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Method for rapidly forming powdery titanium alloy blade prefabricated blank with damping boss

A titanium alloy and preform technology is applied in the field of rapid prototyping and improvement of the preparation process of powder titanium alloy components. The effect of reducing the machining allowance

Active Publication Date: 2019-01-18
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, extrusion + upsetting, free forging or flat forging technology is mostly used for blade preforming. Due to the complex shape of blade preform, the existing blank making technology has complicated procedures, low blank making efficiency, poor dimensional accuracy control, and poor structure uniformity. Problems such as poor stability and poor stability restrict the overall performance and cost of blade forgings

Method used

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  • Method for rapidly forming powdery titanium alloy blade prefabricated blank with damping boss
  • Method for rapidly forming powdery titanium alloy blade prefabricated blank with damping boss
  • Method for rapidly forming powdery titanium alloy blade prefabricated blank with damping boss

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Experimental program
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Effect test

Embodiment 1

[0030] The rapid prototyping method for powder titanium alloy blade preform is characterized in that: the steps of the method are:

[0031] Step 1. Titanium alloy powder ingot preparation

[0032] Make a cylindrical stainless steel sheath according to the size of the component. The grade of the stainless steel material is 304. Fill the titanium alloy powder in the sheath, vacuumize the inside of the sheath and seal it to obtain a powder ingot, such as figure 1 As shown, the powder billet is cylindrical;

[0033] Step 2. Prepare the forming mold

[0034] The forming mold is prepared by adopting the steel material of grade H13, and the forming mold consists of an upper mold 1, an upper outer cylinder 2, a lower outer cylinder 4 and a lower mold 5 to form a forming mold cavity, wherein the upper mold 1 and the lower mold 5 are respectively fixed on The upper and lower worktables of the press can move up and down in the axial direction, and the upper outer cylinder 2 and the low...

Embodiment 2

[0044] The rapid prototyping method for powder titanium alloy blade preform is characterized in that: the steps of the method are:

[0045] Step 1. Titanium alloy powder ingot preparation

[0046] Make a cylindrical stainless steel sheath according to the size of the component. The grade of the stainless steel material is 304. Fill the titanium alloy powder in the sheath, vacuumize the inside of the sheath and seal it to obtain a powder ingot, such as figure 1 As shown, the powder billet is cylindrical;

[0047] Step 2. Prepare the forming mold

[0048] The forming mold is prepared by adopting the steel material of grade H13, and the forming mold consists of an upper mold 1, an upper outer cylinder 2, a lower outer cylinder 4 and a lower mold 5 to form a forming mold cavity, wherein the upper mold 1 and the lower mold 5 are respectively fixed on The upper and lower worktables of the press can move up and down in the axial direction, and the upper outer cylinder 2 and the low...

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Abstract

The invention discloses a method for rapidly forming a powdery titanium alloy blade prefabricated blank with a damping boss. The method includes the steps of preparing a powder ingot blank, designinga powder rapid forming die and conducting forging. The method has the advantages that the powdery titanium alloy component which is compact in texture, uniform in crystal particle and fine can be obtained by filling a bag with powder for direct rotary extrusion forming, the technological process is simplified, the development cycle is shortened, and the component manufacturing cost is reduced.

Description

technical field [0001] The invention relates to a rapid forming method for a powder titanium alloy blade prefabricated blank with a damping boss, belongs to the technical field of thermal processing, and relates to the improvement of the preparation process of a powder titanium alloy component. Background technique [0002] Powdered titanium alloy is a material developed to solve the solidification segregation and deformation difficulties caused by the high alloying of cast and forged alloys. High-alloyed powdered titanium alloy has the advantages of high temperature resistance, high strength and toughness, and low crack growth rate. It can be used to manufacture high-performance, high-reliability, long-life advanced aero-engine blades, discs and other high-temperature resistant components. However, high-alloyed powdered titanium alloys are generally sensitive to temperature, have a narrow processing window, and are hard-to-deform alloys, which lead to certain difficulties i...

Claims

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Application Information

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IPC IPC(8): B22F3/10B22F3/035B22F5/00
CPCB22F3/03B22F3/10B22F5/00
Inventor 方爽兰博姜涛李凯
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS