SYSTEMS AND METHODS TO PREHEAT WELDING WIRE
    1.
    发明公开

    公开(公告)号:EP4349518A3

    公开(公告)日:2024-08-07

    申请号:EP24158465.5

    申请日:2018-04-27

    IPC分类号: B23K9/173 B23K9/10

    CPC分类号: B23K9/1093 B23K9/173

    摘要: A contact tip assembly with a preheating tip comprises a welding-type power source configured to provide welding-type current to a welding-type circuit, the welding-type circuit comprising a welding-type electrode and a first contact tip of a welding torch. The assembly also includes an electrode preheating circuit configured to provide preheating current through a portion of the welding-type electrode via a second contact tip of the welding torch, and a voltage sense circuit to monitor a voltage drop across the two contact tips, and the electrode preheating circuit adjusts at least one of the first current or the preheating current based on the voltage drop.

    WELDING WIRE PREHEATING SYSTEM AND METHOD
    3.
    发明公开
    WELDING WIRE PREHEATING SYSTEM AND METHOD 审中-公开
    VORWÄRMSYSTEMUNDERVERHRENFÜRSCHWEISSDRAHT

    公开(公告)号:EP2953760A1

    公开(公告)日:2015-12-16

    申请号:EP14704270.9

    申请日:2014-01-31

    IPC分类号: B23K9/10

    摘要: In a welding system, a preheating process is carried out prior to initiation of a welding arc, such as upon depression of a trigger or switch on a welding torch. The preheating process involves generation and application of desired currents and voltages to a welding electrode from a power supply. Preheating is continued until the welding electrode reaches a desired temperature or resistance, which may be determined by reference to an increasing voltage, a decreasing current, a peaked and declining voltage, resistance and/or power measurements, and so forth. Following preheating, a desired welding process may begin with initiation of the welding arc.

    摘要翻译: 在焊接系统中,在焊接电弧开始之前进行预热处理,例如在焊炬上按下触发器或开关时。 预热过程包括从电源产生并施加期望的电流和电压到焊接电极。 继续预热直到焊接电极达到所需的温度或电阻,这可以参考增加的电压,降低的电流,峰值和下降的电压,电阻和/或功率测量等来确定。 在预热之后,期望的焊接过程可以从焊接电弧的开始开始。

    Verfahren zum Metallschutzgasschweißen
    5.
    发明公开
    Verfahren zum Metallschutzgasschweißen 审中-公开
    一种用于气体保护金属极电弧焊接方法

    公开(公告)号:EP2810733A2

    公开(公告)日:2014-12-10

    申请号:EP14001686.6

    申请日:2014-05-13

    发明人: Siewert, Erwan

    摘要: Die vorliegende Erfindung betrifft ein Verfahren zum Metallschutzgasschweißen, wobei eine Drahtelektrode (110) mit einem Schweißstrom bestromt wird und die Drahtelektrode (110) durch einen Lichtbogen (120) aufgeschmolzen wird, wobei mindestens ein Parameter, der eine Joulesche Wärme der Drahtelektrode (100) beeinflusst, eingestellt wird.

    摘要翻译: 本发明涉及用于气体金属电弧焊的方法,其中,线电极(110)被激励与由电弧(120)的焊接电流和线电极(110)熔融,其特征在于,影响所述线电极的焦耳热(100)的至少一个参数 设置。

    YAG LASER INDUCED ARC FILLER WIRE COMPOSITE WELDING METHOD AND WELDING EQUIPMENT
    6.
    发明公开
    YAG LASER INDUCED ARC FILLER WIRE COMPOSITE WELDING METHOD AND WELDING EQUIPMENT 有权
    YAG激光诱导电弧填丝复合焊接方法及焊接设备

    公开(公告)号:EP1498214A1

    公开(公告)日:2005-01-19

    申请号:EP03715707.0

    申请日:2003-04-01

    IPC分类号: B23K26/20 B23K9/173 B23K28/02

    摘要: A combined welding method with a filler wire using both a YAG laser and an electric arc, and a combined welding device with a filler wire using both a YAG laser and an electric arc, a welding in which a welding gap margin is broad, height and shape of reinforcement of weld, and penetration depth are preferable, can be effectively performed by the method or the device. The welding is performed by directing a laser focus 8 of a YAG laser 9 on base materials 31 and 32 for welding or the vicinity of the focus 8 by a filler wire 20, connecting a power source 22 for applying a voltage to the filler wire between the filler wire 20 and the base materials for welding, irradiating a YAG laser on the base materials for welding in the connecting condition, whereby an arc is induced to the filler wire by a plume (plasma-activated gas and the metal vapor), and holding the plume generated by YAG laser inside and outside of a keyhole.

    摘要翻译: 使用YAG激光器和电弧两者的填充焊丝的组合焊接方法以及使用YAG激光器和电弧两者的具有填充焊丝的组合焊接装置,焊接间隙边缘宽,高度和 焊接强化的形状和渗透深度是优选的,可以通过该方法或装置有效地进行。 通过将YAG激光器9的激光焦点8引导到用于焊接的基材31和32上或通过填充焊丝20将焦点8的附近引导,将用于施加电压的电源22连接到填充焊丝之间 填充焊丝20和焊接用基材,在连接状态下对基材进行YAG激光照射,由此通过羽流(等离子体活性气体和金属蒸气)向填充焊丝引起电弧, YAG激光器在钥匙孔内外产生的羽流。

    AC tig welding apparatus using hot wire
    8.
    发明公开
    AC tig welding apparatus using hot wire 失效
    AC TIG焊接设备使用热线

    公开(公告)号:EP0316936A3

    公开(公告)日:1989-07-05

    申请号:EP88119216.5

    申请日:1988-11-18

    IPC分类号: B23K9/10 B23K9/09

    CPC分类号: B23K9/1093 B23K9/091

    摘要: An AC TIG welding apparatus using a hot wire is disclosed. An unconsumable electrode (5) such as of tungsten is arranged in opposedly spaced relationship with a base metal (6) to be welded. An AC arc welding power supply (2) is connected between the base metal (6) and the unconsumable electrode (5). A filler wire (9) such as of aluminum is fed toward an arc-generated part between the base metal (6) and the unconsumable electrode (5). A wire feeder (8) supplies the filler wire (9). An unconsumable-­electrode welding apparatus comprising the above-mentioned devices further comprises a wire-heating power supply (3) for producing a pulsed current. The wire heating power supply (3) heats the filler wire (9) by supplying thereto a pulsed current in accordance with a synchronous signal from the AC arc welding power supply (2) or a detection signal of an arc current i A or an arc voltage of the AC arc power supply (2).The filler wire (9) is thus heated by being supplied with a heating current i W in pulse form while the unconsumable electrode (5) is kept negative by an AC arc (7) formed between the unconsumable electrode (5) and the base metal (6). During the period when the unconsum­able electrode (5) is kept positive by the AC arc (7), on the other hand, the filler wire (9) is not supplied with any current or is heated by being supplied only with a sufficiently small current not to cause any substantial magnetic flow. Accordingly, even if a large current flows through the wire (9), arc interruptions can be eliminated, thereby improving the welding process of aluminum by using an AC TIG arc.