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有两种刀具角度的分析方法:一种是旧的,苏修的,所谓“静止角度”分析法;一种是新的,我们自己的,刀具切削角度的“1234”分析法。“1234”分析法,简单地说就是:好刀看刃,必须抓住刀刃这个要领,一切从刀刃出发,逐刃认识和分析刀具;每一条刀刃毗联两个刃面,有三个辅助基堆,四个基本的切削角度,即一刃二面三辅四角。它的核心内容是“一刃四角”,有的同志把“1234”分析法就叫做“一刃四角”分析法。
There are two methods of tool angle analysis: one is the old, the Soviet revision, the so-called “angle of repose” analysis; the other is the new, our own, tool cutting angle “1234” analysis. “1234” analysis, simply put it like this: a good knife to see blade, you must grasp the essentials of the blade, all starting from the blade, the blade by knife to understand and analyze; each blade adjacent two rake face, there are three auxiliary pile , Four basic cutting angle, that is, one side two side three auxiliary four corners. Its core content is “one side of the other.” Some comrades called the “1234” method of analysis the “one-man, four-corner” analysis.