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Percentage of harmful discharges for surface current density monitoring in electrical discharge machining process
Blatnik, Oki (Avtor), Valentinčič, Joško (Avtor), Junkar, Mihael (Avtor)

URLURL - Predstavitvena datoteka, za dostop obiščite http://dx.doi.org/10.1243/09544054JEM816 Povezava se odpre v novem oknu

Izvleček
Electrical discharge machining (EDM) is performed in the gap between the workpiece (usually the anode) and the electrode (usually the cathode). The gapis filled with a dielectric and the pulses generated by a special generatorcause an electrical breakdown in the gap. A breakdown discharge occurs which removes material from the workpiece. The EDM process has been used for more than 50 years, but the influence of the surface current density on the process stability is not well understood. The surface current density is very important in the case of the machining of rough surfaces where the highest material removal rate (MRR) is preferred. For a given eroding surface there exists an optimal electrical current at which the highest MRR is achieved. It is reported in the literature that the percentage of the discharges that are harmful to the EDM process depends on the surface current density in the gap. Thus, experiments were performed to find out the possibility of using the percentage of harmful discharges to monitor the surface current density of the EDM process.

Jezik:Angleški jezik
Ključne besede:elektroerozivne obdelave, obdelave površin, grobe obdelave, električni tok, gostota toka, stabilnost procesov, obraba orodij, electrical discharge machining process, spark erosion, discrimination, surface current density, rough machining, machining surface, process stability, tool wear
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2007
Št. strani:str. 1677-1684
Številčenje:Letn. 221, št. 12
UDK:621.9.048
ISSN pri članku:0954-4054
COBISS.SI-ID:10335515 Povezava se odpre v novem oknu
Število ogledov:447
Število prenosov:293
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
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Gradivo je del revije

Naslov:Proceedings of the Institution of Mechanical Engineers
Skrajšan naslov:Proc. Inst. Mech. Eng., B J. eng. manuf.
Založnik:Mechanical Engineering Publications
ISSN:0954-4054
COBISS.SI-ID:26744064 Povezava se odpre v novem oknu

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