ITRM20000649A1 - COMPOSITION BASED ON NICKEL FOR ELEMENTS WITH HIGH THERMAL RESISTANCE, IN PARTICULAR FOR TOOLS FOR HOT DEFORMATION PROCESSES AND - Google Patents
COMPOSITION BASED ON NICKEL FOR ELEMENTS WITH HIGH THERMAL RESISTANCE, IN PARTICULAR FOR TOOLS FOR HOT DEFORMATION PROCESSES AND Download PDFInfo
- Publication number
- ITRM20000649A1 ITRM20000649A1 IT2000RM000649A ITRM20000649A ITRM20000649A1 IT RM20000649 A1 ITRM20000649 A1 IT RM20000649A1 IT 2000RM000649 A IT2000RM000649 A IT 2000RM000649A IT RM20000649 A ITRM20000649 A IT RM20000649A IT RM20000649 A1 ITRM20000649 A1 IT RM20000649A1
- Authority
- IT
- Italy
- Prior art keywords
- nickel
- composition
- tools
- content
- thermal resistance
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 5
- 239000010937 tungsten Substances 0.000 claims abstract description 5
- 239000011651 chromium Substances 0.000 claims description 6
- 238000005242 forging Methods 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 4
- 239000011572 manganese Substances 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012761 high-performance material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
- Powder Metallurgy (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Ceramic Products (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
Description
DESCRIZIONE dell'invenzione industriale dal titolo: "Composizione a base di nickel per elementi ad elevata resistenza termica, in particolare per utensili per processi di deformazione a caldo e per lavorazioni ad alta temperatura" DESCRIPTION of the industrial invention entitled: "Nickel-based composition for elements with high thermal resistance, in particular for tools for hot deformation processes and for high temperature machining"
DESCRIZIONE DESCRIPTION
La presente invenzione ha come oggetto una composizione a base di nickel per elementi ad elevata resistenza termica, in particolare per utensili per processi di deformazione a caldo e per lavorazioni ad alta temperatura. In particolare, tale composizione è adatta alla formazione di utensili atti a lavorare in condizioni di estrema gravosità dal punto di vista termico, dovendo essere sottoposti a cicli termici con grandi escursioni termiche. The present invention relates to a nickel-based composition for elements with high thermal resistance, in particular for tools for hot deformation processes and for high temperature machining. In particular, this composition is suitable for forming tools suitable for working in conditions of extreme thermal severity, having to be subjected to thermal cycles with large thermal excursions.
Esempi di utensile di questo tipo sono rappresentati da stampi, utensili per asportazione di truciolo e simili. Examples of tools of this type are represented by molds, tools for chip removal and the like.
Un settore dove è richiesta una composizione ad elevate prestazioni, accoppiate con una buona lavorabilità alle macchine utensili, è rappresentata dalla forgiatura, nella quale stampo e pezzo forgiato hanno la medesima temperatura. A sector where a high performance composition is required, coupled with good machinability to machine tools, is represented by forging, in which the mold and forged piece have the same temperature.
Questa tecnica permette di realizzare a caldo prodotti contraddistinti da bassi spessori e volumi, ma con proprietà meccaniche stabili ed uniformi . This technique allows to produce hot products characterized by low thicknesses and volumes, but with stable and uniform mechanical properties.
In vari settori tecnologici, utensili e stampi realizzati in materiali ad elevate prestazioni permettono lavorazioni più rapide e precise. Nel caso degli stampi, un complesso stampo-portastampo a bassa usura che soffre di distorsioni termiche e meccaniche minime può accelerare considerevolmente i relativi processi produttivi, rendendo non necessari gravosi interventi di finitura come molatura, limatura ecc. In various technological sectors, tools and molds made of high-performance materials allow faster and more precise processing. In the case of molds, a low-wear mold-holder complex that suffers from minimal thermal and mechanical distortions can considerably accelerate the related production processes, making heavy finishing operations such as grinding, filing, etc. unnecessary.
Inoltre viene aumentata la precisione di riproduzione anche dopo un elevato numero di utilizzi. Questi vantaggi diventano particolarmente importanti nel caso di produzioni su larga scala. In addition, the accuracy of reproduction is increased even after a large number of uses. These advantages become particularly important in the case of large-scale productions.
Un esempio di composizione per utensili e stampi come sopra citati è descritta nel brevetto USA NO. 5,505,798 An example of composition for tools and molds as mentioned above is described in US patent NO. 5,505,798
Tra le composizioni note, spiccano quelle ad elevato tenore di Nickel (si veda " Development of a Die Material for Isothermal Porging of Superalloys in air" , Ohno, Watanabe, Nonomura, 110th ISIJ Meeting, October 1985) ma le prestazioni ottenute non sono ancora soddisfacenti. Among the known compositions, those with a high Nickel content stand out (see "Development of a Die Material for Isothermal Porging of Superalloys in air", Ohno, Watanabe, Nonomura, 110th ISIJ Meeting, October 1985) but the performances obtained are not yet satisfactory.
