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    PROCESS FOR THE PLASMA SPOT WELDING OF SURFACE-TREATED WORKPIECES AND PLASMA TORCH
    1.
    发明申请
    PROCESS FOR THE PLASMA SPOT WELDING OF SURFACE-TREATED WORKPIECES AND PLASMA TORCH 审中-公开
    表面处理工件和等离子弧焊等离子体焊接工艺

    公开(公告)号：US20100084381A1

    公开(公告)日：2010-04-08

    申请号：US12522727

    申请日：2008-01-10

    申请人： Reinhard Indraczek ,  Ferdinand Stempfer

    发明人： Reinhard Indraczek ,  Ferdinand Stempfer

    IPC分类号： B23K10/02 ,  B23K10/00

    CPC分类号： B23K10/022

    摘要： A process for plasma spot welding of surface-treated workpieces using a plasma torch comprises supplying a plasma-generating gas to the plasma torch, connecting a first terminal (−) of a current source to an electrode of the plasma torch, connecting a second terminal (+) of the current source to a workpiece, building up at least one plasma arc from the electrode of the torch toward the workpiece by applying electric current (I(t)) from the current source to an anode-cathode path between the electrode and the workpiece. The electric current (I(t)) is kept in a preprocessing current range (IV) in a phase I and, in a subsequent phase II, at a main processing current value (IH) having an the average value of which is higher than the average preprocessing current range (IV). Phase I is maintained at least until the at least partial evaporation of surface treatment layers of the workpieces in a joining zone.

    摘要翻译： 使用等离子体焰炬的表面处理的工件的等离子点焊的方法包括将等离子体产生气体供应到等离子体焰炬，将电流源的第一端（ - ）连接到等离子体焰炬的电极，将第二端 （+），通过从电流源施加电流（I（t））到电极之间的阳极 - 阴极通道，从电极的电极向工件建立至少一个等离子体电弧 和工件。 电流（I（t））保持在阶段I的预处理电流范围（IV）中，并且在随后的阶段II中，在主处理电流值（IH）下，其平均值高于 平均预处理电流范围（IV）。 至少保持相I直到在接合区域中工件的表面处理层的至少部分蒸发。

    Plasma torch system
    2.
    发明授权
    Plasma torch system 有权

    公开(公告)号：US11134559B2

    公开(公告)日：2021-09-28

    申请号：US16019424

    申请日：2018-06-26

    申请人： Ferdinand Stempfer ,  Tom-Erik Falla ,  Brede Vigdal

    发明人： Ferdinand Stempfer ,  Tom-Erik Falla ,  Brede Vigdal

    IPC分类号： B23K10/00 ,  H05H1/28 ,  B23K10/02 ,  H05H1/34 ,  H05H1/38 ,  H05H1/26 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y10/00

    摘要： Provided is a fluid-cooled melting tool that can be used in methods and systems for manufacturing objects by additive manufacturing techniques, especially titanium and titanium alloy objects. In some configurations, the melting tool is configured to be a plasma transferred arc (PTA) torch and the deposition rate can be increased by increasing the flow rate of electric charge through the electrode made possible by the dual circuit cooling design of the torch. The fluid-cooled melting tools provided herein exhibit stable and repeatable PTA characteristics over wide range of current including current of 400 amps or more, whether pulsed or non-pulsed, and plasma gas flow inputs.

    PLASMA TORCH SYSTEM
    3.
    发明申请
    PLASMA TORCH SYSTEM 审中-公开

    公开(公告)号：US20190014652A1

    公开(公告)日：2019-01-10

    申请号：US16019424

    申请日：2018-06-26

    申请人： Ferdinand STEMPFER ,  Tom-Erik FALLA ,  Brede VIGDAL

    发明人： Ferdinand STEMPFER ,  Tom-Erik FALLA ,  Brede VIGDAL

    IPC分类号： H05H1/28 ,  B23K10/02 ,  H05H1/34

    摘要： Provided is a fluid-cooled melting tool that can be used in methods and systems for manufacturing objects by additive manufacturing techniques, especially titanium and titanium alloy objects. In some configurations, the melting tool is configured to be a plasma transferred arc (PTA) torch and the deposition rate can be increased by increasing the flow rate of electric charge through the electrode made possible by the dual circuit cooling design of the torch. The fluid-cooled melting tools provided herein exhibit stable and repeatable PTA characteristics over wide range of current including current of 400 amps or more, whether pulsed or non-pulsed, and plasma gas flow inputs.

    Welding apparatus and welding method, particularly resistance welding method
    6.
    发明授权
    Welding apparatus and welding method, particularly resistance welding method 失效
    焊接设备及焊接方法，特别是电阻焊接法

    公开(公告)号：US6013891A

    公开(公告)日：2000-01-11

    申请号：US936594

    申请日：1997-09-24

    申请人： Ferdinand Stempfer

    发明人： Ferdinand Stempfer

    IPC分类号： B23K11/26 ,  B23K11/24

    CPC分类号： B23K11/26

    摘要： The invention relates to a welding apparatus (1), particularly a resistance welding apparatus, comprising a control device (2), a charging device (10), at least one energy store (22 to 24), a switching device (33 to 35) and a consumer (51), the energy store (22 to 24) being incorporated in parallel with the charging device (10) and the said energy store being connected, via the switching device (33 to 35) associated therewith and a transfer device (31) subsequent thereto, to the consumer (51), particularly a welding torch (52) with a non-melting electrode (53) and a workpiece (54). A plurality of energy stores (22 to 24) are disposed each with an associated switching device (33 to 35), and the switching devices (33 to 35) of the energy stores (22 to 24) are triggered between two charging cycles by the control device (2) for directly successive emission of at least a portion of the energy stored in one of the energy stores (22 to 24) to the consumer (51).

    摘要翻译： 本发明涉及一种焊接设备（1），特别是电阻焊接设备，包括控制设备（2），充电设备（10），至少一个能量存储器（22至24），开关设备（33至35） ）和消费者（51），所述能量存储器（22至24）与所述充电装置（10）并联并且所述能量存储器经由与其相关联的开关装置（33至35）连接，并且所述能量存储器 （31），特别是具有非熔化电极（53）和工件（54）的焊炬（52）。 多个能量存储器（22〜24）分别配置有相关联的开关装置（33〜35），能量存储部（22〜24）的开关装置（33〜35）在两次充电循环之间被触发 控制装置（2），用于将存储在一个能量存储器（22至24）中的能量的至少一部分直接连续发射到消费者（51）。