A method for isothermal forming of intermetallic compound blade forging

An intermetallic compound and blade technology, which is used in metal processing equipment, engine components, mechanical equipment, etc., can solve the problems of increasing the forging allowance, increasing the deformation resistance of the blank, and difficulty in forming qualified blades, so as to achieve uniform deformation and use. The effect of prolonging life and eliminating microcracks

Active Publication Date: 2016-01-20
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Problems solved by technology

The forging temperature of this alloy is high, and the forging temperature range is relatively narrow. Under traditional forging conditions, the heated blank is transferred to the deformation equipment, put into the mold and the subsequent deformation process, and the temperature will inevitably drop, resulting in a sharp increase in the deformation resistance of the blank. , the plasticity is reduced; if the traditional forging forming technology is used, not only the tonnage of the equipment needs to be greatly increased, but also the forging processing allowance has to be increased, resulting in a blade single-sided allowance of more than 1.5mm, which reduces the material utilization rate and improves the manufacturing process. Cost, difficulty in forming qualified blades

Method used

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Embodiment Construction

[0021] An isothermal forming method for an intermetallic compound blade forging, characterized in that the isothermal forming method comprises the following steps:

[0022] (1) Clean and blast the surface of the intermetallic compound blank;

[0023] (2) Coating glass lubricant on the surface of the intermetallic compound blank after sand blasting;

[0024] (3) Put the intermetallic compound blank coated with glass lubricant into an electric furnace and heat to 1060°C;

[0025] (4) Put the heated intermetallic compound billet into an extrusion die and extrude it into a pre-forged billet. During extrusion, the deformation of the head of the intermetallic compound billet is 50% to form the pre-forged billet head. The extrusion ratio of the intermetallic compound billet stem is 6 to form a pre-forged billet airfoil;

[0026] (5) Cleaning and blasting the surface of the pre-forged billet;

[0027] (6) Heat up the heater on the isothermal forging die so that the temperature of t...

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Abstract

The invention relates to an isothermal forming method for an intermetallic compound blade forge piece. The isothermal forming method includes the following steps of cleaning, sand blowing, glass lubricant coating, heating, extruding to form forging stocks, cleaning, sand blowing, blade forge piece isothermal forming, cleaning, sand blowing and heat treatment. By means of the method, intermetallic compound blade forge piece forging yield can be improved, and a precision forging technological process capable of producing intermetallic compound blades with single face margin as 0.5mm+ / -0.2mm can be achieved.

Description

technical field [0001] The invention relates to an isothermal forming method of a forging, in particular to an isothermal forming method of an intermetallic compound blade forging. Background technique [0002] Intermetallic compounds have become new structural materials for developing blade forgings in recent years due to their high strength and elastic modulus at high temperatures, excellent creep resistance and oxidation resistance, and especially low density. The forging temperature of this alloy is high, and the forging temperature range is relatively narrow. Under traditional forging conditions, the heated blank is transferred to the deformation equipment, put into the mold and the subsequent deformation process, and the temperature will inevitably drop, resulting in a sharp increase in the deformation resistance of the blank. , the plasticity is reduced; if the traditional forging forming technology is used, not only the tonnage of the equipment needs to be greatly in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23P15/02B21J5/02B21J1/06
CPCB21J1/00B21K3/04
Inventor 邰清安关红汪大成李治华周浩浩
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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