控制部分就是上位机系统和伺服系统：（1）上位机：是基于PC架构的慢走丝机床专用ＮＣ控制器；（2）伺服系统：两套台达ASD-AB10212MA伺服控制器和台达ECMA-G31309ES大惯量伺服电机。（3）机械传动：伺服电机直连螺距为６mm的丝杆。3.2 技术难点慢走丝机床上的伺服应用的主要技术难点就是在0.5~0.2rpm速运行过程中保持稳的追随误差，同时追随误差又必须小于２个脉冲。这样的速技术要求实际上是和慢走丝机床的加工特点有密切的联系的。

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INDRAMAT DSC3.1-050-115V  DSC31050115V
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IMPERIAL 08124800  08124800
HYDRAULIC VALVE DIVISION BD90  BD90
HONEYWELL 51304511100  51304511100
HOFFMAN ENCLOSURES PTRS362424XA  PTRS362424XA
HOERBIGER ORIGA P55001004000-00755  P550010040000075
GOULDS PUMP 3196-6X8-13  31966X813
GIDDINGS & LEWIS 502-03927-03  5020392703
GIDDINGS & LEWIS 401-34401-00  4013440100
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GENERAL ELECTRIC DS3800HAFA-1D1E  DS3800HAFA1D1E
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慢走丝机床的电极丝直径通常0.03~0.35mm，而其加工工件时中心线在工件上切过的面积总和大可达约为350m㎡／min，慢走丝机床加工的工件与快走丝不同通常都是既对加工精度要求很高又有很大的加工厚度。这就对慢走丝机床的进给速度有很高的要求，速度必须在一定的范围内，过快的速度会造成加工不彻底，在工件表面留下深浅不一的粗糙痕迹使表面粗糙度变差，同时也会造成电极丝振动加大，易造成断丝！至于伺服系统小于２个脉冲的追随误差，则是因为线切割的加工原理就是正负电极之间不断放电灼烧工件表面，就是说两个电极之间要保持一定的距离，既不能接触在一起造成短路，又不能距离太远造成断路！
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