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Structural design method of TC11 alloy blisk precision forging

A technology of integral blisks and precision forgings, applied in metal processing equipment and other directions, can solve the problems of high processing cost, low material utilization rate, destruction of forging streamlines, etc., and achieve the effect of ensuring comprehensive mechanical properties and reducing machining hours.

Active Publication Date: 2010-04-07
WUXI TURBINE BLADE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]At present, most of the titanium alloy blisk forgings in my country are designed into a simple round cake structure, and then a large amount of material is removed by machining to obtain the finished blisk parts. The material utilization The efficiency is very low, the follow-up processing time is long, the processing cost is high, and the forging flow line is destroyed during the processing, which affects the performance of the part

Method used

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  • Structural design method of TC11 alloy blisk precision forging
  • Structural design method of TC11 alloy blisk precision forging
  • Structural design method of TC11 alloy blisk precision forging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] 1. First, the center wheel part adopts the design of adding 3mm machining allowance along the entire outer contour of the wheel, such as figure 2 Shown

[0014] 2. The single blade of the integral blisk is designed with a machining allowance of 3mm enveloping in the normal direction of the finished blade shape, and the overlapping part between the blade and the blade fills the process residual material, and the release angle is designed to be 8 degrees. Forgings of a single blade in a blisk, such as image 3 Shown.

[0015] 3. Array a single blade forging around the center of rotation to form the finished blade shape, and round the edges to obtain a precision forging of the integral blisk, such as Figure 4 Shown.

Embodiment 2

[0017] 1. First, the central roulette part adopts the design of adding a machining allowance of 5mm along the entire outer contour of the roulette, such as figure 2 Shown

[0018] 2. The single blade of the integral blisk is designed with a machining allowance of 3mm enveloping along the normal direction of the finished blade shape, and the overlapping part between the blade and the blade fills the process residual material, and the design of the release angle of 7 degrees is added. Forgings of a single blade in a blisk;

[0019] 3. Array a single blade forging around the center of rotation to form the finished blade shape, and round the edges to obtain a precision forging of the integral blisk, such as Figure 4 Shown.

Embodiment 3

[0021] 1. First of all, the central wheel part adopts the design of adding 4mm machining allowance along the entire outer contour of the wheel, such as figure 2 Shown

[0022] 2. The single blade of the integral blisk is designed with a machining allowance of 3mm enveloping in the normal direction of the finished blade shape, and the overlapped part between the blade and the blade fills the process residual material, and the release mold angle is designed to be 9 degrees. Forgings of a single blade in a blisk, such as image 3 Shown.

[0023] 3. Array a single blade forging around the center of rotation to form the finished blade, and round the edges to obtain a precision forging of the integral blisk, such as Figure 4 Shown.

[0024] The drawings described in the above embodiments, figure 2 1 is the design surface of the blisk center roulette forging, 2 is the finished surface of the blisk center roulette, and 3 is the machining allowance of the center roulette of the blisk; im...

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Abstract

The invention relates to a structural design method of TC11 alloy blisk precision forging which can realize structural design of blisk precision forging, save the raw material, shorten the processing cycle of forging and lower the cost. The structural design method of the invention comprises the design of the forging central wheel disc part and is characterized in that the structural design method also comprises the design of the blade part; 3mm of close-to-finish enveloping is added on single side of each one blade of the blisk according to the finished blade profile along the normal line to be designed as a forging blade, and the forging formation draft is 7-9 degrees.

Description

(1) Technical field [0001] The invention relates to the field of structural design of titanium alloy integral blisk forgings, and specifically a structural design method for TC11 alloy integral blisk precision forgings. (2) Background technology [0002] At present, most of the titanium alloy blisk forgings in our country are designed as simple disc structures, and then a large amount of material is removed by machining to obtain the blisk finished parts. The material utilization rate is very low, the subsequent processing time is long, and the processing cost is high. The forging streamline is destroyed during processing, which affects the performance of parts. (3) Summary of the invention [0003] In view of the above problems, the present invention provides a structural design method for TC11 alloy integral blisk precision forgings, which can realize the structural design of integral blisk precision forgings, save raw materials, shorten forging processing cycles, and save costs...

Claims

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Application Information

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IPC IPC(8): B23P15/02B21J5/00
Inventor 王金吕刘玉宝仲惟光
Owner WUXI TURBINE BLADE
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