Milling process parameters: PCB shape carbide milling cutter, cutter cutting speed is generally 180 ~ 270m / min. Calculated as follows (for reference only): S = pdn / 1000 (m / min) where: p: PI (3.1415927); d: cutter diameter, mm; n; cutter speed, r / min; and cutting speed match the feed rate. If the feed rate is too low, due to the friction heat to soften or melt the PCB material or charred, plug cutter flutes, cutting impossible. If the feed is too fast, fast cutter wear, bear radial load, so that large knife, poor work quality CNC drilling sieve size inconsistent. How to determine the speed of the feed it? To consider all of the following items: PCB material, thickness, number of blocks per stack diameter iron knives, flutes. Generally based on technical information provided by the vendor tool set, due to the difference between the tool material quality brands and manufacturing processes, the tool parameters are different from different vendors. Features: This machine Maximum drilling diameter of 50mm CNC drilling, general gussets, holes can be drilled on the feet. Located in the bed side table flange CNC drilling, by about two linear guide guided by the servo motor drive by moving the ball screw speed CNC bench drill, double nut after tightening the screw, eliminating the gap, high transmission accuracy . Greatly improving the rigidity and vibration resistance. Countertops are distributed several T-slot for easy workpiece clamping. The Machine has two CNC axes: gantry can be moved and positioned along the bed in the X direction, the two power head gantry mounted on the gantry along the Y direction respectively, movement and positioning of the machine configuration screw, rails, hydraulic parts. electrical components, servo motor, inverter and other for foreign brands, machine reliability can be comparable with imported equipment, less failure. The machine spindle drilling downward stroke over 180mm, so the length of the drill is not restricted, new drill can wear short also available. Drill-down movement of the workpiece is not in contact with fast motion, once contact with the workpiece immediately and automatically become work into speed drill and then automatically and quickly returned, and only returned to the drill tip upwards away from the workpiece, the horizontal movement to drill the next hole , so it saves time. High-speed CNC drilling _ Xin NC Quality trust law (certified) _ Jiangsu CNC drilling by CNC Machinery Co., Ltd. Jinan law Xin. CNC Machinery Co., Ltd. Jinan law Xin (www.jnfxsk.com) Shandong Jinan, CNC machine leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Xin NC leadership in France with the staff warmly welcome all inquiries negotiations to create law Xin NC a better future.