Although the process of CNC lathe machining and ordinary lathe machining is similar, the CNC lathe service is clamping and completes all the turning procedures continuously and automatically, hence, we should pay attention to the following aspects.

Choose CNC Cutting Dosage Reasonably

For high-efficiency metal cutting, the machined materials, cutting tools, and cutting conditions are the three major elements, which determine the machining time, tool life, and machining quality. An economical and effective machining method must be a reasonable choice of cutting conditions.

Three factors of cutting conditions are cutting speed, feed, and tool damage caused by cutting depth. With the increase in cutting speed, the temperature of the tooltip will rise, resulting in mechanical, chemical, and thermal wear. The increasing cutting speed reduces tool life by 1/2.

The relationship between feed conditions and tool wear occurs in a very small range. But when the feed quantity is large, the cutting temperature rises, and the back wear is large. It has less effect on the tool than the cutting speed. The influence of cutting depth on the tool is not as big as cutting speed and feed, but in the micro-cutting depth, the hardened layer of the cutting material will also affect the life of the tool.

The users should choose the cutting speed according to the material being processed, hardness, cutting state, material type, feed, cutting depth, and so on. The most suitable processing conditions are selected based on these factors. Regular and stable wear to life is the ideal condition. However, in practice, the choice of tool life is related to tool wear, machining size change, surface quality, cutting noise, machining heat, etc. In determining the processing conditions, it is necessary to study according to the actual situation. For difficult-to-work materials such as stainless steel and heat-resistant alloys, coolants or rigid blades can be used.

Choose Cutting Tool Reasonably

When it is precision CNC turning, high strength and good durability of cutting tools should be chosen to meet the large back knife and large feed requirements. When it is rough CNC turning, high precision and good durability of cutting tools should be selected to ensure processing accuracy. In addition, to reduce the time of tool change and facilitate tool alignment, machine clip knives and machine clip blades should be used as far as possible.

Select Fixture Properly

Generally speaking, the universal fixture clamping workpiece should be used as far as possible, and the special fixture should be avoided.

Parts positioning datum has to be overlapped to reduce positioning error.

Determine Machining Route

The machining path is the path and direction of the tool relative to the parts in the process of CNC  lathe processing.

Machining accuracy and surface roughness requirements should be ensured;

The processing route should be shortened as far as possible and reduce the tool's idle travel time.

The Connection Between Processing Route And Processing Allowance

At present, the CNC lathe has not reached the condition of universal use, so, the excess allowance on the blank, especially containing forging and casting cortex allowance should be arranged in ordinary lathe processing. If the CNC lathe must be used for processing, it is necessary to pay attention to the flexible arrangement of the program.

Key Points Of Fixture Installation

At present, the connection between the hydraulic chuck and hydraulic clamping cylinder is realized by pulling the rod. The critical points of the hydraulic chuck clamp are as follows: first, remove the nut on the hydraulic cylinder with the handle, remove the pull tube, pull out from the rear end of the spindle, and then remove the chuck fixing screw with the handle, you can remove the chuck.

The polishing edge of the tool refers to a small section of the blade that is parallel to the tip of the blade. It is mainly used for a second cutting of the blade after cutting, which is equivalent to the finishing process to remove burrs and other scars. The purpose is to improve the surface roughness of the workpiece.