Fe-al-based alloy vibration-damping component and method for manufacturing same

A manufacturing method, fe-al technology, applied in the direction of manufacturing tools, additive manufacturing, furnaces, etc., which can solve problems such as complex shapes

Active Publication Date: 2021-12-31
株式会社博迈立铖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there is a tendency that in order to further improve the vibration damping effect of the above-mentioned damping parts, for example, a complex shape such as providing a space inside the part is required.

Method used

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  • Fe-al-based alloy vibration-damping component and method for manufacturing same
  • Fe-al-based alloy vibration-damping component and method for manufacturing same
  • Fe-al-based alloy vibration-damping component and method for manufacturing same

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Embodiment

[0041] Gas atomized powders containing 6.43%, 8.32%, and 10.40% of Al in mass % and the remainder containing Fe and unavoidable impurities were produced and classified into 10 μm to 53 μm. Gas atomization is carried out in the following manner: high-frequency dissolution is performed in vacuum, the molten alloy is dropped from a nozzle with a diameter of 5 mm under the crucible, and sprayed with high-pressure argon gas. Using this as a raw material powder, using a three-dimensional lamination molding machine (manufactured by EOS Corporation, EOS-M290), using S45C as a base plate, a powder bed method was used to produce a width of 10mm, a length of 120mm, and a stacking height of 20mm by high-speed melting and rapid solidification by laser irradiation. The elongated shape of the body ( figure 1 ). The lamination thickness of each layer was 40 μm, and the irradiation direction was rotated by 67° for each layer. The diameter of the laser beam is about 0.1mm, and the laser outpu...

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Abstract

The present invention provides: an Fe-Al-based vibration-damping component containing little solidification defects, exhibiting good vibration-damping performance even in the presence of remaining solidification defects, and having an irregular cross-sectional shape; and a method for manufacturing the vibration-damping component. The Fe-Al-based alloy vibration-damping component comprises 4.0-12.0% by mass of Al with the balance Fe and inevitable impurities, has an average crystal grain size in the range of over 700 um to 2,000 um, has a cross-sectional defect rate of lower than 0.1%, and has an irregular cross-sectional shape. In the Fe-Al-based alloy vibration-damping component and the method for manufacturing the vibration-damping component, the method is for obtaining the vibration-damping component having an irregular cross-sectional shape and includes a shaping step in which a metal powder comprising 4.0-12.0% by mass of Al with the balance Fe and inevitable impurities is melted using a heat source set to a scanning rate of 700-1,700 mm / second and is solidified to obtain a shaped product and an annealing step in which the shaped product is annealed at a temperature of 800-1200deg C.

Description

technical field [0001] The invention relates to a Fe-Al alloy damping part and a manufacturing method thereof. Background technique [0002] As a vibration countermeasure for improving the quietness of vehicles such as automobiles and improving the finishing accuracy of cutting machines and the like, there is a demand for metal materials excellent in vibration damping properties. Examples of such damping alloys include Fe—Al alloys, Fe—Cr—Al alloys, and Fe—Co—V alloys, and these alloys are well known as ferromagnetic type damping alloys. Since all are materials with large magnetostriction, the magnetic wall in the material moves due to magnetostriction corresponding to the magnitude of the strain accompanying the vibration, thereby absorbing the elastic energy of the vibration. As another vibration damping alloy, there is a Mn—Cu alloy, but this utilizes twin crystal deformation in thermoelastic martensitic transformation, and the vibration damping effect disappears when th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B22F3/16B22F3/24C21D9/00C22C38/00C22C38/06B33Y10/00B33Y80/00
CPCB33Y80/00B33Y10/00C21D9/00C22C38/06C22C38/00C22C33/0257C22C33/0285B22F10/20B22F2998/10Y02P10/25B22F10/25B22F10/28B33Y70/00B33Y40/20B22F10/64B22F2301/35
Inventor 西田纯一桑原孝介
Owner 株式会社博迈立铖
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