in molds comprises determining the number, course and the shape of the channels using thermoanalysis, converting into CNC dataInfo
- Publication number
- DE19937315A1 DE19937315A1 DE19937315A DE19937315A DE19937315A1 DE 19937315 A1 DE19937315 A1 DE 19937315A1 DE 19937315 A DE19937315 A DE 19937315A DE 19937315 A DE19937315 A DE 19937315A DE 19937315 A1 DE19937315 A1 DE 19937315A1
- Authority
- DE
- Germany
- Prior art keywords
- channels
- shape
- course
- thermoanalysis
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2218—Cooling or heating equipment for dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/007—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Die Erfindung bezieht Sich auf Formen die bei der Teileproduktion nach dem Druck- oder Spritzgussverfahren Verwendung finden und insbesondere auf ein Verfahren zur Gestaltung und Herstellung von Heiz- und Kühlkanälen in den Formen.The invention relates to forms in the Parts production according to the pressure or injection molding process Find use and in particular to a method for Design and manufacture of heating and cooling channels in the To form.
Ein wesentlicher Faktor für die Produktion guter Druck- oder Spritzgussteile ist die Wärmebilanz in der Form. Dabei muss vor Inbetriebnahme die Form vorsichtig erwärmt und während der Produktion, zur Vermeidung örtlicher Überhitzung, gekühlt werden. Dieser Temperierungsprozess erfordert grösste Sorgfalt, da die Wärmezu- oder -abfuhr nicht nur die Standzeit der Form verbessert, sondern auch einen wesentlichen Einfluss auf die Teilequalität hat. So ist z. B. für ein lunkerfreies und feinkörniges Gefüge des Gußstückes eine geregelte Erstarrung zwingend erforderlich.An essential factor for the production of good printing or Injection molded parts is the heat balance in the mold. Do this before Putting the mold carefully warmed up and during the Production, cooled to avoid local overheating become. This tempering process requires the greatest care, since the heat supply or dissipation does not only mean the service life of the mold improved, but also a significant impact on the Part quality. So z. B. for a void-free and fine-grained structure of the casting a controlled solidification absolutely necessary.
Durch Entwicklung moderner Berechnungsmethoden, Meß- und Regelverfahren besteht ein hoher Kenntnisstand über die Wärmeverteilung in einer Form. By developing modern calculation methods, measuring and Control procedures there is a high level of knowledge about the Heat distribution in one mold.
Aus der WO 88/02688 ist ein Verfahren und eine Vorrichtung bekannt, in dem beim Spritzgussprozess eine Vielzahl von Temperaturmesstellen und deren einheitliche Überwachung offenbart ist. Gegenstand der Offenbarung ist auch die Analyse der gegenseitigen Beeinflussung der einzelnen Temperaturwerte und eine gemeinsame Regelung aller Messtellen.WO 88/02688 describes a method and a device known in which a large number of injection molding processes Temperature measuring points and their uniform monitoring is disclosed. Analysis is also the subject of the disclosure the mutual influence of the individual temperature values and a common regulation of all measuring points.
Eine messtechnische Erfassung des gesamten Wärmehaushaltes bei der Fertigung von Druckgussteilen wird auch in einem Aufsatz in der Fachzeitschrift "Geisserei 81 (1994) Nr. 13, Seite 452 und 453" beschrieben.A measurement of the entire heat balance in the production of die-cast parts is also described in an article in the journal "Geisserei 81 ( 1994 ) No. 13, pages 452 and 453".
Beiden Veröffentlichungen gemeinsam ist das Ziel die Fertigungssicherheit zu erhöhen und damit die Qualität der Gußteile zu steigern. Keine Lösung wird dagegen für einen in seinem Einfluß ganz wesentlichen Aspekt, nämlich der Optimierung der Heiz- und Kühlkanäle in Querschnitt und Lage aufgezeigt.The goal of both publications is the Increase manufacturing reliability and thus the quality of the Increase castings. However, no solution will be found for one in his influence very important aspect, namely the Optimization of the heating and cooling channels in cross-section and position shown.
