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在机械加工中,非金属零件也是经常遇到的,图1所示的工件就是我们为援外生产的一种非金属零件。该件材料为有机玻璃,不但厚度薄、直径大,而且弹性更大,况且还要在中间制以 e 为3mm 的偏心孔。因为没有这方面的加工经验。所以我们首先采用了传统的钻床加工以及车床四爪卡盘等加工方法,其结果不是孔的周围出现裂纹,就是整个工件碎裂,这可能是材料的组织结构所致,它的特性是又粘又脆,弹性大,强度差,如果能够采用热加工的方法,问题就有可能解决。经试用,效果很好,现介绍如下:
Non-metallic parts are also frequently encountered in machining, and the part shown in Figure 1 is a non-metallic part we manufacture for foreign assistance. The material for the plexiglass, not only thin, large diameter, but also greater flexibility, but also in the middle of the system to the eccentric hole e 3mm. Because there is no processing experience in this area. Therefore, we first use the traditional drilling and lathe four-jaw chuck and other processing methods, the result is not cracks around the hole, or the entire workpiece fragmentation, which may be caused by the organizational structure of the material, its characteristics are sticky And crisp, flexible, poor strength, if you can use thermal processing methods, the problem may be solved. After trial, the effect is very good, are introduced as follows: