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1. 发明专利

JP2004130390A Cv control type welding method and apparatus 有权
公开(公告)号：JP2004130390A
公开(公告)日：2004-04-30
申请号：JP2003351155
申请日：2003-10-09
申请人： Illinois Tool Works Inc , イリノイトゥールワークスインコーポレイティド
发明人： DAVIDSON ROBERT R , UECKER JAMES , HOLVERSON TODD
IPC分类号： B23K9/09 , B23K9/095 , B23K9/10 , H02M9/00
CPC分类号： B23K9/1062 , B23K9/091 , B23K9/092 , B23K9/0953 , B23K9/0956 , B23K9/1006
摘要： PROBLEM TO BE SOLVED: To provide a welding method and a welding apparatus for controlling an arc in high speed response. SOLUTION: In the welding method and apparatus, the output is preferably an periodic CV (Voltage Controlled) MIG (Metal Inert Gas) output, and each cycle is divided into a plurality of segments. The output parameters are sampled a plurality of times in the inside of the one or more segments. The CV output is controlled in the inside of at least one segment so as to respond to the above sampling. In various implementations, the parameters are output power, load resistance, output current, output voltage or their functions. The control loop is preferably a PI (Proportional and Integral) loop or an PID (Proportional Integral and Differential) loop. The loop can be added only in the insides of windows. The set point may be commanded, or may be fixed. The system can be used for welding having a controlled arc length. COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2011230196A Method and apparatus for stopping welding process 审中-公开
标题翻译：用于停止焊接工艺的方法和装置
公开(公告)号：JP2011230196A
公开(公告)日：2011-11-17
申请号：JP2011185020
申请日：2011-08-26
申请人： Illinois Tool Works Inc , イリノイトゥールワークスインコーポレイティド
发明人： HOLVERSON TODD , MEHN PETER
IPC分类号： B23K9/00 , B23K9/173 , B23K9/073 , B23K9/09 , B23K9/095 , B23K9/12
CPC分类号： B23K9/125
摘要： PROBLEM TO BE SOLVED: To prevent the forming of a ball with a large diameter at stopping welding.SOLUTION: The output current is commanded to a level sufficient to clear a short circuit if a short circuit forms when the process is stopping (212). A low current level is commanded after the short circuit has cleared (216). The low current level is sufficiently low to prevent the forming of a large ball. This is repeated until a short circuit does not form. The wire feed speed is monitored, and the stopping process begins when the wire feed speed drops below a threshold. The stopping process is performed with an MIG process, a pulsed spray process, and a short circuit transfer welding process. The arc voltage is monitored to determine the status of the arc. The motor is commanded to stop in response to receiving a user provided stop command, and the braking of the motor is controlled. At least one output parameter may be reduced before the threshold is reached, but after receiving the stop signal.
摘要翻译：要解决的问题：为了防止在停止焊接时形成具有大直径的球。
解决方案：当过程停止时，输出电流被命令到足以清除短路的电平（212）。在短路清零后，指令为低电平（216）。低电流水平足够低以防止形成大的球。这是重复的，直到没有形成短路。监视送丝速度，当送丝速度低于阈值时停止过程开始。停止过程使用MIG工艺，脉冲喷涂工艺和短路转移焊接工艺进行。监测电弧电压以确定电弧的状态。响应于接收到用户提供的停止命令，指令电机停止，并且控制电动机的制动。在达到阈值之前，但是在接收到停止信号之后，至少可以减少一个输出参数。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2003290927A Method and apparatus for welding 审中-公开
标题翻译：焊接方法与装置
公开(公告)号：JP2003290927A
公开(公告)日：2003-10-14
申请号：JP2003088046
申请日：2003-03-27
申请人： Illinois Tool Works Inc , イリノイトゥールワークスインコーポレイティド
发明人： HOLVERSON TODD , NIKODYM ANTHONY , ZHANG LIN , BARHORST STEVEN , REYNOLDS JON
IPC分类号： B23K9/173 , B23K9/02 , B23K9/09 , B23K9/10 , B23K35/368
CPC分类号： B23K9/0213 , B23K9/092 , B23K9/1043
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus for MIG welding using an AC power source to obtain a high deposition rate. SOLUTION: When in an AC mode, the output is unbalanced, or the balance may be controlled. The balance may be controlled to provide a desired deposition rate and/or to obtain a desired dilution. The frequency may be any frequency, for example, 30 Hz, 60 Hz, 90 Hz, or more. The weld path may have groove with angle of less than 50 degrees. A consumable cored wire may be used, and provide at rates of 13.6 kg or 15.9 kg per hour using a single arc. In various embodiments, the balance may have a negative portion of at least 1.5 times the positive portion. The process may be started using an extended negative portion, for example, 0.5 or 0.75 second. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种使用AC电源的MIG焊接的方法和装置，以获得高沉积速率。
解决方案：当处于AC模式时，输出不平衡，或者可以控制天平。可以控制余量以提供期望的沉积速率和/或获得期望的稀释度。频率可以是任何频率，例如30Hz，60Hz，90Hz或更高。焊接路径可以具有小于50度的角度的凹槽。可以使用可消耗的芯线，并且使用单个弧提供13.6kg或15.9kg /小时的速率。在各种实施例中，天平可以具有至少1.5倍正极部分的负极部分。该过程可以使用扩展的负部分开始，例如0.5或0.75秒。版权所有（C）2004，JPO

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