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Talk about the choices lathe cutting quantity

by:SNK     2020-09-01
Talk about the choice of lathe cutting quantity release date: 2019 - 12 - 09 author: click: cutting tool materials mainly include high speed steel, cemented carbide, cubic boron nitride, synthetic diamond and so on. Vapor deposition technology is widely used to improve the cutting tool performance and durability. Modern CNC lathe has been widely used machining carbide tool, and gradually started using cemented carbide cutting tool coating. CNC lathe operator must be a deeper understanding of choice of lathe cutting quantity: CNC CNC lathe factory programming is a process of through the program reflects the programmer intended. How to correctly choose turning amount in parts processing efficiency and accuracy of parts eventually form plays a key role. For rough machining, machining economical choice should be based on turning. For rough machining, should according to the machining precision of parts, especially the surface roughness select cutting quantity. Turning processing used in cutting quantity including: reverse feeding ap, spindle speed or the cutting speed VC (S For a constant linear speed cutting) And VF or feeding f feed speed. These parameters should be in the range of allowable machines of a given option. 1. After ap knife ( The cutting depth) : when the power of rigidity of processing system and the lathe allows, can choose after a large number of cutting on the ruler, to reduce the number of feed and improve production efficiency. At the same time, it can reduce machine stall ( Mainly for screw recoil) 。 The impact on the machining accuracy. Use stepper driver of economical CNC machine tool feed servo system is essential step to avoid excessive step loss. 2. Determine the spindle speed: on a smooth surface rotates the spindle speed of the spindle speed should be according to the selected reaction, feeding and cutting tool durability to choose. Usually, CNC numerical control lathe factory said can according to the empirical formula to calculate. According to production practice experience, you can allow the cutting speed of the machine manual range refer to the manual related to understand the cutting quantity. It is important to note that adopt ac frequency conversion speed adjustment of nc machine tool output torque at low speed is small, so the cutting speed can't too low. In the actual programming, determine the cutting speed VC, can according to the formula n = 1000 n VC/eD to calculate the spindle speed. When the thread cutting CNC system with different spindle speed, spindle speed should be used different spindle speed range. Recommended by the most economical CNC lathe spindle speed scroll mode to n '- 1200 P - k type The initial thread pitch, mm; k - Insurance coefficient, usually for 80. 3. Feed speed directly affects the values of rough machining workbench and turning efficiency. Therefore, on the premise of guarantee the quality of the workbench, should choose high feed rate. According to parts of the surface roughness, cutting tool and workpiece materials, cutting quantity please refer to the manual option.
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