电火花加工工人技术等级标准初级工应知一、电火花机床的名称型号、规格、结构、主要组成部分及作用,工作液系统,操作和维护保养方法二、常用工夹量具和附件的名称、规格、用途和维护方法三、常用工件金属材料的种类、牌号和性能用途四、常用电极材料的种类、名称、性能和用途五、常用润滑剂、液压油的 EDM workers should be aware of the technical level of junior level workers First, the name EDM machine model, specifications, structure, the main components and role of the working fluid system, operation and maintenance methods Second, the commonly used measuring tools and accessories name, Specifications, uses and maintenance methods Third, the common types of metal workpiece materials, grades and performance purposes Fourth, commonly used electrode material types, names, properties and uses Five commonly used lubricants, hydraulic oil