The design of the cathode is based on the size and shape of the inter-leaf channel. Therefore, the data of the leaf back of the same blade must be converted into the data of the adjacent blade back in the same coordinate system, which is calculated by the following formula: The enveloping surface of the motion path plus the actual machining gap of each section is the processing profile. Since the shape of the whole leaf at each Z section is generally different, and the machining gap at each section of the changing electric field and flow field relationship generally changes, the designed cathode should consider the inner basin of each section. The mutual positional relationship of the leaf-back profile lines also takes into account the gap variation in different sections. Sometimes there is a certain amount of machining allowance, so the design of the cathode should be thoroughly examined in each section to design a shape size that meets all requirements. The leaf basin and the leaf back profile given by the discrete point coordinates are transformed into a combination of straight line segments with two boundary points parallel to the Yukou Y plane by mathematical processing. The design of the internal spray cathode base plate is based on According to the reserved machining allowance and the machining clearance reserved at each section, the possible size of the cathode of each section is calculated according to the reserved machining allowance in the Z section, and the size of the cathode base plate obtained on all Z sections is obtained. Take the minimum value (sometimes average) as the design size.
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