The peak current and pulse duration of single pulse determine the size and depth of discharge crater, so they determine the machining surface roughness and size and shape accuracy.
放电单脉冲的电流峰值和脉宽决定了单个电火花蚀坑的大小和深度，从而直接决定了工件的加工表面粗糙度、形状精度和尺寸精度。
The effects of pulse width, pulse interval, peak current and process time on intensified layer are analyzed. And the micro-hardness and the property of strengthening layer are also analyzed.
分析了脉冲宽度、脉冲间隔、峰值电流、加工时间对强化层厚度的影响，并对强化层的显微硬度和耐磨性进行了分析。
Pulse drive and pulse current were studied in this paper aim at improving peak output power of the ultrasonic generator. At the same time these two types circuit for producing pulses were studied.
本文从提高超声电源峰值功率出发，分析研究了脉冲驱动及脉冲电流两种不同的脉冲形式，同时研究了这两类产生脉冲的电路。
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