Conjoined steel and titanium via additive manufacture

公开(公告)号：
EP3819048A1
公开(公告)日：
2021-05-12
申请号：
EP2020205030
申请日：
2020-10-30
授权日：
-
受理局：
欧洲专利局
专利类型：
发明申请
简单法律状态：
审中
法律状态/事件：
实质审查
IPC分类号：
B22F5/08 | B22F7/08 | B22F10/22 | B22F10/25 | B23K15/00 | B23K26/342 | B32B15/01 | B33Y10/00 | B33Y80/00 | B22F7/00 | B23K35/00 | B23K35/30 | B23K35/32 | B33Y70/00 | B23K101/00 | B23K103/04 | B23K103/24 | C22C1/04 | C22C33/02 | F16H55/06 | B23K103/14
战略新兴产业分类：
先进有色金属材料
国民经济行业分类号：
C3516 | C3252 | C3251 | C3393
当前申请(专利权)人：
THE BOEING COMPANY
原始申请(专利权)人：
THE BOEING COMPANY
当前申请(专利权)人地址：
100 North Riverside Plaza,Chicago, IL 60606-1596,US
工商统一社会信用代码：
-
工商登记状态：
-
工商注册地址：
-
工商成立日期：
1916-07-15
工商企业类型：
-
发明人：
SIEVERS, DANIEL ELLIOTT | THOMAS, ERIC ERWIN
代理机构：
ARNOLD & SIEDSMA
代理人：
-
摘要：
A process for additive manufacture of an article including conjoined first and second metals, wherein the first metal includes one of steel and titanium and the second metal includes another of the steel and the titanium. The process comprises arranging an interface layer of a third metal on a substrate of the first metal, wherein the third metal is capable of forming an alloy with the first metal and capable of forming an alloy with the second metal. The process further comprises supplying a consumable form of the second metal to a locus of the interface layer and heating the locus of the interface layer in an nonreactive environment. In this process, the heating fuses the consumable form of the second metal to render a fused form of the second metal and joins the fused form of the second metal to the interface layer.
技术问题语段：
The technical problem addressed in this patent relates to the challenge of additive manufacturing articles comprising dissimilar conjoined metals such as steel and titanium. This involves melting the metal using a focused energy beam and controlling the placement of the melted metal in real-time to create the desired shape of the article.
技术功效语段：
The patent describes a process for additive manufacture of an article by fusing a consumable form of a second metal to a substrate of a first metal using a third metal that can form an alloy with both metals. The process involves arranging an interface layer of a third metal on the first metal, supplying the consumable form of the second metal to a locus of the interface layer, and heating the locus in a non-reactive environment to fuse the second metal to the interface layer and join it to the substrate. The article formed has a printed structure of the second metal on the substrate. The technical effect of this process is the ability to manufacture articles with conjoined first and second metals, providing improved strength and flexibility.
权利要求：
1. A process for additive manufacture of an article (310, 410, 610) including conjoined first and second metals, the first metal including one of steel and titanium and the second metal including another of the steel and the titanium, the process comprising: arranging an interface layer (322, 422) of a third metal (622) on a substrate (312, 412, 612) of the first metal, wherein the third metal (622) is capable of forming an alloy with the first metal and capable of forming an alloy with the second metal; supplying a consumable form of the second metal to a locus (332, 432) of the interface layer (322, 422); and heating the locus (332, 432) of the interface layer (322, 422) in an non-reactive environment (340, 440), wherein the heating fuses the consumable form of the second metal to render a fused form (314, 414) of the second metal and joins the fused form (314, 414) of the second metal to the interface layer (322, 422). 2. The process of claim 1, wherein the interface layer (322, 422) comprises one or more of vanadium, niobium, and tantalum. 3. The process of claim 1 or 2, wherein heating the locus (332, 432) of the interface layer (322, 422) causes dissolution of a portion of the interface layer (322, 422) into the fused form (314, 414) of the second metal. 4. The process of any of the preceding claims, wherein heating the locus (332, 432) of the interface layer (322, 422) joins the interface layer (322, 422) to the substrate (312, 412, 612) and causes dissolution into the substrate (312, 412, 612) of a portion of the interface layer (322, 422). 5. The process of any of the preceding claims, further comprising pre-welding the interface layer (322, 422) to the substrate (312, 412, 612) in the non-reactive environment (340, 440) prior to supplying the consumable form of the second metal to the locus (332, 432), wherein the pre-welding causes dissolution into the substrate (312, 412, 612) of a portion of the interface layer (322, 422). 6. The process of any of the preceding claims, wherein the non-reactive environment (440) includes an environment of flowing argon. 7. The process of any of the preceding claims, wherein heating the locus (332, 432) of the interface layer (322, 422) comprises heating with a laser beam. 8. The process of any of the preceding claims, wherein heating the locus (332, 432) of the interface layer (322, 422) comprises heating with an electron beam. 9. The process of any of the preceding claims, wherein the interface layer (422) includes a foil. 10. The process of any of the preceding claims, wherein the steel includes an alloy steel, and wherein the titanium includes about 6% aluminum and 4% vanadium by mass. 11. The process of any of the preceding claims, wherein the consumable form of the second metal includes a particulate (326), and wherein the fused form (414) of the second metal includes a fused particulate. 12. An article (310, 410, 610) comprising: a substrate (312, 412, 612) of a first metal; and a printed structure (614) of a second metal formed by fusion of a consumable form of the second metal and concurrently joined to the substrate (612) via a partially dissolved layer of a third metal (622), wherein the third metal (622) penetrates at least the substrate (612), wherein the first metal includes one of steel and titanium, and wherein the second metal includes another of the steel and the titanium. 13. The article (310, 410, 610) of claim 12, wherein the third metal (622) includes one or more or vanadium, niobium, and tantalum. 14. The article (310, 410, 610) of claim 12 or 13, wherein the third metal (622) also penetrates the printed structure. 15. The article (310, 410, 610) of any of the claims 12-14, wherein the substrate (612) comprises a gear shaft (212), and the printed structure comprises a sprocket (214).
技术领域：
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背景技术：
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发明内容：
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具体实施方式：
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