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Analysis on the Principle of Cutting Quantity of CNC Lathe
From:Taian Haishu Machinery Co.,Ltd. Updatetime:2017-3-2 20:54:32 Views:
Instrumentation CNC lathe three elements of the basic principles; according to the cutting requirements to determine the amount of back to eat knife ap, and then look at the table to get the amount of feed, and then through the table throug

Analysis on the Principle of Cutting Quantity of CNC Lathe
Instrumentation CNC lathe three elements of the basic principles; according to the cutting requirements to determine the amount of back to eat knife ap, and then look at the table to get the amount of feed, and then through the table through the formula to calculate the main cutting speed U.
In many cases we can use empirical data to determine the value of these three elements.
2. Cutting amount selection method
Practice has proved that the choice of reasonable cutting amount and instrumentation CNC lathes, tools, workpieces and technology and other factors. Reasonable choice of processing methods are as follows:
Roughing, the main to ensure a higher production efficiency, it should choose a larger amount of back to eat knife a. , The larger the feed rate, the cutting speed U selects the medium and low speed.
Finishing, the main parts to ensure the size and surface accuracy requirements, so choose a smaller amount of back to eat knife ap, a smaller feed. Cutting speed U selects higher speed.
Roughing, the general need to give full play to the potential of CNC lathe and cutting tool cutting capacity. CNC lathe semi-finishing and finishing, should focus on how to ensure the quality of processing, and on this basis to maximize productivity. CNC lathe manufacturers in the choice of cutting the amount should ensure that the tool can be processed to complete a part or to ensure that the durability of the tool is not less than a work class, at least not less than half of the working hours of the work class. CNC lathe factory specific value should be in accordance with the provisions of the machine tool manual, tool durability and practical experience selected.
(1) the choice of the knife. The choice of the amount of kneading knife to be based on machine tools, fixtures, tools and the stiffness of the workpiece and the machine to determine the power. In the case of the process system allows, as much as possible to choose a larger amount of back to eat knife. Except for the remainder of the subsequent process, the rest of the roughing allowance is cut as much as possible to minimize the number of passes.
Usually on a medium power machine, the roughing is 8-10 mm (unilateral). CNC lathe semi-finished back to eat knife for the amount of 0.5-5 mm; finishing when the amount of back to eat knife 0 2-1.5 mm.
(2) the amount of feed. Feed amount refers to the direction of the tool in the unit time. CNC lathe factory moving distance. The principle of determining the feed rate is that when the quality requirements of the workpiece are guaranteed, a higher feed rate can be selected to increase productivity. CNC lathe cutting, turning deep hole or fine car, you should choose a lower feed rate. The feed rate should be compatible with the spindle speed and the amount of knife. Roughing, the choice of feed rate is limited by cutting force.

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