Das auch heute noch übliche Herstellverfahren von Formen und Formeinsätzen ist eine spanende Bearbeitung wie Fräsen oder Erodieren, Heiz- und Kühlbohrungen werden durch Bohren mittels Bohrwerkzeugen eingebracht. Damit können nur geradlinige Bohrungen hergestellt werden. Dies ist unbefriedigend, da auf diese Weise nur unvollkommen den geometrischen und thermischen Verhältnissen der herzustellenden Teile und des Herstellungsprozesses entsprochen werden kann. Versuche durch mehrere untereinander verbundene Bohrungen den entstehenden thermischen Verhältnissen zu entsprechen, führen zu einer teuren Bearbeitung bei gleichzeitiger Schwächung der formbildenden Teile und selbst dann ist das Ergebnis nur ein Kompromis. Die Grenzen der mechanischen Bearbeitung durch Bohren der Kanäle zeigt sich auch deutlich im Bereich von schmalen, hohen Rippen wo eine zylindrische Bohrung sowohl problematisch einbringbar ist und darüber hinaus die gestellte Aufgabe keineswegs erfüllt. The manufacturing process for molds and molds that is still common today Molding is machining such as milling or EDM, heating and cooling holes are made by drilling Drilling tools introduced. It can only be used for straight lines Holes are made. This is unsatisfactory on there this way only imperfect the geometric and thermal Ratios of the parts to be manufactured and the Manufacturing process can be met. Try through several interconnected holes the resulting thermal conditions lead to a expensive processing while weakening the shape-forming parts and even then the result is only one Compromise. The limits of mechanical processing Drilling the channels is also clearly evident in the area of narrow, high ribs where both a cylindrical bore problematic can be introduced and also the posed Task never accomplished.
Hier will die Erfindung Abhilfe schaffen und stellt sich die Aufgabe ein Verfahren vorzuschlagen, welches unter Einbeziehung von Computer-(CA-)Techniken zu einer Optimierung der Gestaltung von Heiz- und Kühlkanälen bei thermisch belasteten Formen führt. Unter Gestaltung ist dabei sowohl die Lage der Kanäle, als auch ihren Verlauf, sowie Querschnittsgrösse und Querschnittsform gemeint.Here, the invention seeks to remedy the situation Task to propose a procedure that involves of computer (CA) techniques to optimize the design of heating and cooling channels in thermally stressed molds leads. Under design, both the location of the channels, as well as their course, as well as cross-sectional size and Cross-sectional shape meant.
Diese Aufgabe wird ausgehend von einem Herstellverfahren für Formen nach dem Oberbegriff des Anspruch 1, durch die kennzeichnenden Merkmale des Anspruch 1 gelöst.This task is based on a manufacturing process for Forms according to the preamble of claim 1, by the characterizing features of claim 1 solved.
Die Erfindung geht dabei von der Tatsache aus, das bereits während der Konstruktionsphase unter Nutzung der CAD-Technik entstandenen Datensätze ein räumliches Formmodel ergeben. In einer mittels Finite Elemente Berechnung durchgeführten Thermoanalyse des Formmodels kann eine Optimierung der Erwärmung bzw. Kühlung der Form simuliert wird. Die daraus gewonnenen Erkenntnisse ermöglichen dann als CNC-Datensätze die Herstellung der realen Form. Durch moderne Fertigungsverfahren ist jede technisch sinnvolle Gestaltung der Form und damit der Heiz- und Kühlkanäle möglich. Diese neuen Fertigungstechnologien basieren nicht auf einer abtragenden, spanenden Bearbeitung, sondern durch eine gezielte "Schichtauftragung" (Lom-Verfahren) oder punktuelles "Auftropfen" (Laser-Sintern) eines Werkstoffes werden die formbildenden Konturen oder Einsätze hergestellt. Diese Technologien sind eine wesentliche Weiterentwicklung der aus der Oberflächentechnik bekannten Verfahren, wie Metallspritzen oder Beschichtungen. Neue Forschungsarbeiten betreffen auch Laser, die sehr kurze Pulse im Picosekundenbereich erzeugen, mit möglichen Anwendungen in der Präzisionsbearbeitung. Als Werkstoff kann beim Laser-Sintern neben organischen oder anorganischen Material auch Metallpulver bzw. Metallschmelze aus Eisen- oder Nichteisenmetall verarbeitet werden. Diese Verarbeitung geschieht in dem ein durch 3D-CAD Daten oder den entsprechenden CNC-Daten geregelter Laser Partikel oder Tröpfchen mit hoher Genauigkeit positioniert. Es kann auch eine definierte Menge Pulver als gleichmässige Schicht in der gewünschten Kontur verteilt werden. Ein Laserstrahl wird dann rechnergesteuert rasterförmig über die Schicht geführt, die zuvor bis dicht an ihre Schmelztemperatur erwärmt wurde und durch die Energie des Laserstrahls entsteht eine lokale Verbindung der einzelnen Pulverkörnchens. Der