CNC lathe has a wide range of processing process performance, can process internal and external cylindrical surface, conical surface, arc surface and a variety of thread, groove, worm and other complex processes, with linear interpolation, arc interpolation compensation functions, and in the mass production of complex parts has played a good economic benefits.CNC lathe in the choice of cutting quantity, must fully consider the factors affecting cutting, the correct choice of cutting conditions, determine the reasonable cutting quantity, can effectively improve the quality and output of mechanical processing.
Generally influencing the cutting efficiency of CNC lathe conditions include: machine bed, tool and workpiece rigidity;Cutting speed, cutting depth, cutting feed rate;Workpiece precision and surface roughness;Tool life expectancy and maximum productivity;Type of cutting fluid and cooling method;Hardness and heat treatment of workpiece material;Number of workpieces and machine life.
CNC lathe cutting speed directly affects the cutting efficiency.If the cutting speed is too small, the cutting time will be longer, the tool can not play its role;If the cutting speed is too fast, although the cutting time can be shortened, but the tool is easy to produce high heat, affecting the tool life.
The cutting efficiency of CNC lathe is affected by human factors, environmental factors and the machine tool itself.The following analysis of a number of factors in the cutting volume and the impact of the tool on the CNC lathe:
Reasonable cutting parameters can improve the efficiency of CNC lathe.When cutting speed increases 10 times, feed speed increases 20 times, far beyond the traditional cutting area, the cutting mechanism has undergone fundamental changes.The results are: the unit power of the metal cutting rate increased by 30-40%, cutting force reduced by 30%, the cutting life of the tool increased by 70%, greatly reduced the cutting heat left on the workpiece, cutting vibration almost disappeared;Cutting has taken place a qualitative leap.According to the current CNC lathe situation, increase the feed per tooth, improve productivity and tool life.A tool is to a CNC lathe what a wheel is to a car.The material of manufacturing tool must have very high temperature hardness and wear resistance, necessary bending strength, impact toughness and chemical inertness, good technology (cutting, forging and heat treatment, etc.), and not easy to deformation.A good tool can improve the efficiency of machining and the precision of cutting workpiece.Other factors such as power supply, familiar operation, reasonable materials and other factors will affect the CNC lathe processing.