The Study of the Effects of Schema-Based Electrode and the Power Mode on the Precision Manufacture of Titanium Dental Crowns.
Keywords:
electrical discharge machining, the electrode-tool, precision, particle size, roughness, dental crowns, titaniumAbstract
It is study the influence of polarity, schema-based electrodes and mode EDM for precision cutting with obtaining titanium dental implants with thin walls.A dental crown made of titanium alloy VTL received on the bonding wire EDM machine Electronica Smart CNC copper electrodes using as a working fluid, oil, EDM Oil - IPOL SEO 450. As a result of the research it showed that the direct connection of the electrode when cutting titanium much more effective, since the reverse connection of the energy of the current pulse is converted mainly into heat required for melting and erosion of the electrode, while the relative wear of the electrode becomes higher, the intensity of the shock wave gas cavity is significantly reduced and reduces the efficiency of the tool. In the result, it was obtained a dental implant wall thickness 0.336 mm and an accuracy of 0.04 mm. Established that the precision mode of operation at minimum capacity, the use of the method based electrodes taking into account the error on the radius. The particle sizes of the products of erosion are correlated with the roughness parameter RA (the average deviation from the profile). It is established that the production of thin-walled dental crowns made of titanium alloy and method of electro erosive is possible and more effective method compared to casting and machining.
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