ANALISIS MATERIAL REMOVAL RATE DAN SURFACE ROUGHNESS PADA PROSES SINKER-EDM MENGGUNAKAN ELEKTRODA TEMBAGA: ANALYSIS OF MATERIAL REMOVAL RATE AND PROCESS ON SURFACE ROUGHNESS OF SINKER-EDM USING COPPER ELECTRODE. teknologika 2022, 12 (1), 47-58. https://doi.org/10.51132/teknologika.v12i1.156.