Laserstrahl verfestigt somit die pulverförmigen Substanzen. Statt der Laserbewegung kann auch eine Werkstückbewegung erfolgen bei stationärem Laserstrahl. Es kann anschließend ein heissisostatisches Pressen zur Verdichtung und Verfestigung des Gefüges erfolgen. Durch dieses Verfahren entstehen dreidimensionale Objekte direkt aus den Daten der CAD- Konstruktion. Somit ist auch die Herstellung von Heiz- und Kühlkanälen in beliebiger Form, Lage und Verlauf möglich.The invention is based on the fact that already during the design phase using CAD technology resulting data sets result in a spatial shape model. In a finite element calculation Thermal analysis of the shape model can optimize the Heating or cooling of the mold is simulated. The one from it The knowledge gained then enables the CNC data sets Making the real shape. Through modern manufacturing processes is any technically meaningful design of the form and thus the Heating and cooling channels possible. These new ones Manufacturing technologies are not based on a machining, but through a targeted "Layer application" (Lom process) or selective "Dripping" (laser sintering) on a material shape-forming contours or inserts. This Technologies are an essential advancement of processes known from surface technology, such as metal spraying or coatings. New research also affects Lasers that generate very short pulses in the picosecond range, with possible applications in precision machining. As Material can be used in laser sintering in addition to organic or inorganic material also metal powder or molten metal made of ferrous or non-ferrous metal. This Processing takes place in the one by 3D CAD data or corresponding CNC data of controlled laser particles or Droplets positioned with high accuracy. It can also be one defined amount of powder as a uniform layer in the desired contour can be distributed. A laser beam is then controlled by a computer controlled grid over the layer that has previously been heated to its melting temperature and The energy of the laser beam creates a local one Connection of the individual powder granules. The laser beam thus solidifies the powdery substances. Instead of the Laser movement can also result in a workpiece movement stationary laser beam. It can then be a hot isostatic pressing to compress and solidify the Structure. This procedure creates three-dimensional objects directly from the data of the CAD Construction. Thus, the production of heating and Cooling channels in any shape, position and course possible.
Der Kanal in einer schmalen Rippe kann statt eines zylindrischen Querschnittes jetzt auch in ovaler, rechteckiger oder anderer beliebiger Form ausgeführt werden. Das heisst optimale, prozessgeregelte Ausführungen sind möglich. Dieses gilt auch für Sektoren der Form die zuvor nicht erreicht wurden, ebenso wie für einen grosszügiger mit Radien oder anderen "weichen" Übergängen gestalteter Verlauf bei Richtungswechsel.The channel in a narrow rib can be instead of one cylindrical cross-section now also in oval, rectangular or any other form. This means optimal, process-controlled designs are possible. This also applies to sectors of the form that have not previously been reached were just as generous with radii or other "soft" transitions Change of direction.
Anhand der zwei Figuren wird diese neue Gestaltungsmöglichkeit bildlich dargestellt.This new design option is based on the two figures depicted.
Diese Figuren zeigen:These figures show:
Fig. 1 Querschnitt einer Form als "Stand der Technik" Fig. 1 a cross-sectional form as the "prior art"
Fig. 2 Querschnitt einer Form in der Gestaltung gemäß der Erfindung Fig. 2 cross section of a shape in the design according to the invention
Fig. 1 zeigt beispielhaft den Schnitt durch einen Formteil 1. Durch Pfeil 2 ist der Eintritt der Temperierflüssigkeit, durch Pfeil 3 deren Austritt gekennzeichnet. Insgesamt 8 Bohrungen müssten zur Herstellung der eigentlichen Temperierkanäle 4 eingebracht werden. Nachhaltig ist dabei neben dem hohen Fertigungsaufwand der Einsatz von Stopfen 5 deren Verwendung zu den bekannten Dichtproblemen führt, was durch Dehnung und Schrumpfung der Werkstoffe unter Temperatureinfluss unvermeidlich ist. Fig. 1 shows an example of the section through a molding 1. By arrow 2 is the entry of the bath, characterized by arrow 3 whose outlet. A total of 8 holes would have to be drilled to produce the actual temperature control channels 4 . In addition to the high manufacturing outlay, the use of plugs 5 , which leads to the known sealing problems, is sustainable, which is unavoidable due to the expansion and shrinkage of the materials under the influence of temperature.
