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    METHOD AND APPARATUS FOR INCREASING THE RESOLUTION IN ADDITIVELY MANUFACTURED THREE-DIMENSIONAL ARTICLES
    3.
    发明公开
    METHOD AND APPARATUS FOR INCREASING THE RESOLUTION IN ADDITIVELY MANUFACTURED THREE-DIMENSIONAL ARTICLES 有权
    方法和设备用于提高分辨率的三维制品MANUFACTURED添加剂

    公开(公告)号：EP2804744A1

    公开(公告)日：2014-11-26

    申请号：EP12795808.0

    申请日：2012-12-04

    Applicant: ARCAM AB

    Inventor： ACKELID, Ulf

    IPC: B29C67/00 ,  B22F3/105

    CPC classification number: B22F3/1055 ,  B22F3/1039 ,  B22F3/105 ,  B22F3/24 ,  B22F2201/10 ,  B22F2201/11 ,  B22F2201/12 ,  B22F2201/20 ,  B22F2999/00 ,  B23K15/00 ,  B23K26/342 ,  B29C64/00 ,  B29C64/153 ,  B29C67/00 ,  B33Y30/00 ,  Y02P10/295 ,  Y10T428/12028 ,  B22F2201/013 ,  B22F2201/02 ,  B22F2201/30 ,  B22F2201/04 ,  B22F2201/016

    Abstract: A method for increasing the resolution when forming a three-dimensional article through successive fusion of parts of a powder bed, said method comprising providing a vacuum chamber, providing an electron gun, providing a first powder layer on a work table inside said vacuum chamber, directing an electron beam from said electron gun over said work table causing the powder layer to fuse in selected locations to form a first cross section of said three-dimensional article, providing a second powder layer on said work table, directing the electron beam over said work table causing said second powder layer to fuse in selected locations to form a second cross section of said three-dimensional article, reducing the pressure in the vacuum chamber from a first pressure level to a second pressure level between the providing of said first powder layer and said second powder layer.

    Abstract translation: 一种用于提高分辨率当形成穿过粉末床的各部分的连续融合的三维制品的方法，所述方法包括提供一个真空室，在电子枪提供，在所述真空腔室内部的工作台提供第一粉末层， 引导至电子从所述电子枪在所述工作台光束使所述粉末层在选定的位置熔合以形成所述三维制品的第一横截面，从而提供在所述工作台的第二粉末层，在所述引导所述电子束 工作台使所述第二粉末层在选定的位置熔合以形成所述三维物品的第二横截面，减少的压力在所述真空室由第一压力水平的第二压力水平。所述第一粉末层的提供之间 和所述第二粉末层。

    HIGH-STRENGTH CEMENTED CARBIDE AND PROCESS FOR PRODUCING THE SAME
    7.
    发明公开
    HIGH-STRENGTH CEMENTED CARBIDE AND PROCESS FOR PRODUCING THE SAME 审中-公开
    HCHEESTES HARTMETALL UND HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号：EP1932930A1

    公开(公告)日：2008-06-18

    申请号：EP06797858.5

    申请日：2006-09-12

    Applicant: Sanalloy Industry Co., Ltd.

    Inventor： IWASAKI, Masahiro ,  YANAGITA, Hidefumi ,  IKEBE, Masaaki

    IPC: C22C1/05 ,  B22F3/10 ,  B22F3/24 ,  C22C29/08

    CPC classification number: C22C1/051 ,  B22F2003/242 ,  B22F2998/10 ,  B22F2999/00 ,  C22C29/067 ,  C22C29/08 ,  B22F3/02 ,  B22F3/10 ,  B22F1/0088 ,  B22F3/1035 ,  B22F3/24 ,  B22F2201/30 ,  B22F2201/02 ,  B22F2201/016

    Abstract: The present invention provides a WC-Co system (the WC-Co system in the present invention means that it comprises not only hard grains composed mainly of WC and iron group metal powder containing Co, but also at least one kind selected from carbide, nitride, carbonitride and boride of elements in Groups IVa, Va and VIa of the Periodic Table, excluding WC, as hard grains) cemented carbide having high strength and high toughness which is excellent in wear resistance, toughness, chipping resistance and thermal crack resistance.
    A WC-Co system compact containing an M 12 C to M 3 C type double carbide (M represents one or more kinds selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W, and one or more kinds selected from the group consisting of Fe, Co and Ni) as a main component of the surface layer portion is subjected to a carburization treatment, and then subjected to liquid phase sintering so as to adjust the mean grain size of the surface layer WC depending on a liquid crystal sintering temperature as an indicator.

