A method for controlling milling parameters and tool wear of titanium alloys based on roughness

A tool wear, titanium alloy technology, applied in the direction of program control, computer control, general control system, etc., can solve the problems of poor consistency of surface morphology, difficult control of surface roughness, etc., to achieve accurate relationship model, reliable design and analysis methods Effect

Active Publication Date: 2020-11-06
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide a roughness-based titanium alloy milling parameter and tool wear control method to solve the problems of difficult surface roughness control and poor surface morphology consistency in the precision milling process of titanium alloy components in the prior art

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  • A method for controlling milling parameters and tool wear of titanium alloys based on roughness
  • A method for controlling milling parameters and tool wear of titanium alloys based on roughness
  • A method for controlling milling parameters and tool wear of titanium alloys based on roughness

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Embodiment Construction

[0039] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] The invention discloses a process control method for precision milling surface roughness of titanium alloy components, which specifically includes the following steps:

[0041]Step 1. According to the aviation manufacturing engineering manual, experience or literature, select the precision milling parameter range, design the response surface method to carry out the precision milling test, test the surface roughness after the test, and establish a surface roughness prediction model.

[0042] Step 1.1, establishing the initial process parameter domain for precision milling of titanium alloy components.

[0043] In this example, the TC17 titanium alloy is used for the test, and the precision milling process parameters of the ball end milling cutter are: milling speed [60m / min, 160m / min], feed per tooth [0.02mm / z, 0.10mm / z] , Milling widt...

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Abstract

The invention discloses a roughness based titanium alloy milling parameter and cutter wearing control method comprising the following steps: building a titanium alloy member precision milling initialprocess parameter field; carrying out a quadrature test according to the initial process parameter field, thus respectively obtaining the surface roughness of a tested member in a milling feed direction and a cut-width direction; building an absolute sensitivity model of the surface roughness on precision milling; determining a surface roughness change scope corresponding to a stable locus and a non-stable locus of each parameter until the optimization target of the surface roughness is within a scope corresponding to the stable locus; carrying out a cutter wearing test according to the stablelocus so as to obtain a selection scope of a cutter wearing extent and the surface roughness; setting different precision milling technological parameters for tests to obtain the technological parameter stable locus, and carrying out cutter wearing tests so as to obtain a relation curve between the tool flank wear and the surface roughness, thus controlling the surface roughness in the titanium alloy member precision milling processing.

Description

【Technical field】 [0001] The invention belongs to the technical field of metal material cutting, and in particular relates to a roughness-based titanium alloy milling parameter and a tool wear control method. 【Background technique】 [0002] Titanium alloy has excellent properties such as light weight, high strength, high temperature resistance, and fatigue resistance. It is an important metal material for manufacturing major equipment in aerospace, national defense and other fields and key parts in new strategic weapons. At the same time, titanium alloy is also a typical difficult-to-machine material. Its processing performance is poor, and it is prone to problems such as high cutting temperature, large cutting force per unit area, severe chilling and hardening, and easy wear of tools. These problems will affect the surface roughness of precision milling, thereby affecting the service performance of aeroengine components. Therefore, in the precision milling process of titan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/408
CPCG05B19/4086G05B2219/35356
Inventor 姚倡锋谭靓张定华任军学傅新强张吉银
Owner NORTHWESTERN POLYTECHNICAL UNIV
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