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1. WO2021057606 - METHOD FOR LASER IMPACT STRENGTHENING BIPHASE TITANIUM ALLOY ADDITIVE COMPONENT

Publication Number WO/2021/057606
Publication Date 01.04.2021
International Application No. PCT/CN2020/116028
International Filing Date 18.09.2020
IPC
C21D 10/00 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
10Modifying the physical properties by methods other than heat treatment or deformation
B22F 3/24 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
24After-treatment of workpieces or articles
B33Y 40/00 2020.01
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
40Auxiliary operations or equipment, e.g. for material handling
CPC
B22F 3/24
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; ; Presses and furnaces
24After-treatment of workpieces or articles
B33Y 40/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
40Auxiliary operations or equipment, e.g. for material handling
C21D 10/005
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
10Modifying the physical properties by methods other than heat treatment or deformation
005by laser shock processing
Applicants
  • 江苏大学 JIANGSU UNIVERSITY [CN]/[CN]
Inventors
  • 鲁金忠 LU, Jinzhong
  • 卢海飞 LU, Haifei
  • 张显程 ZHANG, Xiancheng
  • 罗开玉 LUO, Kaiyu
  • 杨光 YANG, Guang
Agents
  • 南京智造力知识产权代理有限公司 NANJING IPZHI INTELLECTUAL PROPERTY AGENCY CO., LTD.
Priority Data
201910923611.627.09.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD FOR LASER IMPACT STRENGTHENING BIPHASE TITANIUM ALLOY ADDITIVE COMPONENT
(FR) PROCÉDÉ DE RENFORCEMENT PAR CHOCS LASER D'UN COMPOSANT FABRIQUÉ ADDITIVEMENT EN ALLIAGE DE TITANE BIPHASIQUE
(ZH) 一种双相钛合金增材构件激光冲击强化方法
Abstract
(EN)
The present invention relates to the fields of additive manufacturing and laser impact strengthening, in particular to a method for laser impact strengthening a biphase titanium alloy additive component. The method involves firstly obtaining a three-dimensional digital model of a complex component, and dividing the model into a plurality of slice layers; determining the forming direction of a formed part during additive manufacturing according to the stress direction of the additive component in engineering applications; then finishing forming and manufacturing of the biphase titanium alloy component by using a selective laser melting process, and enabling the alpha phase C-axis orientation to be consistent through regulation and control; and finally, using a laser impact strengthening process and inducing the direction of action of a high intensity shock wave to form an included angle within a specific range with the alpha phase C-axis, and performing impact strengthening on all external surfaces of the biphase titanium alloy high-performance additive component, and thereby achieving the optimal strengthening effect.
(FR)
La présente invention concerne les domaines de la fabrication additive et du renforcement par chocs laser, en particulier un procédé de renforcement par chocs laser d'un composant fabriqué additivement en alliage de titane biphasique. Le procédé consiste d'abord à obtenir un modèle numérique tridimensionnel d'un composant complexe et à diviser le modèle en une pluralité de couches de tranche ; à déterminer la direction de formation d'une pièce formée pendant la fabrication additive en fonction de la direction de contrainte du composant additif dans des applications techniques ; puis à former et à fabriquer le composant en alliage de titane biphasique par un procédé de fusion sélective par laser et à permettre que l'orientation suivant l'axe C de la phase alpha demeure cohérente par régulation et commande ; et enfin, à utiliser un procédé de renforcement par chocs laser et à induire la direction d'action d'une onde de choc à haute intensité pour former un angle inclus dans une plage spécifique avec l'axe C de la phase alpha, et à effectuer un renforcement par chocs sur toutes les surfaces externes du composant fabriqué additivement à haute performance en alliage de titane biphasique, ce qui permet d'obtenir un effet de renforcement optimal.
(ZH)
本发明涉及增材制造领域以及激光冲击强化领域,特指一种双相钛合金增材构件激光冲击强化方法。首先获取复杂构件的三维数字模型,将模型分成若干片层;根据增材构件在工程应用中的受力方向,确定增材制造过程中成形件成形方向;然后采用选区激光熔化工艺完成双相钛合金构件的成形制造,并通过调控使α相C轴取向一致;最后采用激光冲击强化工艺并诱导高强冲击波作用方向与α相C轴形成特定范围的夹角,对双相钛合金高性能增材构件所有外表面进行冲击强化,从而达到最佳强化效果。
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