ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The flow field characteristics have a significant effect on the machining stability inhigh-speed small hole EDM drilling. Thus, Lagrangian discrete phase model (DPM) has beendeveloped to simulate the gap liquid-solid two-phase flow field. The numerical calculation is basedon the standard k-ε turbulent model, and the SIMPLEC algorithm is used in the simulation. All thegoverning equations are solved by software Fluent 6.2. Through numerical simulation, the pressuredistribution, the velocity distribution of the dielectric liquid, traces of debris particles, and the debrisparticle concentration were obtained. The flow field characteristics under different pressures anddrilling depths were obtained through simulations. Finally, experiments were carried out toinvestigate the effects of the flush velocity at exit obtained through simulation on material removalrate (MRR)
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/41/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.53-54.409.pdf
Permalink