    Abstract translation: 本发明提供一种WC-Co体系（本发明中的WC-Co系不仅包含由WC组成的硬质粒子和含有Co的铁族金属粉末，而且还包含选自碳化物，氮化物 ，元素周期表第IVa，Va和VIa族元素的碳氮化物和硼化物，WC除外，作为硬晶粒）耐磨性，韧性，耐崩裂性和耐热裂纹性优异的高强度和高韧性的硬质合金。 含有M 12 C〜M 3 C型双碳化物的WC-Co系压实体（M表示选自Ti，Zr，Hf，V，Nb，Ta，Cr，Mo和W中的一种或多种，​​以及 从由Fe，Co和Ni组成的组中选择的一种或多种）作为表层部分的主要成分进行渗碳处理，然后进行液相烧结，以调节表面的平均晶粒尺寸 层WC取决于液晶烧结温度作为指标。

    A PRE-ALLOYED IRON- BASED POWDER, AN IRON-BASED POWDER MIXTURE CONTAINING THE PRE-ALLOYED IRON-BASED POWDER AND A METHOD FOR MAKING PRESSED AND SINTERED COMPONENTS FROM THE IRON-BASED POWDER MIXTURE
    9.
    发明公开
    A PRE-ALLOYED IRON- BASED POWDER, AN IRON-BASED POWDER MIXTURE CONTAINING THE PRE-ALLOYED IRON-BASED POWDER AND A METHOD FOR MAKING PRESSED AND SINTERED COMPONENTS FROM THE IRON-BASED POWDER MIXTURE 审中-公开
    预合金铁基粉末，含有预合金铁基粉末的铁基粉末混合物以及由铁基粉末混合物制备压制和烧结组分的方法

    公开(公告)号：EP3194631A1

    公开(公告)日：2017-07-26

    申请号：EP15763914.7

    申请日：2015-09-15

    Applicant: Höganäs AB (publ)

    Inventor： BERGMAN, Ola

    IPC: C22C33/02 ,  C22C38/04 ,  C22C38/12 ,  C22C38/22 ,  B22F5/08

    CPC classification number: C22C33/0228 ,  B22F5/08 ,  B22F2003/241 ,  B22F2003/248 ,  B22F2998/10 ,  B22F2999/00 ,  C22C33/0264 ,  C22C38/04 ,  C22C38/12 ,  C22C38/22 ,  B22F2201/30 ,  B22F2201/016 ,  B22F3/02 ,  B22F3/1007 ,  B22F3/16 ,  B22F2201/01

    Abstract: The present invention provides a low cost pre-alloyed iron based powder which has high compressibility, capable of rendering a compacted and sintered component high green density, (GD), and high sintered density, (SD). Also, a method or process for producing components, especially gears, including compaction of powder mixture containing the pre-alloyed iron-based powder, sintering of the compacted component, Low Pressure carburizing, (LPC), High Pressure Gas Quenching, (HPGQ), and tempering, is provided. In one embodiment, the process includes high temperature sintering. Other aspects of the present invention include a powder mixture containing the pre-alloyed iron based powder and components produced by the new process from the powder mixture. Such carburized components exhibit a hard surface combined with a softer and tougher core, necessary properties for e.g. automotive gears subjected to harsh environment.

    Abstract translation: 本发明提供了一种低成本的预合金铁基粉末，其具有高压缩性，能够使致密烧结组分具有高生坯密度（GD）和高烧结密度（SD）。 另外，本发明涉及一种用于制造构件特别是齿轮的方法或工艺，所述构件包括包含预合金化铁基粉末的粉末混合物的压实，压实组分的烧结，低压渗碳（LPC），高压气体淬火（HPGQ） ，并提供锻炼。 在一个实施例中，该工艺包括高温烧结。 本发明的其它方面包括含有预合金铁基粉末的粉末混合物和由粉末混合物通过新方法生产的组分。 这种渗碳组分表现出与较软和较坚韧的芯结合的坚硬表面，对例如 汽车齿轮受到恶劣的环境影响。

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