Flutter stability domain modeling approach for face cutting process

A modeling method and plane cutting technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems that affect the processing quality of parts and aggravate tool wear

Inactive Publication Date: 2014-05-28
DALIAN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

If the unstable chatter cannot be effectively suppressed during cutting, it will affect the processing quality of the parts and increase the wear of the tool

Method used

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  • Flutter stability domain modeling approach for face cutting process
  • Flutter stability domain modeling approach for face cutting process
  • Flutter stability domain modeling approach for face cutting process

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Experimental program
Comparison scheme
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Embodiment Construction

[0052] Embodiments of the present invention will be described in detail below in conjunction with technical solutions and accompanying drawings.

[0053] Such as figure 1 and figure 2 As shown, among them, the material characteristic parameters include the material of the workpiece and the cutting tool, calculate the total cutting force in the cutting process, and use the regression to fit the cutting coefficient. Combined with the characteristic parameters obtained from the modal experiment, the stability lobe diagram is drawn, which is used to select the cutting parameters, including the number of revolutions, depth of cut and so on.

[0054] Use the exciter (hammer or exciter) to excite the tool system of the machine tool spindle, process the excitation signal and the collected response signal to the signal acquisition device, use FFT transformation and model fitting, and analyze it by computer The characteristic parameters of the system, including multi-order natural fr...

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Abstract

The invention belongs to the technical fields of simulating computational analysis and modal testing, and relates to a flutter stability domain modeling approach for a face cutting process. After all kinds of characteristic parameters of a material are known, a computer simulates a machining cutting process, calculates the cutting force in the machining process and analyzes the corresponding cutting coefficient. After the cutting coefficient is obtained, a modal experiment is utilized, modal testing is carried out on a machine tool spindle tool system, and the modal characteristic parameters of the machine tool spindle tool system are analyzed and comprise a multiple-order inherent frequency, a damping ratio, dynamic stiffness and the like. According to a flutter cutting theory, a stability lobe graph is drawn through combining the cutting coefficient and the system characteristic parameters and utilizing a computer assemble program, and is used for selecting the reasonable cutting parameter to avoid a flutter region, the processing precision and quality are improved, and a machine tool system is protected.

Description

technical field [0001] The invention belongs to the technical field of simulation calculation analysis and modal test, and relates to a modeling method of a flutter stable domain in a plane cutting process. Background technique [0002] The manufacturing industry is the pillar industry of our country's economic growth. As a relatively traditional field, it has established a relatively systematic theoretical system and accumulated rich practical experience. However, with the improvement of the level of science and technology, the machinery manufacturing industry is facing New challenges force mechanical manufacturing technology to develop in the direction of automation, flexibility, precision, informatization and intelligence. Cutting is the most widely used processing method. With the development of advanced manufacturing technology, higher requirements are put forward for the stability and reliability of cutting. In actual cutting, machining system chatter and tool failure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 李宏坤赵鹏仕丛明罗孟然
Owner DALIAN UNIV OF TECH
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