随着宇航、电子和医疗器械工业中微小孔加工量的日益增加,现在已发展了大约50种加工微小孔的方法。表1所示为孔的尺寸范围及其不同的名称。表2列出了一般加工方法。表3列举了各种加工方法的适用范围,亦即所能加工的最小孔径、直径和深度比、加工精度、生产率和被加工材料的种类。该表中还包括表列各种方法 With the increasing processing of tiny holes in the aerospace, electronics and medical device industries, about 50 methods for processing microholes have now been developed. Table 1 shows the pore size range and its different names. Table 2 lists the general processing methods. Table 3 lists the scope of application of various processing methods, that is, the smallest hole that can be processed, diameter and depth ratio, machining accuracy, productivity and the type of material to be processed. The table also includes a list of various ways