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For metal droplet deposition increases material manufacture metal flow in the intermittent random change, intermittent morphology parameters, such as difficult to control and forecast of the existing problems, the method of combining the theoretical analysis and experimental study of metal flow discontinuous intermittent morphology and its influencing factors in the process of pulse pressure, pulse frequency are studied, reveals the discontinuous morphology length distribution. Results show that by adjusting the pulse pressure and pulse frequency, and can improve the metal flow of fracture shape accuracy and dimensional accuracy, can provide stability for the subsequent manufacturing process of uniform micro drip.