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Polishing

Polishing

Brief description of the main process of PC board processing CuttingChoose tools according to the thickness and precision of PC boards. For thin boards below 3mm, manual cutting scissors or utility knives are sufficient; for boards 3-10mm thick, use electric curve saws, which are suitable for cutting curves; for boards thicker than 10mm, use large table saws. After fixing the board, slowly push the cutting tool along the marked line. When using electric tools, control the speed to prevent the board from overheating and rough cuts.DrillingPrepare a high-speed steel twist drill, grind the top angle to 118°-120°, and select the drill bit according to the hole diameter. Fix the PC board, adjust the drilling machine speed to 800-2000 rpm, mark the drilling position and start the drilling machine, feed slowly first, and increase the speed after accurate positioning. Use compressed air or cooling lubricant to cool down when drilling, and clean up the debris in time to avoid overheating and de…