| dc.description.abstract | This study aims to explore the application of Electrochemical Discharge
Machining (ECDM) combined with Computer Numerical Control (CNC)
assistance and creep-feed technology in the machining of quartz glass.
Traditional ECDM uses a layer-by-layer machining approach, but this study
attempts to employ a creep-feed three-axis synchronized method to directly
machine straight grooves. A stepped sheet tungsten carbide electrode is used
to machine quartz glass with a thickness of 2 mm.
The primary objective of this research is to analyze the effects of
various machining parameters—such as machining voltage, electrolyte
concentration, initial gap, and feed rate—on the surface roughness, groove
morphology, electrode wear, and material removal rate of quartz glass.
Detailed observations are conducted, and optimal machining parameters are
identified based on experimental results.
ECDM utilizes the discharge action between the electrolyte and the
electrode to achieve effective machining of quartz glass. Experimental
results show that machining voltage significantly affects surface roughness,
the initial gap is closely related to the forming depth of the groove, and
electrolyte concentration has a significant impact on groove morphology.
Meanwhile, feed rate influences machining time and groove expansion.
After optimizing the machining parameters, the resulting groove
dimensions are as follows: groove width of 2.804 mm, groove length of
1.172 mm, forming depth of 0.071 mm, surface roughness of 1.987 μm, and
material removal rate of 0.00065 g/min. Using the creep-feed ECDM method,
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the material removal rate increased to 0.00082 g/min, representing a 17%
improvement compared to the layer-by-layer ECDM method. | en_US |