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Hamming formula-based milling stability predicting method

A stable and milling technology, applied in the direction of program control, instrumentation, electrical digital data processing, etc.

Inactive Publication Date: 2017-06-13
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problems existing in the traditional calculation method for predicting milling stability, the present invention proposes a method based on linear multi-step method using Hamming formula to predict milling stability, thereby improving calculation efficiency and calculation accuracy, and realizing high-speed precision cutting.

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Embodiment Construction

[0081] In order to make the present invention clearer, the present invention will be described in further detail. It should be understood that the specific embodiments described here are only used to explain the present invention, but not used to limit the present invention.

[0082] On the contrary, the present invention covers any alternatives, modifications, equivalent methods and schemes defined by the claims in the spirit and scope of the present invention. Further, in order to enable the public to have a better understanding of the present invention, in the following detailed description of the present invention, some specific details are described in detail. Those skilled in the art can fully understand the present invention without the description of these details.

[0083] The calculation method includes the following steps:

[0084] Step 1): Establish a system dynamics model considering regenerative flutter:

[0085]

[0086] In formula (1), M, C and K are the modal mass m...

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Abstract

Disclosed is a Hamming formula-based milling stability predicting method. The Hamming formula-based milling stability predicting method is mainly applied to selecting reasonable milling parameters for part machining. The Hamming formula-based milling stability predicting method is characterized by comprising dispersing a forced oscillation period into evenly-spaced intervals through the Hamming formula to obtain the transfer matrix of a milling system, and determining the characteristic value of the transfer matrix of the milling system according to the Fourier theories to predict the stability of the milling system. During high-speed numerical controlled machining processes, the Hamming formula-based milling stability predicting method can help select reasonable milling parameters according to a stability labe graph to ensure achieve high-speed and high-efficiency machining without oscillation, thereby optimizing machining parameters, ensuring high surface quality and achieving precise machining.

Description

Technical field [0001] The invention belongs to the field of advanced manufacturing technology, and particularly relates to a method for predicting milling stability based on the Hamming formula in a linear multi-step method, and is mainly used for selecting reasonable cutting parameters for machining parts. Background technique [0002] With the rapid development of modern industry, aviation, aerospace, shipbuilding and automobile fields have become more and more complex, and the surface quality requirements have become stricter. The requirements for CNC machining capabilities have also increased significantly, and high-speed cutting processing technology has emerged. However, the selection of its processing parameters is closely related to the part itself and is also affected by the cutting process. Sometimes the selection of cutting parameters is too conservative, making it difficult for the machine tool to give full play to its performance; at the same time, improper selectio...

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Application Information

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IPC IPC(8): G05B19/406G06F17/50
CPCG05B19/406G06F30/20
Inventor 杜娟曹启超彭彬彬孙胜博宁晓琦
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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