Un ulteriore esempio di composizione a base di Nickel è rappresentato dal brevetto USA No. A further example of a Nickel-based composition is represented by the US patent No.
5,538,683 5,538,683
Il problema tecnico che è alla base della presente invenzione è di fornire una composizione a base di nickel per elementi ad elevata resistenza che consenta di ottenere migliori prestazioni, con riferimento alla tecnica nota. The technical problem underlying the present invention is to provide a nickel-based composition for elements with high resistance which allows to obtain better performances, with reference to the known art.
Tale problema viene risolto da una composizione per elementi ad elevata resistenza termica, in particolare per utensili per processi di deformazione a caldo e per lavorazioni ad alta temperatura, che si caratterizza per il fatto di comprendere: un contenuto di nickel (Ni) compreso tra 57,0% e 62,0%; un contenuto massimo di tungsteno (W) di 10,0%; ed un contenuto massimo di ferro (Fe) di 1,5%. This problem is solved by a composition for elements with high thermal resistance, in particular for tools for hot deformation processes and for high temperature machining, which is characterized in that it comprises: a nickel (Ni) content between 57 .0% and 62.0%; a maximum content of tungsten (W) of 10.0%; and a maximum iron (Fe) content of 1.5%.
La presente invenzione si riferisce altresì ad un utensile formato con la composizione come sopra definita, ed in particolare ad uno stampo per forgiatura siffatto. The present invention also relates to a tool formed with the composition as defined above, and in particular to such a forging die.
Nel seguito verrà fatto riferimento ad alcuni esempi applicativi preferiti della composizione, a titolo esemplificativo e non limitativo, ed ai disegni allegati, in cui: In the following, reference will be made to some preferred application examples of the composition, by way of non-limiting example, and to the attached drawings, in which:
* la figura 1 mostra una sezione schematica di uno complesso stampo-portastampo prodotto con la composizione secondo l'invenzione; e ;* la figura 2 mostra una vista schematica in alzato di una pressa che impiega lo stampo di figura 1. * figure 1 shows a schematic section of a mold-holder assembly produced with the composition according to the invention; and; * figure 2 shows a schematic elevation view of a press using the mold of figure 1.
Nella figura 1, uno stampo del tipo per forgiatura è indicato con 1. In Figure 1, a forging-type die is indicated with 1.
Uno stampo di questo tipo, se impiegato per la fabbricazione di pezzi metallici, deve poter essere sottoposto ad elevatissimi riscaldamenti fino anche a il00°C ed oltre, per essere poi raffreddato con un controllo ottimale delle deformazioni termiche. A mold of this type, if used for the manufacture of metal parts, must be able to be subjected to very high heating up to up to 100 ° C and beyond, to be then cooled with an optimal control of thermal deformations.
Nel caso di pezzi plastici le temperature sono inferiori ma le condizioni di lavorazioni sono egualmente gravose, anche in considerazione del fatto che per questo tipo di pezzi viene attesa un'elevata velocità di produzione, un'altissima precisione a volte tale da non richiedere ulteriori operazioni di finitura. In the case of plastic pieces the temperatures are lower but the processing conditions are equally demanding, also in consideration of the fact that a high production speed is expected for this type of pieces, a very high precision sometimes such as not to require further operations. finishing.
Nel presente esempio di realizzazione, come mostrato in figura 1 uno stampo 1 comprende un controstampo superiore (maschio) 2, alloggiato in un opportuno portastampo 3, ed un portastampo inferiore 4, che alloggia una matrice (femmina) 5. Attraverso la matrice 5 sono praticati due canali guida 6, per l'inserimento di attrezzi estrattori, ed almeno un canale di iniezione 7 dal profilo divergente verso l'interno della matrice 5. In the present embodiment, as shown in Figure 1, a mold 1 comprises an upper (male) counter-mold 2, housed in a suitable mold-holder 3, and a lower mold-holder 4, which houses a (female) die 5. Through the die 5 are two guide channels 6 are made, for the insertion of extractor tools, and at least one injection channel 7 with a profile diverging towards the inside of the die 5.
Controstampo 2 e matrice 5 sono connessi mediante mezzi di fissaggio del tipo a vite (non mostrati in figura) e spine di centraggio 8. Counter-mold 2 and die 5 are connected by means of fixing means of the screw type (not shown in the figure) and centering pins 8.
