Fil diamant vs lame: Test de surface du verre optique
Points clés Tests contrôlés sur 5 le verre SCHOTT B270 de mm montrent qu'une scie à fil diamant atteint Ra 0.18-0.22 micrometers versus Ra 0.55-0.75 for a diamond blade — about 60% lower surface roughness without polishing. Subsurface damage is the decisive gap: the blade generates 3-5 times more micro-cracks, and still shows cracks at 200 micrometers depth where the wire saw shows none — beyond the typical 100-150 micrometer polishing removal depth. Kerf loss is 0.25 mm for the wire versus 0.42 mm for the...