Ein weiterer Nachteil ist das die durch Wärmestau besonders gefährdete Zonen 6 nicht mit den Kanälen 4 im erforderlichen Masse erreicht werden. Nur durch Bohrungen in der Formgravur könnte diesem abgeholfen werden, was sich aus Funktions- und Standzeitgründen verbietet.Another disadvantage is that the zones 6 which are particularly at risk from heat accumulation cannot be reached with the channels 4 to the required extent. This could only be remedied through holes in the form engraving, which is forbidden for functional and service life reasons.
In guter Anschaulichkeit ist die erfinderische Ausführungsform in Fig. 2 dargestellt. Es werden dabei auch die entscheidenden Zonen 6 erreicht und damit die Teilqualität verbessert, bei gleichzeitiger Erhöhung der Formstandzeit. Die Verwendung von Stopfen ist nicht erforderlich und der Verlauf des Temperierkanal 7 kann in optimaler Form gewählt werden. Besonders gut erkennbar ist auch der strömungsgünstige Verlauf von Temperierkanal 7.The inventive embodiment is shown in FIG. 2 in good clarity. It also reaches the decisive zones 6 and thus improves the part quality, while increasing the tool life. The use of plugs is not necessary and the course of the temperature control channel 7 can be selected in an optimal form. The flow-favorable course of temperature control channel 7 is also particularly clearly recognizable.
Beispielhafte Querschnittsgestaltungen im Verlauf des Temperierkanal 7 zeigen die Darstellungen 8, 9 und 10.Representations 8 , 9 and 10 show exemplary cross-sectional designs in the course of the temperature control channel 7 .
Die Erfindung ist nicht auf das dargestellte Ausführungsbeispiel beschränkt. Sie umfasst auch vielmehr alle Weiterbildungen im Rahmen der Schutzrechtsansprüche. So gilt diese in gleicher Weise auch für anschmelzbare Modelle aus organischen, anorganischen und metallischen Materialen mit integrierten geometrisch vielfältigen Temperierbohrung.The invention is not based on the illustrated Embodiment limited. Rather, it includes everyone Further training in the context of property rights claims. So applies this in the same way for fusible models organic, inorganic and metallic materials with integrated geometrically diverse tempering hole.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19937315A DE19937315A1 (en) | 1999-08-10 | 1999-08-10 | Process for detecting and producing tempered channels in molds comprises determining the number, course and the shape of the channels using thermoanalysis, converting into CNC data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19937315A DE19937315A1 (en) | 1999-08-10 | 1999-08-10 | Process for detecting and producing tempered channels in molds comprises determining the number, course and the shape of the channels using thermoanalysis, converting into CNC data |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19937315A1 true DE19937315A1 (en) | 2001-02-22 |
Family
ID=7917559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19937315A Ceased DE19937315A1 (en) | 1999-08-10 | 1999-08-10 | Process for detecting and producing tempered channels in molds comprises determining the number, course and the shape of the channels using thermoanalysis, converting into CNC data |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19937315A1 (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1500445A2 (en) * | 2003-07-22 | 2005-01-26 | Alpha 3D | Large metal mould |
| WO2005025779A2 (en) * | 2003-09-11 | 2005-03-24 | Ex One Corporation | Layered manufactured articles having small-width fluid conduction vents and methods of making same |
| DE102004032093A1 (en) * | 2004-07-01 | 2006-01-26 | Concept Laser Gmbh | Component produced by selective laser sintering and/or laser melting used as a tool, tool insert, cooling and heating element or nozzle element comprises a turbulence element arranged in the region of a flow channel |
| EP1661640A1 (en) * | 2004-11-24 | 2006-05-31 | Siemens Aktiengesellschaft | Method for producing a lost pattern and a core introduced into the pattern |
