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    • 4. 发明授权
    • Method and apparatus for determining stability of arc welding
    • 确定电弧焊接稳定性的方法和装置
    • US6031203A
    • 2000-02-29
    • US175564
    • 1998-10-20
    • Yukimitsu SuzukiKatsunori MiyazakiTaro Kamiya
    • Yukimitsu SuzukiKatsunori MiyazakiTaro Kamiya
    • B23K9/073B23K9/095
    • B23K9/073
    • A method and apparatus for determining the stability of arc welding between a base metal and a welding electrode. A welding current for the arc period and a welding current for the short-circuit period fed from a welding power source are sampled every cycle of the repetition of arc and short-circuit, in accordance with a predetermined sampling frequency. The welding current for the arc period is integrated, and a standard deviation of the integrated welding current for the arc period is calculated. The standard deviation of the integrated welding current for the short-circuit period is calculated, as well. These standard deviations are multiplied together to produce a product, so that a welding stability parameter is calculated on the basis of the product. Then, the welding stability parameter is compared with a predetermined reference value. In response to the result of comparison, the welding stability between the base metal and the welding electrode is determined. A time ratio of the arc period and the short-circuit period may be calculated every cycle of the repetition of arc and short-circuit, and a standard deviation of the time ratio may be calculated. Then, the product may be multiplied by the standard deviation of the time ratio to calculate the welding stability parameter.
    • 用于确定贱金属和焊接电极之间的电弧焊接的稳定性的方法和装置。 根据预定的采样频率,对电弧周期的焊接电流和从焊接电源馈送的短路时段的焊接电流进行采样,每个周期的电弧和短路重复。 电弧期的焊接电流积分,计算出电弧周期的整体焊接电流的标准偏差。 也计算了短路时段内集成焊接电流的标准偏差。 将这些标准偏差相乘以产生产品,从而基于产品计算焊接稳定性参数。 然后,将焊接稳定性参数与预定的参考值进行比较。 响应于比较的结果,确定了母材和焊接电极之间的焊接稳定性。 可以在电弧和短路的重复循环中计算电弧周期和短路周期的时间比,并且可以计算时间比的标准偏差。 然后,乘积乘以时间比的标准偏差,计算焊接稳定性参数。