On the amount of milling machining milling mode
High-speed machining including milling speed milling parameters, milling depth, feed speed or feed per tooth and the amount of overhang milling tools and so on. Factors that affect the amount of high-speed milling very much, the most important match is the relationship between the workpiece material and milling material.
For the mold, the correct selection and optimization of cutting parameters, ensuring high-speed cutting can reach the top of the results, an important part of the machine to avoid chatter. Currently, high-speed machining process parameters are not complete and high-speed cutting database table, not by cutting manual selection. For each tool is also no specific formula to determine the optimal combination of cutting parameters.
In actual production, according to the workpiece material, tool material, process characteristics, by experiment or simulation methods to determine the best cutting speed and feed rate. There are a considerable number of researchers concerned about the amount of high-speed cutting of choice.
High-speed milling machining, should try to use climb milling machining, because when climb milling tool just cut chip thickness of the workpiece to the maximum, and then decreases. At the time milling tool just cut chip thickness workpiece is minimized, then gradually thickening, which increases the friction tool and the workpiece, producing a lot of heat in the blade, so the heat generated in the milling than in down milling many more, greatly increasing the radial force. While in climb milling, the blade main compressive stress, while milling the blade in tensile stress, stress state than the poor, and reduce the life of the tool.
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