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Materia³y proszkowe (porowate)

 


^ Sintering, * Design inSite

 

*       Numerical Simulation and Modelling for the Processes of Magnesium Treatment by Forming

Prof. Dr.-Ing. Eckard Doege

 

*SEI's Powder Metal Products/ProfileSumitomo Electric

produces alloys by the "powder metallurgy"method which is the compaction of several metals into minute powders followed by sintering.

(Conventional alloys are made by melting several metals,and are called "Ingot Metallurgy (IM) Alloys")

Product Process

 

P/M Parts High Performance Powder Metallugy Aluminum Alloys(SUMI-ALTOUGH) heavy alloys

‚d‚Ž‚‡‚‰‚Ž‚…‚…‚’‚‰‚Ž‚‡@‚b‚…‚’‚‚‚‰‚ƒ‚“ Oil Pump Rotors(PARACHOID) elcon

*       SUMITOOL Grade Selection

*       Tool Materials Sumitomo Electric

Variety of Tool Materials

Main Properties of Some Tool Materials

Properties

Diamond

cBN

Cemented Carbide

Cermet

Silicone Nitride

Aliumina

Hardness Hv
(kg/mm2)

10000

5000

1500

1600

1600

2500

Strength (kg/mm2)

1kg/mm2=9.8MPa

---

110

250

200

120

40

 

Synthesis of PCD or cBN TA

The cubic Boron Nitride which has the hardness and thermal conductivity after the diamond has small reactivity with the iron system materials and is more excellent in the chemical and thermal stability than those of the diamond

Product Description

The Cemented carbide is the complex alloy by sintering the carbide particle of 2a, 3a, 4a tribe metal (Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W) of the periodic law table, using the iron tribe metal (Fe, Co, Ni) as the binder. At present, the alloy such as the WC-Co system, WC-TiC-Co system, WC-TiC-Ta (Nb) the C-Co system are used as the materials for the cutting tools. Furthermore, the coating tool that covered with the ceramics such as Ti (C, N), Al2O3 on the suraface of Cementd carbide cutting tool is increasing, as a result that the cutting condition has sped up in recent years, and the use proportion exceeds 50% in the cutting tools.  

 

Generally, TiC-Ni based alloy is called Cermet,which is one of the kind of cemented carbide (a)

a)SEM of Cermet     b)SEM of Silicon Nitride SEM photo of Silicon Nitride

Ceramics They sell mainly the cutting tools of the alumina system and Silicon nitiride (b) system in the ceramic cutting tool market

Ceramic coating >..it becomes possible to make the unique composite material that combines the excellent advantage of the base material and ceramics by Coating of the ceramics (TiN, TiAlN, TiC(TiCN), CrN, SiC, Si3N4, Al2O3).

Challenge to High Speed Cutting *    PapersPublikacje

 

 

*       Proszki Osprey (Osprey metals powder) Click here to enter the Osprey Powders Web Site

 

*       Manufacturing Process of MITSUBISHI CARBIDE

 

  <*ZOOM

·  GA Series

 

Thermal crack resistant
and corrosion resistant applicaion

Shows a superior resistance to thermal crack due to repeated heating and cooling. The series has an excellent resistance to oxidation and corrosion at high temperatures, and is most suitable for hot rolling.

 

 

*       Sintered components

Sintered components

*       Aluminium Powder Metallurgy

prepared by B. Verlinden and L. Froyen, University of Leuven (TALAT, 26 pages, 25 figures)

 

 

*       Proszki (POWDER)

*       The University of Chicago Granular Physics Group

*       Movies of Granular Flows

*       Links to other granular material web pages

From Powder to Component Design

*       Fraunhofer Institute for Ceramic Technologies and Sintered Materials (Dresden):

Tremendous progress with respect to service life and usability of antifriction and friction bearings results from the use of high-strength ceramics made of silicon nitride ( b Si3N4).^

*   Ceramic ball bearings

*        (ANGELUS SANITARY CAN MACHINE COMPANY):

What is the advantage of Ceramic ball bearings?

Ceramic Bearing            Ceramic Bearing Seaming Rolls

 

*       Weichbearbeitung von Siliciumnitrid Strukturkeramik (K. Thomas)

Bauteil in Form eines Lochdornes für das Schrägwalzen von Kupfer

 

*       Keramikeinsatz beim Schmieden

  

 

*       Technical Program 2000 PMP II: Second International Conference onProcessing Materials for Properties (pdf)

 

The Institute for Metal Forming (IMF) @ Lehigh University: Powder Metallurgy (P/M)

 

 

Materia³y piankowe (komórkowe)

 

*       Modelling of solid foams

             Schaum

                                                                                                              Metallschaumzentrum ^

 

 

 

Metal Foam / Porous Metal

http://www.mmc.co.jp/nfac/hpm/okegawa/happou/happou_english.htm

 

*       Metallschaum für die Leichtbautechnik Informationen Überblick:

(http://www.ifam.fhg.de/fhg/ifam/frameindex.html?/fhg/ifam/2801/daten_d.html)

   

Aluminiumprofil (AlMgSi0.5) mit Füllung aus Aluminiumschaum (AlSi6Cu4)

                ausgeschäumte Stahlprofile

Stahlprofil mit Zink-Schaum (links) und Aluminium-Schaum (rechts)^

 

*      Aluminium foam

prepared by Dr - Ing. Catrin Kammer, Goslar (TALAT 24 pages, 16 figures):

Several types of tubes and profiles - filled with aluminium foam (IFAM Germany)

  

Foaming of particle including melts (Alcan/norsk Hydro) ^

 

Foaming of aluminium with the ALPORAS-Technology (Shinko Wire, Japan)

alu

Production of complex aluminium foam parts                     Laser welding set-up

Prototype AFB /Aluminium Foam Body, Karmann, Germany)

 

*       X-ray radioscopic images of foaming sandwich material by Fraunhofer-Institute IFAM and IZFP:

*       ON THE MECHANICAL PERFORMANCE OF CLOSED CELL Al ALLOY FOAMS:

 

 

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Aktualizowano: 2003-04-01