工具电火花强化，是提高刀具使用寿命与切削性能的最有效的方法之一，因之，它的普遍推广，就意味着刀具的大量节省与生产效率的提高。远一经验，我局会组织部分工厂推广采用；但迄今尚有某些工厂由於重视不足；或将电火花强化机停置不用，或尚未充份发挥效率，棕些现象是必须纠正的。为此；特将上海机床厂使用电火花强化的经验，介绍出来，希各厂重视并组织推广。──技术处 Tool EDM is one of the most effective ways to improve the service life and cutting performance of the tool. Therefore, its general promotion means a lot of tool saving and productivity improvement. However, some factories have so far failed to take due care or have their EDMs not used or have not yet fully utilized their efficiency, some of which have to be rectified. To this end; special Shanghai Machine Tool Works to enhance the use of EDM experience, introduced, Xi plant emphasis and organization of promotion. ─ ─ Technology Office