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熨平切削由于综合了切削和挤压原理,在保证高生产率的前提下,可使零件表面质量大为提高。带有切削—熨平齿的熨平丝锥,是为提高切制螺纹的精度、光洁度和丝锥的耐用度而研制的。这种丝锥与普通丝锥(见附图 a)的区
Iron-cutting due to a combination of cutting and extrusion principle, to ensure high productivity under the premise of parts surface quality can be greatly improved. Ironed taps with cutting-ironing teeth were developed to improve thread accuracy, finish and tap durability. This type of tap and ordinary tap (see Figure a) area