L'intero complesso sopra descritto viene impiegato in una pressa 10 del tipo rappresentato in figura 2, munita di opportuni mezzi pressori e di sollevamento 11 atti a realizzare l'adeguata pressione all'interno dello stampo 1, durante la fase di iniezione. The entire assembly described above is used in a press 10 of the type shown in Figure 2, equipped with suitable pressing and lifting means 11 suitable for achieving adequate pressure inside the mold 1, during the injection phase.
I mezzi di regolazione, di raffreddamento e di iniezione della pressa 11 sono del tipo convenzionali e non vengono ulteriormente descritti. The adjustment, cooling and injection means of the press 11 are of the conventional type and are not further described.
La matrice 5, ovvero quella parte di stampo 1 che contiene il materiale iniettato a caldo da stampare, è realizzato con una composizione che, nella sua forma più generale, comprende: un contenuto di nickel (Ni) compreso tra 57,0% e 62,0%; un contenuto massimo di tungsteno (W) di 10,0%; ed un contenuto massimo di ferro (Fé) di 1,5%. The matrix 5, that is the part of the mold 1 that contains the hot injected material to be molded, is made with a composition which, in its most general form, includes: a nickel (Ni) content between 57.0% and 62 .0%; a maximum content of tungsten (W) of 10.0%; and a maximum iron content (Fé) of 1.5%.
Secondo una forma preferita della composizione, essa ha un contenuto di cromo (Cr) superiore al 6%. Inoltre, detta composizione comprende manganese (Mn), silicio (Si), carbonio (C), e molibdeno (Mo). According to a preferred form of the composition, it has a chromium (Cr) content higher than 6%. Furthermore, said composition includes manganese (Mn), silicon (Si), carbon (C), and molybdenum (Mo).
Verranno esposti in appresso due esempi di applicazione della composizione sopra descritta, ovviamente con intento esplicativo e non limitativo. Two examples of application of the composition described above will be set out below, obviously with an explanatory and non-limiting intent.
Esempio 1 Example 1
La composizione descritta nel presente esempio viene utilizzata allo scopo di ottenere un materiale di elevata purezza, con una struttura molto affinata, e con proprietà isotropiche apprezzabili, proprietà che sono particolarmente utili negli stampi soggetti a notevoli sollecitazioni meccaniche ed in particolare a fatica termica (ad esempio: stampi per pressofusione, stampi per stampaggio a caldo e matrici per estrusione alluminio e leghe di rame). The composition described in the present example is used in order to obtain a material of high purity, with a very refined structure, and with appreciable isotropic properties, properties which are particularly useful in molds subjected to considerable mechanical stresses and in particular to thermal fatigue (for example example: molds for die casting, molds for hot forging and dies for extrusion of aluminum and copper alloys).
Esempio 2 Example 2
La composizione descritta nel presente esempio viene utilizzata allo scopo di ottenere un materiale che consente un ridotto coefficiente di attrito, evitando anche deformazioni e stress durante l'estrazione, in particolare riducendo l'attrito di scivolamento, importante per un facile riempimento delle cavità anche a basse temperature e con bassa pressione, e per un'estrazione anticipata e più facile dopo l'avvenuta solidificazione . The composition described in the present example is used in order to obtain a material that allows a reduced coefficient of friction, also avoiding deformations and stress during extraction, in particular by reducing the sliding friction, which is important for easy filling of the cavities even at low temperatures and low pressure, and for earlier and easier extraction after solidification has taken place.
Questo implica una riduzione del ciclo di stampaggio, e l'ottenimento di un incremento della qualità ed un aumento dell'intervallo di manutenzione . This implies a reduction of the molding cycle, and the achievement of an increase in quality and an increase in the maintenance interval.
Alla sopra descritta composizione un tecnico del ramo, allo scopo di soddisfare ulteriori e contingenti esigenze, potrà apportare numerose ulteriori modifiche e varianti, tutte peraltro comprese nell'ambito di protezione della presente invenzione, quale definito dalle rivendicazioni allegate . A person skilled in the art, in order to satisfy further and contingent needs, may make numerous further modifications and variations to the composition described above, all of which however fall within the scope of protection of the present invention, as defined by the attached claims.
