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Method for manufacturing titanium alloy straightener blade

A rectifying blade and manufacturing method technology, applied in the field of rectifying blade preparation, can solve the problems of complex tooling structure, high equipment requirements, low yield rate, etc., and achieve the effect of simple tooling structure, smooth appearance surface, and high qualified rate of finished products

Active Publication Date: 2014-04-02
北京智创联合科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to the diffusion connection equipment, the original manufacturing process also needs a gas source system, which has high requirements for equipment; ribs and cavities cannot be preset; cavities are naturally formed, and the size cannot be too small, which has limitations; heating time Long, the metal grain size grows seriously; the structure of the tooling is complex, and there must be a tight edge; the internal cavity and ribs are naturally formed, irregular; there are many processes and the process is complicated; the surface is not processed after forming, and the surface accuracy is low; the center of gravity of the parts is discrete. , uncontrollable; stress triangle area is prone to appear after forming, and there are pits on the surface; the ribs are distributed in one direction, and the stress state is poor; the yield rate is low (the yield rate is basically between 60% and 80%)

Method used

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  • Method for manufacturing titanium alloy straightener blade
  • Method for manufacturing titanium alloy straightener blade
  • Method for manufacturing titanium alloy straightener blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A. Preparation of blank 1: Carry out water cutting of the sheet after hot rolling into blank 1, and use one side of blank 1 as a reference to mill blank 1 according to the size of blank 1; the function of this step is to cut the sheet into Blank 1 of suitable size is convenient for subsequent processing to meet the required size of the product, L1=300mm, L2=100mm, L3=300mm, L4=100mm, H=30mm, and the machining allowance G is 20mm;

[0054] B. Machining screw holes 2 around: machine screw holes 2 around the center of the margin, process 5 M10 screw holes on L1 and L3 sides, and process 3 M10 screw holes on L2 and L4 sides; M10 is the processed one The size of the screw hole, in mm.

[0055] C. Milling the first datum plane: the left part 3 and the right part 4 of step B are detachably fixed on the tooling base 6 through the surrounding tension screws 7 respectively, and the upper surface of the left part 3 or the right part 4 is milled first Datum;

[0056] D. Process t...

Embodiment 2

[0074] Except for the diffusion bonding process, other steps are the same as in Embodiment 1. The difference is that in the G step diffusion connection process: the diffusion connection parameters are as follows:

[0075] 1. Close the door and vacuumize to 9×10 -3 Pa, start heating;

[0076] 2. It takes 30 minutes for the temperature to rise from 0°C to 350°C;

[0077] 3. Keep warm at 350°C and vacuumize to 4×10 -3 Pa, continue heating;

[0078] 4. It takes 30 minutes for the temperature to rise from 350°C to 600°C;

[0079] 5. Keep warm at 600℃ to 4×10 -3 Start heating after Pa;

[0080] 6. It takes 40 minutes for the temperature to rise from 600°C to 950°C;

[0081] 7. At 950°C, keep warm for 240 minutes; when the temperature reaches 950°C, the pressure increases to 12MPa;

[0082] 8. Turn off the heating power supply to stop heating, turn off the hydraulic station to stop pressurization, cool down to below 180°C and start the furnace.

[0083] Connection results: F...

Embodiment 3

[0085] Except for the diffusion bonding process, other steps are the same as in Embodiment 1. The difference is that in the diffusion connection process of step G: the diffusion connection parameters are as follows: 1. Close the machine door and evacuate to 9×10 -3 Pa, start heating;

[0086] 2. It takes 30 minutes for the temperature to rise from 0°C to 350°C;

[0087] 3. Keep warm at 350°C and vacuumize to 4×10 -3 Pa, continue heating;

[0088] 4. It takes 30 minutes for the temperature to rise from 350°C to 600°C;

[0089] 5. Keep warm at 600℃ to 4×10 -3 Start heating after Pa;

[0090] 6. It takes 30 minutes for the temperature to rise from 600°C to 920°C;

[0091] 7. At 920°C, keep warm for 180 minutes; when the temperature reaches 920°C, the pressure increases to 12MPa

[0092] 8. Turn off the heating power supply to stop heating, turn off the hydraulic station to stop pressurization, cool down to below 180°C and start the furnace.

[0093] Connection results: Fo...

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Abstract

The invention discloses a method for manufacturing a titanium alloy straightener blade. The process flow comprises the following steps: A, preparing blanks; B, machining peripheral screw holes; C, milling a first reference surface; D, machining small positioning holes and milling a connecting surface; E, performing pre-connection pretreatment on the connecting surface; F, performing pre-connection assembly; G, performing diffusion bonding; H, performing post-connection milling; I, machining long oblique circular holes; J, performing post-connection treatment. The straightener blade manufactured with the method for manufacturing the titanium alloy straightener blade has the advantages of smooth surface, low cost and firmness in connection; moreover, the yield of the straightener blade manufactured by using the method is higher.

Description

technical field [0001] The invention relates to a method for preparing rectifying blades, in particular to a method for manufacturing titanium alloy rectifying blades. Background technique [0002] The original manufacturing process is blade material preparation → welding stop treatment → argon arc welding to seal the tight edge → diffusion connection → superplastic forming → shape edge machining. In addition to the diffusion connection equipment, the original manufacturing process also needs a gas source system, which has high requirements for equipment; ribs and cavities cannot be preset; cavities are naturally formed, and the size cannot be too small, which has limitations; heating time Long, the metal grain size grows seriously; the structure of the tooling is complex, and there must be a tight edge; the internal cavity and ribs are naturally formed, irregular; there are many processes and the process is complicated; the surface is not processed after forming, and the su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/04
CPCB23P15/04
Inventor 杨小克吴维贵
Owner 北京智创联合科技股份有限公司
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