Protective tool for end tooth blasting prohibited area and shot blasting method thereof

A technology for protecting tooling and end teeth, which is applied in the field of surface treatment of parts, can solve the problems of shortening the processing cycle and low protection accuracy of the no-spray area, and achieve the effect of shortening the processing cycle, meeting the needs of large-scale production and improving reliability.

Active Publication Date: 2018-08-21
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is: to propose a protective tooling for the spray-free area of ​​the end teeth and its shot peening method, which can solve the problem of low protection precision of the complex spray-free areas such as the end teeth, improve the pass rate of shot peening processing, and improve the spray-free area. The reliability of protection meets the processing requirements under the conditions of large shot peening intensity and large-size projectile shot peening. In addition, it can significantly shorten the processing cycle, reduce process costs, and meet the needs of large-scale production.

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
  • Protective tool for end tooth blasting prohibited area and shot blasting method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The protected end teeth are arranged radially, forming a ring shape, and there is a phenomenon of structural interference. The protective tooling of the prepared dentate no-spray area is as follows: figure 1 As shown, the tooling is made of polytetrafluoroethylene and is in the shape of a ring. The inner diameter of the ring is 50cm, which is consistent with the inner diameter of the protected end tooth; the outer diameter of the ring is 100cm, which is larger than the outer diameter of the protected end tooth. 5%, the thickness of the ring is 10cm, which is 30% larger than the height of the protected end teeth; the upper end of the ring is flat, and the inner side of the lower end of the ring is densely covered with end teeth. The number of end teeth is 73, which is the same as the protected end teeth. The shape and quantity of the end teeth are consistent, and the length of the end teeth is 1 / 2 of the length of the protected end teeth; there is an annular boss on the ...

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

PropertyMeasurementUnit
sizeaaaaaaaaaa
Login to view more

Abstract

Belonging to part surface treatment technologies, the invention relates to a protective tool for an end tooth blasting prohibited area and a shot blasting method thereof. The protective tool for an end tooth blasting prohibited area adopts a polytetrafluoroethylene or aluminum alloy material, is in a circular ring shape, and the inner diameter of the circular ring is consistent with the that of protected end teeth. During shot blasting, the protective tool is placed on the protected end teeth to ensure that the end teeth on the inner side of a lower end face circular ring and the protected endteeth are engaged with each other, a part is placed horizontally into a shot blasting room, the protective tool faces upward, and a spray gun aligns to a shot blasting area for shot blasting. The protective tool provided by the invention can solve the problem of low protection precision at end teeth or other complex blasting prohibited areas and improve the qualification rate of shot blasting processing. Fourthly, the protective tool has the advantages of convenient installation and disassembly, full use and the like, also can significantly shorten the processing cycle, reduce the process cost and meet the needs of large-scale production.

Description

technical field [0001] The invention belongs to the surface treatment technology of parts, and relates to a protection tool for a spray-free area of ​​an end tooth and a shot blasting method thereof. Background technique [0002] Shot peening technology is a surface strengthening technology widely used in aero-engines and aircraft at home and abroad. It is mainly used in the manufacture of key load-bearing metal components in aviation, which can improve the fatigue life of components. In recent years, in order to ensure good reliability and long life of metal components, design institutes have increasingly adopted integral manufacturing and forming technologies. Therefore, the shape of metal components has become more and more complex, and the difficulty of shot peening has become more and more difficult. [0003] In order to ensure the installation accuracy, the end teeth and other parts of the metal components should not be shot blasted, so they become spray-free areas and...

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): B24C1/10B24C1/00B24C3/00B24C9/00
CPCB24C1/00B24C1/10B24C3/00B24C9/00
Inventor 罗学昆艾莹珺汤智慧王欣王强宋颖刚
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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