Method of cutting force prediction and temperature prediction for end-milling cutting

Abstract

The invention discloses a method of cutting force prediction and temperature prediction for end-milling cutting, the method development of the cutting force prediction is based on a milling forces prediction model of average cutting forces and a milling forces prediction model of bevel angle cutting mechanism and is characterized by performing regression calculating on the two model parameters, predicting transient cutting force, performing comparative analysis with test data, and verifying established single-tooth and multi-teeth cutting force models; the method of cutting force temperature prediction establishes a temperature field solution model of a limited long-line heat source of space optional positions and a temperature field solution model of a limited long-rotation movement line heat source of space optional positions; by means of a limited element simulation method, an embedding semi-artificial thermocouple method is put forward, and by carrying out high speed end-milling cutting temperature field distribution measurement, verification and error analysis are performed on a limited element simulation result and a theoretical calculation result. The method of the cutting force prediction and the temperature prediction of the end-milling cutting has the advantages that the method is simple, operation is easy, reference foundation is provided for end-milling cutting technology, and the method is more beneficial to production.

Description

technical field [0001] The invention belongs to the technical field of end milling, and in particular relates to a method for predicting cutting force and temperature of end milling. Background technique [0002] The end milling cutting process is a typical intermittent cutting process. With the rotation of the tool, the teeth cut in and out of the workpiece, and the magnitude of the milling force also shows periodic changes, and the cutting heat, tool wear, chip Therefore, the accurate prediction of the milling force in the end milling process is not only the premise of studying the cutting mechanism, but also an important basis for the simulation research and machining deformation research of the end milling process. [0003] Cutting heat and cutting temperature are important physical phenomena in metal cutting process. During the cutting process, except for a small amount of heat energy converted from deformation energy that radiates in the form of heat radiation, the re...

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Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a method for predicting cutting force and temperature for end milling, aiming to solve the problem of lack of methods for predicting cutting force and temperature for end milling

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