Check patentability & draft patents in minutes with Patsnap Eureka AI!

Near-isothermal forging forming method of Ti1023 titanium alloy hollow shaft neck forging

A hollow journal and isothermal forging technology, which is applied in the field of forging and forming, can solve the problems of small deformation, uneven deformation, and unsatisfactory structure of the rod, and achieve the effect of increasing deformation and preventing temperature rise

Inactive Publication Date: 2017-03-15
GUIZHOU ANDA AVIATION FORGING
View PDF9 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the forging is a key rotating part of an aircraft engine, the working conditions are very harsh, and the forging is required to have high strength, fracture toughness, and good low-cycle fatigue performance. It is difficult to meet these performance requirements by ordinary die forging and free forging.
At present, this type of forging is mainly formed by closed die forging of billets, and then produced by machining and digging. However, on the one hand, this method will cause uneven deformation and small deformation of the rod during die forging, resulting in The structure is not ideal, and a complete, coarse, straight and continuous grain boundary α phase appears on the original β grain boundary of the rod; on the other hand, the machining hole will cut off the forging flow line of the forging, thus affecting the quality of the forging

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
  • Near-isothermal forging forming method of Ti1023 titanium alloy hollow shaft neck forging
  • Near-isothermal forging forming method of Ti1023 titanium alloy hollow shaft neck forging
  • Near-isothermal forging forming method of Ti1023 titanium alloy hollow shaft neck forging

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0016] The main chemical element content (percentage by weight) of the Ti1023 alloy is: 2.6%-3.4% Al content, 9.0%-11.0% V content, 1.6%-2.2% Fe content, 0.05% C content, and 0.05% N content. 0.05%, H content 0.015%, Y content 0.005%, O content 0.13%, and the balance is Ti.

[0017] The steps of this method are as follows:

[0018] Heat the Ti1023 titanium alloy bar material cut according to the specification in the forging heating furnace, first heat the bar material to 40°C below the phase transition point and keep it warm, and the holding time is calculated according to 0.3min / mm~0.5min / mm; Heat preservation at 30°C above the change point, and the heat preservation time is calculated as 0.4min / mm~0.6min / mm; after heat preservation, the bar is subjected to upsetting, punching, pre-rolling, and chamfering to obtain a rectangular ring blank 3, such as figure 1 shown;

[0019] Such as figure 2 As shown, put the rectangular ring blank 3 into the forming die, drive the upper ...

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 discloses a near-isothermal forging forming method of a Ti1023 titanium alloy hollow shaft neck forging. The method comprises the following steps: heating a Ti1023 titanium alloy bar through a certain manner; treating the heated Ti1023 titanium alloy bar by upsetting, hole punching, pre-rolling and chamfering to obtain a rectangular ring blank; and positioning the rectangular ring blank into a mould, and forming at a certain deformation rate to obtain the Ti1023 titanium alloy hollow shaft neck forging. With the adoption of the method, the deformation of each area can be reasonably distributed so as to obtain the best-fit structure performance. The method is applied to extruding forming of a hollow shaft neck forging.

Description

technical field [0001] The invention relates to a near-isothermal forging forming method, in particular to a near-isothermal forging forming method of a Ti1023 titanium alloy hollow journal forging. Background technique [0002] The Ti023 titanium alloy hollow journal forging is a hollow thin-walled special-shaped part. The upper end of the shape is a large bell mouth, and the lower end has a cylindrical cylinder. Since the forging is a key rotating part of an aircraft engine, the working conditions are very harsh, and the forging is required to have high strength, fracture toughness, and good low-cycle fatigue performance. It is difficult to meet these performance requirements by ordinary die forging and free forging. At present, this type of forging is mainly formed by closed die forging of billets, and then produced by machining and digging. However, on the one hand, this method will cause uneven deformation and small deformation of the rod during die forging, resulting i...

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): B21K3/00B21J5/02B21J1/06C22C14/00
CPCB21K3/00B21J1/06B21J5/025C22C14/00
Inventor 陈明高先模杨孝荣杨亚平陈红芳
Owner GUIZHOU ANDA AVIATION FORGING
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com