Claims (6)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2000RM000649A IT1316260B1 (en) | 2000-12-07 | 2000-12-07 | COMPOSITION BASED ON NICKEL FOR ELEMENTS WITH HIGH THERMAL RESISTANCE, IN PARTICULAR FOR TOOLS FOR DEFORMATION PROCESSES A |
| EP01999681A EP1339886B1 (en) | 2000-12-07 | 2001-12-07 | Nickel-based alloy composition for high thermal resistance elements, in particular for hot deformation process tools and for high temperature working |
| AT01999681T ATE270350T1 (en) | 2000-12-07 | 2001-12-07 | NICKEL-BASED ALLOY FOR HIGH TEMPERATURE RESISTANT ELEMENTS, ESPECIALLY FOR HOT FORMING TOOLS AND HIGH TEMPERATURE PROCESSING |
| AU2002217436A AU2002217436A1 (en) | 2000-12-07 | 2001-12-07 | Nickel-based alloy composition for high thermal resistance elements, in particular for hot deformation process tools and for high temperature working |
| DE60104142T DE60104142D1 (en) | 2000-12-07 | 2001-12-07 | NICKEL BASED ALLOY FOR HIGH-TEMPERATURE-RESISTANT ELEMENTS, ESPECIALLY FOR HOT-DEFORMING TOOLS AND HIGH-TEMPERATURE PROCESSING |
| PCT/IT2001/000621 WO2002046485A1 (en) | 2000-12-07 | 2001-12-07 | Nickel-based alloy composition for high thermal resistance elements, in particular for hot deformation process tools and for high temperature working |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2000RM000649A IT1316260B1 (en) | 2000-12-07 | 2000-12-07 | COMPOSITION BASED ON NICKEL FOR ELEMENTS WITH HIGH THERMAL RESISTANCE, IN PARTICULAR FOR TOOLS FOR DEFORMATION PROCESSES A |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ITRM20000649A0 ITRM20000649A0 (en) | 2000-12-07 |
| ITRM20000649A1 true ITRM20000649A1 (en) | 2002-06-07 |
| IT1316260B1 IT1316260B1 (en) | 2003-04-03 |
Family
ID=11455042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT2000RM000649A IT1316260B1 (en) | 2000-12-07 | 2000-12-07 | COMPOSITION BASED ON NICKEL FOR ELEMENTS WITH HIGH THERMAL RESISTANCE, IN PARTICULAR FOR TOOLS FOR DEFORMATION PROCESSES A |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1339886B1 (en) |
| AT (1) | ATE270350T1 (en) |
| AU (1) | AU2002217436A1 (en) |
| DE (1) | DE60104142D1 (en) |
| IT (1) | IT1316260B1 (en) |
| WO (1) | WO2002046485A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10354434B4 (en) * | 2003-11-21 | 2006-03-02 | Daimlerchrysler Ag | Tool for the production of workpieces |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE788719A (en) * | 1971-09-13 | 1973-01-02 | Cabot Corp | NICKEL-BASED ALLOY RESISTANT TO HIGH TEMPERATURES AND THERMALLY STABLE OXIDIZATION |
| US3880436A (en) * | 1973-07-05 | 1975-04-29 | Rucker Co | Ram block |
| JPH03257131A (en) * | 1990-03-07 | 1991-11-15 | Mitsubishi Materials Corp | Cutlery material made of ni-based alloy precipitation hardened with intermetallic compound and production thereof |
| DE69202488T2 (en) * | 1991-02-18 | 1995-11-23 | Mitsubishi Materials Corp | Process for the production of cutting material with improved toughness. |
| JPH083665A (en) * | 1994-06-20 | 1996-01-09 | Mitsubishi Materials Corp | Nickel-base superalloy for die excellent in oxidation resistance and high temperature strength |
| US5759305A (en) * | 1996-02-07 | 1998-06-02 | General Electric Company | Grain size control in nickel base superalloys |
| JP3542702B2 (en) * | 1997-07-30 | 2004-07-14 | 株式会社エヌゼットケイ | Valve stem for diesel engine |
-
2000
- 2000-12-07 IT IT2000RM000649A patent/IT1316260B1/en active
-
2001
- 2001-12-07 EP EP01999681A patent/EP1339886B1/en not_active Expired - Lifetime
- 2001-12-07 WO PCT/IT2001/000621 patent/WO2002046485A1/en not_active Application Discontinuation
- 2001-12-07 AT AT01999681T patent/ATE270350T1/en not_active IP Right Cessation
- 2001-12-07 DE DE60104142T patent/DE60104142D1/en not_active Expired - Lifetime
- 2001-12-07 AU AU2002217436A patent/AU2002217436A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| ATE270350T1 (en) | 2004-07-15 |
| ITRM20000649A0 (en) | 2000-12-07 |
| DE60104142D1 (en) | 2004-08-05 |
| IT1316260B1 (en) | 2003-04-03 |
| EP1339886B1 (en) | 2004-06-30 |
| EP1339886A1 (en) | 2003-09-03 |
| WO2002046485A1 (en) | 2002-06-13 |
| AU2002217436A1 (en) | 2002-06-18 |
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