DE4204422A1 - Mfr. of injection moulding or pressure die-casting moulds - from ceramic inserts cast from a pattern - Google Patents

Mfr. of injection moulding or pressure die-casting moulds - from ceramic inserts cast from a pattern

Info

Publication number
DE4204422A1
DE4204422A1 DE19924204422 DE4204422A DE4204422A1 DE 4204422 A1 DE4204422 A1 DE 4204422A1 DE 19924204422 DE19924204422 DE 19924204422 DE 4204422 A DE4204422 A DE 4204422A DE 4204422 A1 DE4204422 A1 DE 4204422A1
Authority
DE
Germany
Prior art keywords
pressure die
pattern
injection moulding
mfr
casting moulds
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.)
Withdrawn
Application number
DE19924204422
Other languages
German (de)
Inventor
Alfred Eigen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19924204422 priority Critical patent/DE4204422A1/en
Publication of DE4204422A1 publication Critical patent/DE4204422A1/en
Withdrawn legal-status Critical Current

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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
    • 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
    • B22D17/2209—Selection of die materials
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2909/00—Use of inorganic materials not provided for in groups B29K2803/00 - B29K2807/00, as mould material
    • B29K2909/02—Ceramics

Abstract

Injection moulding and pressure die-casting moulds are mfd. by a method in which the mould cavity is produced by producing single or multi-part inserts from a ceramic material which is used to take a cast from a pattern. the insert is fired and put in the injection a pressure die-casting mould. ADVANTAGE - The moulds are cost effective and have relatively long life.

Description

Die Erfindung betrifft ein Verfahren zur schnellen und kostengünstigen Herstellung von standfesten Spritzguß- und Druckgußformen, im Besonderen für Teile mit Freiformoberflächen. Bei Klein- oder Nullserien sind während der Erprobungsphase kostenaufwendige Spritz- bzw. Druckgußformen aus wirtschaftlichen Gründen nicht vertretbar, hauptsächlich dann, wenn noch nicht feststeht, ob das in dieser Erprobungsphase eingesetzte Teil ohne weitere Änderungen in der späteren Fertigung einsetzbar ist.The invention relates to a method for rapid and inexpensive manufacture of stable injection molding and Die casting molds, especially for parts with free-form surfaces. Small or zero series are during the testing phase costly injection or die casting molds from economical Unreasonable reasons, mainly if not yet it is certain whether the part used in this test phase Can be used in subsequent production without further changes is.

Zur Herstellung von Urmodellen bietet sich bei auf CAD- konstruierten Teilen besonders das Stereolithographieverfahren oder andere CAD-gestützte Verfahren des Rapid Prototyping an.For the production of master models, on CAD constructed parts especially the stereolithography process or other CAD-based methods of rapid prototyping.

Aufgabe der Erfindung ist die kostengünstige Anfertigung von Spritzguß- und Druckgußformen, die eine relativ hohe Standfestigkeit aufweisen und kostengünstig zu erstellen sind.The object of the invention is the inexpensive manufacture of Injection molding and die casting molds, which are relatively high Have stability and are inexpensive to create.

Diese Aufgabe wird erfindungsgemäß durch den kennzeichnenden Teil des Patentanspruches 1 gelöst.This object is achieved by the characterizing Part of claim 1 solved.

In weiterer Ausgestaltung der Erfindung wird vorgeschlagen, die Formkavität durch das Abformen eines Modells in einem keramischen Werkstoff zu erzeugen.In a further embodiment of the invention it is proposed that Mold cavity by molding a model in one to produce ceramic material.

Der Einsatz wird nach dem Abformen des Modells gebrannt und in die Spritzguß- bzw. Druckgußform eingesetzt. The insert is fired and molded after the model has been molded the injection or die casting mold used.  

Vorteilhafterweise werden bei der Modellierung auch die erforderlichen Angußkanäle, Auswerfer, Losteile bzw. falls erforderlich Entlüftungskanäle abgeformt.Advantageously, the required sprue channels, ejector, loose parts or if Required ventilation channels molded.

Dieses Verfahren ermöglicht durch den geringen Zeitaufwand für die Herstellung und durch die Anwendung preisgünstiger Werkstoffe nicht nur die kostengünstige Herstellung von Spritzguß- und Druckgußformen, sondern auch Herstellung derartiger Formen mit hoher Standfestigkeit und Maßgenauigkeit.This procedure enables due to the short expenditure of time cheaper to manufacture and use Materials not only the inexpensive manufacture of Injection molding and die casting molds, but also manufacturing such shapes with high stability and dimensional accuracy.

Claims (2)

1. Verfahren zur Herstellung von Spritzguß- und Druckgußformen, dadurch gekennzeichnet, daß der die Formkavität für das zu erzeugende Teil bildende ein- oder mehrteilige Formeneinsatz der Spritzguß- oder Druckgußform aus einem keramischen Werkstoff gefertigt ist.1. A process for the production of injection molds and die-casting molds, characterized in that the one-piece or multi-part mold insert of the injection mold or die-casting mold forming the mold cavity for the part to be produced is made of a ceramic material. 2. Verfahren zur Herstellung von Spritzguß- und Druckgußformen nach Anspruch 1, dadurch gekennzeichnet, daß die Formkavität durch das Abformen eines Modells in dem keramischen Formstoff des Formeneinsatzes erzeugt ist.2. Process for the production of injection and die casting molds according to claim 1, characterized, that the mold cavity by molding a model in the ceramic molding material of the mold insert is produced.
DE19924204422 1992-02-14 1992-02-14 Mfr. of injection moulding or pressure die-casting moulds - from ceramic inserts cast from a pattern Withdrawn DE4204422A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19924204422 DE4204422A1 (en) 1992-02-14 1992-02-14 Mfr. of injection moulding or pressure die-casting moulds - from ceramic inserts cast from a pattern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19924204422 DE4204422A1 (en) 1992-02-14 1992-02-14 Mfr. of injection moulding or pressure die-casting moulds - from ceramic inserts cast from a pattern

Publications (1)

Publication Number Publication Date
DE4204422A1 true DE4204422A1 (en) 1993-08-19

Family

ID=6451710

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19924204422 Withdrawn DE4204422A1 (en) 1992-02-14 1992-02-14 Mfr. of injection moulding or pressure die-casting moulds - from ceramic inserts cast from a pattern

Country Status (1)

Country Link
DE (1) DE4204422A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4418466A1 (en) * 1994-05-27 1995-12-07 Florian Dr Ing Wendt Rapid mfr. of sand moulds and cores used in foundries
US6155331A (en) * 1994-05-27 2000-12-05 Eos Gmbh Electro Optical Systems Method for use in casting technology

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4418466A1 (en) * 1994-05-27 1995-12-07 Florian Dr Ing Wendt Rapid mfr. of sand moulds and cores used in foundries
US6155331A (en) * 1994-05-27 2000-12-05 Eos Gmbh Electro Optical Systems Method for use in casting technology
DE4418466C2 (en) * 1994-05-27 2001-02-22 Florian Wendt Process for the production of three-dimensional molds from curable molding material

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