ISSN 1842-3183

 
 
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Volume No. 1,  2006

 

 

 

 

 

 

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Proceedings of the 15th International Conference on Manufacturing Systems – ICMaS

Published by Editura Academiei Române, ISSN 1842-3183

Volume No. 1,  2006

"Politehnica" University of Bucharest, Machine and Manufacturing Systems Department

Bucharest, Romania, 26 – 27 October, 2006

 

pp. 335-338

 

RESEARCH REGARDING THE SUPERFICIAL HARDENING OF TOOLS THROUGH NEW HASTY TREATMENT WITH BORON-CARBON-VANADIUM

 

Dan Dragoş VASILESCU , Ştefan VELICU, Petrică CORĂBIERU, Anişoara CORĂBIERU

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Abstract: The proposed technology presents a level of complexity and novelty represented by the following considerations. The manufacturing of the cold forming tools and the wearing machine parts will be done by replacing the existing classical tools made of carbon steel type OSC10 and alloyed steel type 90VMn20, 205Cr115, with quality carbon steel type OLC 15, and alloyed steel for machines manufacturing type 15Cr9, and 21MoMnCr12. The complexity results from the correlation of the results obtained in accordance with the process entry data (the by-product chemical composition, granular mixture chemical composition, boron-carbon-vanadium paste chemical composition, the determined ratio between the granular  mixture weight in the kiln) and the piece weight as also determined thermo-physically parameters as: temperature, time, electrical resistance, current density, fuel speed and the recordings obtained at the end  of the process (mechanical and structural properties obtained after the thermochemical process in  comparison with the cold forming tools and wearing machine parts obtained as a result of the classical method).

 

Key words: superficial hardening, boron, carbon, vanadium.

 

Authors:

Dan Dragoş VASILESCU, S.C. PROCOMIMPEX S.R.L. Iaşi,

E-mail: procomimpex@catv.embit.ro; oficeprocom@

yahoo.com

Prof. dr. Ştefan VELICU, "Politehnica" University Bucharest,

Romania, E-mail: velstefan@hotmail.com

Petrică CORĂBIERU, S.C. PRESUM PROIECT S.A. Iaşi,

Romania, E-mail: pcorabieru@yahoo.com

Anişoara CORĂBIERU, S.C. PRESUM PROIECT S.A. Iaşi,

Romania, E-mail: acorabieru@yahoo.com

Electronic mail: orgcom@icmas.eu   /   General Information:  http://www.edition2009.icmas.eu/