Wall plate processing technology for hyperboloid thin wall

A processing technology and hyperboloid technology, applied in the field of machining, can solve the problems of reducing the deformation of parts, clamping, positioning, etc., so as to reduce the deformation and ensure the correctness.

Active Publication Date: 2010-03-17
JIANGXI HONGDU AVIATION IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to enable the parts to remove the allowance evenly and minimize the deformation of the parts by adjusting the machining allowance of each numerical control progr

Method used

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  • Wall plate processing technology for hyperboloid thin wall
  • Wall plate processing technology for hyperboloid thin wall
  • Wall plate processing technology for hyperboloid thin wall

Examples

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[0022] Refer to the attached below Figure 1 to 4 To further explain the present invention, the hyperboloid thin-walled wall of the present invention adopts three-coordinate ordinary CNC milling machine for rough machining, and five-coordinate high-speed milling for semi-finishing and finishing. The process flow is as follows:

[0023] 1) Rough machining: First, clamp the blank with platen grooves on both sides of the blank, and process the concave surface. After processing, the concave surface of the blank is left with a margin of 15mm, and the process patch 2, process patch 2 and concave surface on both sides are processed at the same time The two sides of the surface are flush; then, turn the surface for convex surface processing. Before processing, mill the surface of the process patch 2 on both sides of the convex surface to 1 / 4 of the height of the hyperboloid thin-walled plate blank. The amount is 15mm; the front and rear ends of the blank are processed, and two positionin...

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Abstract

The invention relates to a wall plate processing technology for hyperboloid thin wall, belonging to the field of the mechanical processing technology. The process of producing the thin-wall wall boardwith double curved surfaces comprises the steps of rough finishing by a three-coordinate numerically controlled milling machine, heat-treating, semifinishing by a five-coordinate numerically controlled milling machine, natural aging, finishing by the five-coordinate numerically controlled milling machine, finishing on a vacuum platform and process boss cutting. The margin of the parts can be eliminated evenly and the deformation of the parts can be reduced to the maximum extent by adjusting the parameters including the processing allowance, the processing speed, the milling mode and the likein each numerically controlled procedure. The difficult problem of part clamping and positioning is solved by adopting the vacuum absorbing platform integrally having a cambered surface to absorb andprocess the parts.

Description

Technical field: [0001] The invention relates to the technical field of mechanical processing, in particular to a processing technology for hyperboloid thin-walled panels. Background technique [0002] The aircraft fuel tank wall plate is made of hyperboloid thin-walled wall plate, the material is LD5 aluminum alloy, and the thinnest part of the wall thickness is 1.5mm. In order to increase the strength of the part, there are generally many ribs on the curved surface. Therefore, such parts have complex shapes and are difficult to process. At present, such parts are generally sheet metal parts or flat thin-walled parts that are shot blasted to form curved surfaces. When using sheet metal processing and riveting for final forming, the sealing performance between the ribs and the web cannot be guaranteed, and there is oil leakage, which cannot meet the requirements of use; Parts do nothing. The overall mechanical processing does not have the disadvantages of the above proces...

Claims

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Application Information

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IPC IPC(8): B23C3/00
Inventor 廖翔袁柳黎明傅勇
Owner JIANGXI HONGDU AVIATION IND GRP
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