| WO2006073486A1 (en) * | 2005-01-05 | 2006-07-13 | D-M-E Company | Method and tool for molding |
| DE102009016110A1 (en) * | 2009-04-03 | 2010-10-14 | Tutech Innovation Gmbh | Method for the production of a mold insert for a casting mold for injection molding, comprises applying a powder forming material in a thin layer on a base surface and melting a defined area of the layer with a high energetic beam |
| DE102012000694A1 (en) * | 2012-01-16 | 2013-07-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for preparing piston for combustion engine, involves preparing layer for forming recess portion for cooling medium and/or for forming determination element |
| DE102012108427A1 (en) * | 2012-09-10 | 2014-03-13 | FTAS GmbH | Tube heat exchanger |
| EP2848340A1 (en) * | 2013-09-13 | 2015-03-18 | Jakob Lach GmbH & Co. KG | Cutting tool, in particular drill or milling cutter |
| CN105312544A (en) * | 2014-07-30 | 2016-02-10 | 丰田自动车株式会社 | Mold |
| DE102016004959A1 (en) | 2016-04-23 | 2017-10-26 | Audi Ag | Forming tool for forming metal or non-metal materials |
| DE102016008282A1 (en) | 2016-07-07 | 2018-01-11 | Audi Ag | Method for tempering an engagement contour of a tool insert of a forming tool for cold forming of metal materials and forming tool for performing the method |
| DE102016113507A1 (en) | 2016-07-21 | 2018-01-25 | Lisa Dräxlmaier GmbH | ONE-PIECE TOOL FOR THE PRODUCTION OF CASED SHAPED PARTS |
| DE202017106450U1 (en) * | 2017-10-25 | 2018-07-09 | Schaufler Tooling Gmbh & Co.Kg | Mold with cooling system |
| US10029313B2 (en) | 2014-12-19 | 2018-07-24 | Kennametal Inc. | Tool holder for a cutting insert and process for manufacturing the tool holder |
| WO2019094262A1 (en) * | 2017-11-10 | 2019-05-16 | General Electric Company | Additive manufacturing using growth build wall heat passageways |
| DE102018107561A1 (en) * | 2018-03-29 | 2019-10-02 | Volkswagen Aktiengesellschaft | A method of making a tool for use in plastics processing and such a tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19606210A1 (en) * | 1996-02-21 | 1997-08-28 | Martin Dr Nachtrodt | Stereolithographic technique departs from thin planar construction, into three dimensional deposition within gel matrix |
| DE19707906A1 (en) * | 1996-12-23 | 1998-06-25 | Univ Magdeburg Tech | Producing hollow metal moulds |
| DE19704700C1 (en) * | 1997-02-07 | 1998-09-24 | Fraunhofer Ges Forschung | Defined, delicate and punctually temperable molds and tools made of different materials, in particular metal, plastic, paper, ceramics and their mixtures, their use and processes for tempering molds and tools |
| DE19722004A1 (en) * | 1997-05-27 | 1998-12-03 | Fraunhofer Ges Forschung | Production of a metal or ceramic workpiece |
| DE19740502A1 (en) * | 1997-09-15 | 1999-03-18 | Fraunhofer Ges Forschung | Method for producing a component with a surface-near flow channel system for liquids and/or gases |
| DE19831315A1 (en) * | 1998-07-13 | 2000-01-20 | Ver Foerderung Inst Kunststoff | Injection molding of prototype products, prototype tools or tool inserts by a rapid powder injection molding which uses a negative tool insert produced by rapid prototyping for the powder molding stage |
-
1999
- 1999-08-10 DE DE19937315A patent/DE19937315A1/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19606210A1 (en) * | 1996-02-21 | 1997-08-28 | Martin Dr Nachtrodt | Stereolithographic technique departs from thin planar construction, into three dimensional deposition within gel matrix |
| DE19707906A1 (en) * | 1996-12-23 | 1998-06-25 | Univ Magdeburg Tech | Producing hollow metal moulds |
| DE19704700C1 (en) * | 1997-02-07 | 1998-09-24 | Fraunhofer Ges Forschung | Defined, delicate and punctually temperable molds and tools made of different materials, in particular metal, plastic, paper, ceramics and their mixtures, their use and processes for tempering molds and tools |
| DE19722004A1 (en) * | 1997-05-27 | 1998-12-03 | Fraunhofer Ges Forschung | Production of a metal or ceramic workpiece |
