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本文提出一种新型结构的车刀,用来加工大部分不锈钢和热强钢,该结构的车刀不需冷却,这种刀具的使用寿命是一般刀具的1.15～1.4倍。刀具如图1所示,散热部分是由圆柱形散热轮2组成的,轮外表面有许多毛细孔1,可用冷却液将这些毛细孔充满,将带有销轴4的轮2装夹在具有沟槽的刀体5上。为确保供热轮所调的位置,把轮牢牢固定在可用扳手调偏心的衬套3上。在加工过程中,散热轮沿着已加工完的工件表面滚动接触,散热轮上多毛细孔里的冷却液受热而蒸发,在这种情况下,强烈吸收了被加工工件和刀具所产生的热。散热轮2毛细孔中的液体完全蒸发后,再用冷却液将其充满.在这种新结构的刀具上,散热轮可用具有高热传导性能的材料制造(散热轮试件可用铜)。
In this paper, a new type of turning tool is proposed to process most of the stainless steel and hot-rolled steel. The turning tool of this structure does not need to be cooled. The service life of this tool is 1.15 ~ 1.4 times of that of a normal one. Cutter As shown in Figure 1, the heat sink is made up of a cylindrical heat sink 2 having a plurality of capillaries 1 on the outer surface, which can be filled with a coolant and the wheel 2 with pin 4 mounted on Groove cutter body 5 on. To ensure that the heating wheel is adjusted in position, the wheel is securely fastened to the bushing eccentric 3 with a wrench. During the processing, the cooling wheel rolls along the surface of the finished workpiece. The coolant in the multiple pores of the cooling wheel is heated and evaporates. In this case, the heat generated by the workpiece and the tool is strongly absorbed . In the new structure of the tool, the heat sink can be made of a material with high thermal conductivity (the heat sink wheel can be made of copper) after the liquid in the capillary hole of the heat sink 2 is completely evaporated and then filled with the coolant.