The experimental tool for micro-extrusion of metals

• Autorzy: Piwnik J. , Mogielnicki K. , Gabrylewski M. , Baranowski P.
• Języki publikacji: EN

Abstrakty

EN

In paper the technological tools requirements, used for micro-extrusion of metals in cold and warm conditions are presented. The constructive principles for the micro-tools are also described. The influence of the size effect in a workpiece and a tool top layers roughness form on extrusion processes in microscale are showed. The tool, designed to an experimental verification of the size effect influence, in a tool roughness form, on the metal rod forward extrusion are presented. This tool is made in the form of two halves, joined together by the pegs and screws. It has bored two dies profiles with the same dimensions, the only difference is a degree of the containers roughness. That solution gives a possibility to specify the influence of the tool roughness degree on the extrusion forces, deformation process and a product quality. Described tool was designed in such a way to manufacture it with using conventional machining equipment.

Słowa kluczowe

EN

microforming; microextrusion; size effect; experimental tool

PL

mikroformowanie; mikrowyciskanie; efekt skali; narzędzie doświadczalne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2011
• Tom: Vol. 11, iss. 2 spec.
• Strony: 195--198
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Piwnik J.

• The Department of Production Engineering, Bialystok Technical University – Wiejska street 45C, 15-351 Białystok, Poland; Centralny Ośrodek Badawczo-Rozwojowy Aparatury Badawczej i Dydaktycznej COBRABiD – Łucka street 15, 00-842 Warsaw, Poland

autor

Mogielnicki K.

• The Department of Production Engineering, Bialystok Technical University – Wiejska street 45C, 15-351 Białystok, Poland

autor

Gabrylewski M.

• Centralny Ośrodek Badawczo-Rozwojowy Aparatury Badawczej i Dydaktycznej COBRABiD – Łucka street 15, 00-842 Warsaw, Poland

autor

Baranowski P.

• Centralny Ośrodek Badawczo-Rozwojowy Aparatury Badawczej i Dydaktycznej COBRABiD – Łucka street 15, 00-842 Warsaw, Poland

Bibliografia

• [1] K. Mogielnicki, K. Garbala, J. Piwnik: Overview of Tooling Concept for Microforming, Aparatura Badawcza I Dydaktyczna, 2010, 113-118.
• [2] M. Arentoft, S. Bruschi, A. Ghiotti, N.A. Paldan, J.V. Holstein: Microforming of Lightweight Metals in Warm conditions. Proc. of the 11th ESAFORM, Lyon, 2008.
• [3] J. Piwnik, K. Mogielnicki, K. Garbala: Problems related to micro-extrusion process, Aparatura Badawcza i Dydaktyczna, 2009, 26-31.
• [4] U. Engel, R. Eckstein: Microforming – from basic research to its realization, Journal of Materials Processing Technology, 2002, 125–126.
• [5] F. Vollertsen, H. Schulze Niehoff, Z. Hu: State of the art in microforming, International Journal of Machine Tools & Manufacture, 2006, 1172-1179.
• [6] N. Tiesler: Grundlegende Untersuchungen zum Fließpressen metallischer Kleinstteile, Bamberg, Meisenbach Verlag, 2002.
• [7] N.Tiesler, U. Engel: Microforming – Effects of miniaturisation, Metal Forming 2000, Proceedings of the 8th int. conf. on metal forming, Balkema, Rotterdam, 2000, 355-360.
• [8] F. Vollertsen, Z. Hu, H. Schulze Niehoff, C. Theiler: State of the art in micro forming and investigations into micro deep drawing. Journal of Materials Processing Technology, 2004, 70-79.
• [9] J. Piwnik, K. Mogielnicki: The friction influence on stress in micro extrusion, Archives of Foundry Engineering, 2010, 451-454.
• [10] J. Piwnik, K. Mogielnicki: Deformations in micro extrusion of metals, Archives of Foundry Engineering,