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公开(公告)号：US10576565B2
公开(公告)日：2020-03-03
申请号：US15273923
申请日：2016-09-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： James G. Schroth , Thomas A. Perry , Hongliang Wang , Chen Zhou
IPC: B23K26/211 , B23K1/00 , B23K1/18 , B23K1/005 , B23K101/32 , B23K103/12
Abstract: A method of forming a weld interface between a first workpiece and a second workpiece includes arranging a reactive braze material at a first joining surface of the first workpiece. The reactive material is selected to react upon being heated to a temperature below the solidus temperature of the first and second workpieces to form a liquid-containing reaction product. Furthermore, an assembly is prepared of the first workpiece and the second workpiece with the first joining surface of the first workpiece and a second joining surface of the second workpiece separated by the reactive material. The second workpiece is then heated with a first laser beam following a first path and with a second laser beam following a second path.
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公开(公告)号：US20190036429A1
公开(公告)日：2019-01-31
申请号：US15659003
申请日：2017-07-25
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Hongliang Wang , Chen Zhou , Xingcheng Xiao
IPC: H02K15/02 , B23K26/00 , B23K26/352 , C23C4/12
Abstract: Methods of manufacturing electrically conductive copper components for electric devices and method of joining electrically conductive copper components are provided. Each of the electrically conductive copper components are manufactured to include a preexisting coating of joining material located on or adjacent to a joining surface thereof.
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公开(公告)号：US09548150B2
公开(公告)日：2017-01-17
申请号：US13786807
申请日：2013-03-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chen Zhou , Frederick E. Pinkerton , Jan F. Herbst
CPC classification number: H01F1/0593
Abstract: New magnetic materials containing cerium, iron, and small additions of a third element are disclosed. These materials comprise compounds Ce(Fe12−xMx) where x=1-4, having the ThMn12 tetragonal crystal structure (space group I4/mmm, #139). Compounds with M=B, Al, Si, P, S, Sc, Co, Ni, Zn, Ga, Ge, Zr, Nb, Hf, Ta, and W are identified theoretically, and one class of compounds based on M=Si has been synthesized. The Si cognates are characterized by large magnetic moments (4πMs greater than 1.27 Tesla) and high Curie temperatures (264≦Tc≦305° C.). The Ce(Fe12−xMx) compound may contain one or more of Ti, V, Cr, and Mo in combination with an M element. Further enhancement in Tc is obtained by nitriding the Ce compounds through heat treatment in N2 gas while retaining the ThMn12 tetragonal crystal structure; for example CeFe10Si2N1.29 has Tc=426° C.
Abstract translation: 公开了含有铈，铁和少量添加第三元素的新的磁性材料。 这些材料包括具有ThMn12四方晶系结构（空间群I4 / mmm，＃139）的x = 1-4的化合物Ce（Fe12-xMx）。 理论上确定M = B，Al，Si，P，S，Sc，Co，Ni，Zn，Ga，Ge，Zr，Nb，Hf，Ta和W的化合物，一类基于M = Si 已被合成。 Si同系物的特征在于大磁矩（4πMs大于1.27特斯拉）和高居里温度（264≤Tc≤305℃）。 Ce（Fe12-xMx）化合物可以含有与M元素组合的Ti，V，Cr和Mo中的一种或多种。 通过在N 2气中热处理氮化Ce化合物同时保留ThMn12四方晶体结构，可以进一步提高Tc; 例如CeFe10Si2N1.29具有Tc = 426℃
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公开(公告)号：US20160008911A1
公开(公告)日：2016-01-14
申请号：US14789134
申请日：2015-07-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： James G. Schroth , Thomas A. Perry , Chen Zhou
CPC classification number: C22C9/00 , B23K9/042 , B23K20/165 , B23K35/302
Abstract: A method of pre-placing a reaction material onto a surface of a metal workpiece substrate involves the use of oscillating wire arc welding. The method involves depositing and adhering the reaction material from a consumable electrode rod. In doing so, the reaction material can be deposited at any time before the metal workpiece substrate is ready for joining by reaction metallurgical joining, and the size and shape of the reaction material deposit can be more easily controlled.
Abstract translation: 将反应材料预放置在金属工件基板的表面上的方法涉及使用振荡焊丝电弧焊接。 该方法包括从可消耗电极棒沉积和粘附反应材料。 在这样做时，反应材料可以在金属工件基片准备好通过反应冶金接合准备接合之前随时沉积，并且可以更容易地控制反应材料沉积物的尺寸和形状。
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