| DE19740502A1 (en) * | 1997-09-15 | 1999-03-18 | Fraunhofer Ges Forschung | Method for producing a component with a surface-near flow channel system for liquids and/or gases |
| DE19831315A1 (en) * | 1998-07-13 | 2000-01-20 | Ver Foerderung Inst Kunststoff | Injection molding of prototype products, prototype tools or tool inserts by a rapid powder injection molding which uses a negative tool insert produced by rapid prototyping for the powder molding stage |
Non-Patent Citations (1)
| Title |
|---|
| SPECKENHEUER,Gerhard P., DEISENROTH,Wolfgang: Rechnerische Simulation der Temperaturverteilung in Druckgießformen. In: Giesserei 76, 1989, Nr.18,4. Sept., S.613-615 * |
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1500445A2 (en) * | 2003-07-22 | 2005-01-26 | Alpha 3D | Large metal mould |
| FR2857890A1 (en) * | 2003-07-22 | 2005-01-28 | Alpha 3D | LARGE SIZE METAL MOLD |
| EP1500445A3 (en) * | 2003-07-22 | 2007-04-25 | Alpha 3D | Large metal mould |
| WO2005025779A2 (en) * | 2003-09-11 | 2005-03-24 | Ex One Corporation | Layered manufactured articles having small-width fluid conduction vents and methods of making same |
| WO2005025779A3 (en) * | 2003-09-11 | 2005-10-20 | Ex One Corp | Layered manufactured articles having small-width fluid conduction vents and methods of making same |
| DE102004032093A1 (en) * | 2004-07-01 | 2006-01-26 | Concept Laser Gmbh | Component produced by selective laser sintering and/or laser melting used as a tool, tool insert, cooling and heating element or nozzle element comprises a turbulence element arranged in the region of a flow channel |
| DE102004032093B4 (en) * | 2004-07-01 | 2007-05-16 | Cl Schutzrechtsverwaltungs Gmbh | Component produced by a selective laser sintering process (SLS) |
| EP1661640A1 (en) * | 2004-11-24 | 2006-05-31 | Siemens Aktiengesellschaft | Method for producing a lost pattern and a core introduced into the pattern |
| WO2006056524A1 (en) | 2004-11-24 | 2006-06-01 | Siemens Aktiengesellschaft | Method for production of a disposable pattern and core arranged therein |
| WO2006073486A1 (en) * | 2005-01-05 | 2006-07-13 | D-M-E Company | Method and tool for molding |
| DE102009016110B4 (en) * | 2009-04-03 | 2015-03-05 | Tutech Innovation Gmbh | Use of a mold for injection molding of a plastic casting |
| DE102009016110A1 (en) * | 2009-04-03 | 2010-10-14 | Tutech Innovation Gmbh | Method for the production of a mold insert for a casting mold for injection molding, comprises applying a powder forming material in a thin layer on a base surface and melting a defined area of the layer with a high energetic beam |
| DE102012000694A1 (en) * | 2012-01-16 | 2013-07-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for preparing piston for combustion engine, involves preparing layer for forming recess portion for cooling medium and/or for forming determination element |
| DE102012108427A1 (en) * | 2012-09-10 | 2014-03-13 | FTAS GmbH | Tube heat exchanger |
| EP2706320A3 (en) * | 2012-09-10 | 2014-09-10 | FTAS GmbH | Tube heat exchanger |
| EP2848340A1 (en) * | 2013-09-13 | 2015-03-18 | Jakob Lach GmbH & Co. KG | Cutting tool, in particular drill or milling cutter |
| US9987769B2 (en) | 2014-07-30 | 2018-06-05 | Toyota Jidosha Kabushiki Kaisha | Mold |
| CN105312544A (en) * | 2014-07-30 | 2016-02-10 | 丰田自动车株式会社 | Mold |
| DE102015112395B4 (en) | 2014-07-30 | 2019-12-12 | Toyota Jidosha Kabushiki Kaisha | SHAPE |
| US10029313B2 (en) | 2014-12-19 | 2018-07-24 | Kennametal Inc. | Tool holder for a cutting insert and process for manufacturing the tool holder |
| DE102016004959B4 (en) | 2016-04-23 | 2018-05-09 | Audi Ag | Forming tool for forming metal or non-metal materials |
| DE102016004959A1 (en) | 2016-04-23 | 2017-10-26 | Audi Ag | Forming tool for forming metal or non-metal materials |
| DE102016008282A1 (en) | 2016-07-07 | 2018-01-11 | Audi Ag | Method for tempering an engagement contour of a tool insert of a forming tool for cold forming of metal materials and forming tool for performing the method |
