Method for processing part with thin wall and changed-angle curved surface appearance

A processing method and variable angle technology, which is applied in the processing field of thin-walled variable-angle curved surface shape parts

Inactive Publication Date: 2012-07-18
SHENYANG AIRCRAFT CORP
View PDF6 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a processing method for thin-walled variable-angle curved surface shape parts. The method adopts the circular cutting method with unequal axial height, so that the parts are evenly stressed during the cutting process, and the stress release of the material is also easy. Relatively uniform, thus effectively controlling the deformation of thin-walled variable-angle curved surface parts

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for processing part with thin wall and changed-angle curved surface appearance
  • Method for processing part with thin wall and changed-angle curved surface appearance
  • Method for processing part with thin wall and changed-angle curved surface appearance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] A method for processing thin-walled curved surface parts with variable angles. The basic steps are to carry out alternately equal-thickness feed milling on the curved surface, such as figure 1 The thickness of the flange shown is 1.5mm, and it is milled to 3.5mm during rough milling, that is, a margin of 1mm is left for each of the inner and outer shapes, and the processing direction of the inner and outer shapes is the direction of the arrow, as shown figure 2 As shown, first determine the first axial cutting depth of the front is 1mm and the milling load-bearing width is 2mm, then the axial cutting depth of the front is 1mm, and the reverse axial cutting depth is 3mm after turning over, so that there is a margin of 2mm on the front. The supporting function, and then the axial feed distance of turning over multiple times is 4mm, so as to ensure that each time the opposite side has a load-bearing width of 2mm, until the remaining width of the front and back sides is les...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a method for processing a part with a thin wall and a changed-angle curved surface appearance, which comprises the basic step of conducting front face and reverse face alternate equal thickness feeding milling. The method is characterized by a firstly determining first axial cutting depth A and a milling bearing width B on the front face; secondly enabling an front face axial cutting depth to be A and enabling a reverse face axial cutting depth to be A+B after being turned over; thirdly enabling an axial cutting depth to be 2B after being repeatedly turned over until a surplus width of the front face and the reverse face to be less than 2B, and then directly conducting balance finish-milling and putting in place. The method adopts an axial unequal height circumferential cutting method, enables the part to be evenly stressed in a cutting process and enables stress release of a material to be even, thereby effectively controlling the deformation problem of the part with the thin wall and the changed-angle curved surface appearance.

Description

technical field [0001] The invention relates to a processing method of a thin-wall variable-angle curved surface shape part, which belongs to the field of mechanical processing. Background technique [0002] Due to the requirements of strength and assembly, there are many thin-walled and variable-angle curved surface parts in the current aviation machining field. In the development and production, technicians usually process the inner shape first and then the outer shape according to the traditional machining method. This processing method makes the parts stress uneven and the stress release of the material is uneven, which leads to the deformation of the parts, thus affecting The size of the machined parts has a relatively low pass rate. Or use tooling to support the inner shape of the part in an attempt to control the deformation of the part. However, in the development and production, the designed parts often need one or two design changes. In this case, the tooling will...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B23C3/00
Inventor 李建朋
Owner SHENYANG AIRCRAFT CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap