Unlock instant, AI-driven research and patent intelligence for your innovation.

Machining method of titanium alloy inner side pressing plate of helicopter empennage reducer

A tail reducer and processing method technology, which is applied in the processing field of eliminating deformation of the titanium alloy inner pressure plate of the helicopter tail reducer, can solve problems such as easy deformation, difficulty in ensuring precision bolt hole placement, and high precision requirements for titanium alloy parts. The effect of solving deformation and ensuring the position accuracy of precision bolt holes

Active Publication Date: 2020-02-18
ZHONGNAN TRANSMISSION MACHINERY FACTORY CHANGSHAAVIATION IND
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This type of titanium alloy parts requires high precision, complex structure, thin wall thickness, and is prone to deformation during processing.

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
  • Machining method of titanium alloy inner side pressing plate of helicopter empennage reducer
  • Machining method of titanium alloy inner side pressing plate of helicopter empennage reducer
  • Machining method of titanium alloy inner side pressing plate of helicopter empennage reducer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The titanium alloy inner pressing plate parts of the present embodiment (as Figures 2 to 5 shown) includes an inner hole arranged in the middle and two large ends and two small ends respectively arranged opposite to the two ends of the inner hole. The front faces of the big end and the small end are provided with front cavities, and the reverse side of the small end is provided with reverse cavities. A rib is provided between the big end and the small end, and a precise bolt hole 4 is arranged on the rib.

[0039] Such as figure 1 As shown, a processing method for a titanium alloy inner pressure plate of a helicopter tail reducer provided by an embodiment of the present invention includes the following steps:

[0040] Step 1. Rough machining of titanium alloy inner pressure plate parts, specifically:

[0041] 1. Roughly process the anti-reference plane 3 and the inner surface 6 of the first inner hole of the titanium alloy inner pressure plate part through the turnin...

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 provides a machining method of a titanium alloy inner side pressing plate of a helicopter empennage reducer. The machining method of the titanium alloy inner side pressing plate of the helicopter empennage reducer sequentially comprises the following steps of rough machining, stress removing, semi-finish machining, shot blasting combination lining and finishing machining on an innerside pressing plate part. According to the machining method, the position precision of a precision bolt hole can be ensured.

Description

technical field [0001] The invention relates to the technical field of processing titanium alloy inner pressure plate parts, in particular to a processing method for eliminating deformation of a titanium alloy inner pressure plate of a helicopter tail reducer. Background technique [0002] The titanium alloy inner pressure plate is the upper part of the domestic fourth-generation helicopter tail reducer. This part is connected to the hub and bears the complex aerodynamic load of the helicopter tail rotor. It has a complex structure and is a key fatigue structural part of the tail reducer. The fatigue life requirement reaches 6000Fh. [0003] This type of titanium alloy parts requires high precision, complex structure, thin wall thickness, and is prone to deformation during processing. Therefore, it is an urgent problem to be solved what kind of process method to use for manufacturing, to prevent and eliminate the stress and deformation generated in the process of processing,...

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): B23P15/00
CPCB23P15/00
Inventor 李杰刘圣桂杨柳赵德满
Owner ZHONGNAN TRANSMISSION MACHINERY FACTORY CHANGSHAAVIATION IND