| DE102016008282B4 (en) | 2016-07-07 | 2022-08-18 | Audi Ag | Method for tempering an engagement contour of a tool insert of a shaping tool for cold forming of metal materials and shaping tool for carrying out the method |
| DE102016113507A1 (en) | 2016-07-21 | 2018-01-25 | Lisa Dräxlmaier GmbH | ONE-PIECE TOOL FOR THE PRODUCTION OF CASED SHAPED PARTS |
| US10800025B2 (en) | 2016-07-21 | 2020-10-13 | Lisa Draexlmaier Gmbh | Monobloc tool for the production of molded parts |
| DE102016113507B4 (en) | 2016-07-21 | 2024-02-01 | Lisa Dräxlmaier GmbH | ONE-PIECE INSERT FOR AN INSTRUMENT PANEL FOR PRODUCING LAMINATED MOLDED PARTS AND METHOD FOR PRODUCING A ONE-PIECE INSERT |
| DE202017106450U1 (en) * | 2017-10-25 | 2018-07-09 | Schaufler Tooling Gmbh & Co.Kg | Mold with cooling system |
| WO2019094262A1 (en) * | 2017-11-10 | 2019-05-16 | General Electric Company | Additive manufacturing using growth build wall heat passageways |
| DE102018107561A1 (en) * | 2018-03-29 | 2019-10-02 | Volkswagen Aktiengesellschaft | A method of making a tool for use in plastics processing and such a tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE19937315A1 (en) | Process for detecting and producing tempered channels in molds comprises determining the number, course and the shape of the channels using thermoanalysis, converting into CNC data | |
| DE19704700C1 (en) | Defined, delicate and punctually temperable molds and tools made of different materials, in particular metal, plastic, paper, ceramics and their mixtures, their use and processes for tempering molds and tools | |
| DE19903436C2 (en) | Process for the production of three-dimensional shaped bodies | |
| DE102014200234B4 (en) | Tool for hot forming and method for its manufacture | |
| EP1098725A1 (en) | Method and device for producing a metallic hollow body | |
| DE102015108131A1 (en) | Method and apparatus for additive manufacturing | |
| DE69424261T2 (en) | Fast production of complex castings | |
| WO2015181229A1 (en) | Layer-by-layer production method during laser melting (sls) in gravity die casting operations | |
| EP2625430B1 (en) | Method of manufacturing a turbocharger casing | |
| DE102004006441A1 (en) | Moulding tool for foam mouldings, comprises cooling channels and/or steam supply lines embedded in the wall of the tool | |
| DE102007017690A1 (en) | Production of large castings comprises controlling temperatures of different areas of mold and core to produce desired structure | |
| DE19707906C2 (en) | Process for the production of hollow metal molds | |
| DE69722047T2 (en) | Process for the production of optical semi-finished products and optical objects by press molding | |
| DE102019123128B4 (en) | 3D screen printing system and 3D screen printing process for producing a shaped body | |
| DE19721595B4 (en) | Material for the direct production of metallic functional patterns | |
| DE10014744A1 (en) | Production of a three-dimensional metallic hollow mold comprises acquiring the geometry data of the mold using suitable computer software, and generating CNC processing data for the high speed cutting of molds | |
| EP2602049B1 (en) | Hybrid construction tools | |
| DE102019002258A1 (en) | Method of manufacturing a molding tool with a 3D printer | |
| DE102020121430A1 (en) | Device and method for the additive manufacturing of a workpiece | |
| WO1998015372A1 (en) | Method and device for making moulds and tools | |
| WO2020048774A1 (en) | Method for producing a model mould core blank, a model mould blank, and a precision casting mould, and a casting method for producing a cast part having a hollow cavity structure | |
| DE4237638A1 (en) | Small vol. prodn. of thermoplastic mouldings with e.g. undercuts - by lost wax type process using tools of two different low melting point alloys and injecting e.g. polyamide into cavity formed by fusion | |
| DE102018124872A1 (en) | Mold system with separable, variable moldings to form a cast object for precision casting | |
| DE10317797B4 (en) | Rapid prototyping process | |
| DE102021119829A1 (en) | hot runner nozzle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8131 | Rejection |