Method for improving integrity of cutting surface of aluminum-lithium alloy workpiece

A technology of cutting surface, aluminum-lithium alloy, applied in metal processing machinery parts, metal processing equipment, manufacturing tools, etc., can solve the problems of non-conformity, high waste liquid treatment cost, large plant area, etc., to reduce processing costs, control Pollution, the effect of improving efficiency

Inactive Publication Date: 2016-10-12
COMAC +1
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Problems solved by technology

This method occupies a large area of ​​the factory building, causes serious pollution, and the cost of waste liquid treatment is high, which does not conform to the concept of modern sustainable green manufacturing.
[0003] At present, there are many studies on the superplastic forming process of aluminum-lithium alloys, but there are few related studies on the integrity of the cutting surface of aluminum-lithium alloys.

Method used

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  • Method for improving integrity of cutting surface of aluminum-lithium alloy workpiece
  • Method for improving integrity of cutting surface of aluminum-lithium alloy workpiece
  • Method for improving integrity of cutting surface of aluminum-lithium alloy workpiece

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Embodiment Construction

[0022] The illustrated embodiments are not intended to be exhaustive of all embodiments in accordance with the invention. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention.

[0023] The cutting system experimental device used in the embodiment of the present invention selects a polycrystalline diamond face milling cutter as a processing tool, and the tool is clamped on a MikronUCP800 five-axis machine tool. The specific steps are:

[0024] 1. The geometric parameters of the tool are found to be: shank diameter 100mm; radial rake angle 10°, axial rake angle 5°, and the tool material is polycrystalline diamond (PCD). Select the range of process parameters as shown in Table 1 from level V to level I.

[0025] 2. Orthogonal experimental design with five levels and four factors was adopted. Take speed, depth of cut, feed, angle between feed direction and rolling di...

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Abstract

The invention provides a method for improving the integrity of the cutting surface of an aluminum-lithium alloy workpiece, comprising the steps of: (1) obtaining the geometric parameters of the tool system and selecting the range of processing parameters; (2) formulating an orthogonal test table; (3) according to the formulated The orthogonal test table is cut under dry cutting conditions and liquid nitrogen cooling conditions in turn; (4) measuring the cutting surface integrity parameters of aluminum-lithium alloy workpieces after cutting under dry cutting conditions and liquid nitrogen cooling conditions; and (5) Analyze and test integrity parameters to determine optimized processing parameters.

Description

technical field [0001] The invention belongs to the technical field of metal cutting processing. In particular, the present invention relates to a method for improving the integrity of the cutting surface of an aluminum-lithium alloy workpiece, especially considering the microscopic morphology and the influence of residual stress on the surface integrity of the aluminum-lithium alloy under the extreme cooling condition of liquid nitrogen, and proposes Optimal scheme of process parameters. Background technique [0002] The excellent low density, high specific strength, high specific stiffness and other characteristics of aluminum-lithium alloy make it the main structural material of a new generation of aerospace vehicles. As the main structural part to maintain the shape of the aircraft, the aircraft skin will bear the alternating load caused by the change of the pressure difference inside and outside the cabin during the take-off and landing of the aircraft. Therefore, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23C3/00B23Q17/20
CPCB23C3/00B23Q17/20
Inventor 陈立袁益楚许言午黄信达张烘州张小明丁汉
Owner COMAC
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