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切書刀片是由刀头和刀体两部分焊接而成的。一般刀头是用工具钢做成(X1钨合金工具钢或10碳工具钢),刀体是用結构钢做成(2、3扁鋼)。切書刀片的焊接刀头和刀体在焊接前加工的形状,以及焊接完后使用时的形状如图1所示。焊接前刀头和刀体的焊接面必須干净,不应有油污、銹迹和灰尘。焊接面的光洁度不必过高,一般▽3就可以了。刀头的焊接面可用普通砂輪机打光一下,刀
Cut the blade is made by the cutter head and the two parts of the body welded together. General cutter head is made of tool steel (X1 tungsten alloy tool steel or 10 carbon tool steel), knife body is made of structural steel (2,3 flat steel). The shape of the cutter head and body of the cutting blade before machining and the shape of the cutter body after welding are shown in FIG. 1. Welding head and knife body before welding must be clean, there should be no oil, rust and dust. Weld surface finish does not have to be too high, generally ▽ 3 on it. Segment of the welding head can be used ordinary light polishing machine, knife