Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for milling and vibration-damping blisk

An integral blisk and milling technology, applied in milling machine equipment, milling machine equipment details, metal processing machinery parts, etc., can solve the problems of blade cross-section position, contour and twist tolerance, small tool diameter, and knife yielding. , to achieve the effect of increasing the milling feed rate, saving processing time and saving processing costs

Inactive Publication Date: 2010-12-15
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
View PDF4 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the processing process, when the blade profile and flow channel are finely milled, the maximum length and thickness ratio of the blade is 35:1, so the blade has a long cantilever beam structure. Due to the long overhang of the blade, the usual processing technology is adopted. The blade will vibrate under the action of cutting force, and there will be a serious "knife giving up" phenomenon. At the same time, due to the limitation of the width of the channel between the blades and the width of the blade, the diameter of the tool is small and the blade is long, and the blade will vibrate under the cutting force , the coupling flutter of the cutter and the blade will seriously affect the surface processing quality of the blade, causing scale defects to appear on the surface of the blade, resulting in the fact that the scale defects cannot be eliminated by repeated processing of the blade tip, resulting in the surface quality of the blade not meeting the design requirements. The shape and position tolerances such as position degree, profile degree and distortion of the blade section are out of tolerance

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 milling and vibration-damping blisk
  • Method for milling and vibration-damping blisk
  • Method for milling and vibration-damping blisk

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] Embodiment: process a compressor integral blisk, the integral blisk is made up of disc 1 and blade 2, as figure 1 As shown, the material is titanium alloy.

[0033] Its processing steps are as follows:

[0034] 1. Filling materials are prepared according to a fixed ratio;

[0035] The mass ratio is: crystalline paraffin wax 65%, liquid wax 25%, rosin resin 9.9%, hindered phenolic antioxidant-2,6-tertiary butyl 4 methylphenol 0.1%;

[0036] 2. Melting filling material;

[0037] Fully mix the above filling materials in a metal container, heat on an electric furnace until the solid wax is completely melted, and then stir evenly to become a liquid filling agent.

[0038] 3. Install the pouring fixture;

[0039] Such as figure 2 As shown, the semi-closed annular casting fixture is placed on the overall compressor blisk from bottom to top, so that the metal support ring 5 is in contact with the edge plate 4 to ensure positioning and sealing, and the side steel plate 7 i...

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 belongs to the technical field of machining and discloses a method for milling and vibration-damping a blisk. The method comprises the following specific process steps of: (1) preparing a filling material according to the proportion; (2) melting the filling material; (3) mounting a pouring clamp; (4) pouring a filling agent; (5) condensing the filling agent at normal temperature, secondarily condensing the filling agent and checking the condensing state of the filling agent; (6) mounting a filtering clamp; and (7) carrying out the abutted milling processing and chip removal processing. By pouring the filling agent between the blisk and vanes in the milling processing of vane profile five coordinates of the blisk, the method enhances the rigidity of parts in the milling processing of the vanes, eliminates the chatter marks generated at the vent tip part of the vanes during milling and reduces the roughness of the surfaces of the vanes. Meanwhile, the rigidities of the parts and a clamping system thereof are enhanced, so that the milling feed rate is increased and the milling speed can be improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a method for reducing vibration by milling an integral blisk. Background technique [0002] The overall blisk of the compressor is a key part of the aero-engine, which is made of superalloy or titanium alloy. In the processing process, when the blade profile and flow channel are finely milled, the maximum length and thickness ratio of the blade is 35:1, so the blade has a long cantilever beam structure. Due to the long overhang of the blade, the usual processing technology is adopted. The blade will vibrate under the action of cutting force, and there will be a serious "knife giving up" phenomenon. At the same time, due to the limitation of the width of the channel between the blades and the width of the blade, the diameter of the tool is small and the blade is long, and the blade will vibrate under the cutting force , the coupling flutter of the cutter...

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): B23C3/00B23Q11/00
Inventor 胡晓群李家永岳召启卢成玉韩德印杨坚
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com