进给方式对AISI 304L不锈钢螺纹车削的影响

为了得到AISI 304L不锈钢螺纹最优的车削进给方式，通过对比径向、侧面和增量三种不同的进给方式在加工过程中温度、刀具寿命、螺纹表面的显微硬度变化，研究了不同进给方式对AISI 304L不锈钢螺纹车削的影响。试验结果表明，在加工过程中，采用径向进给的车削方式产生的温度最高，随之依次是侧面进给和增量进给；进给方式直接影响刀具的使用寿命，而刀具寿命与刀尖磨损密切相关，刀尖磨损一定程度上会导致螺纹轮廓的偏差；使用增量进给的车削方式可降低温度、延长刀具寿命并减少螺纹表面硬化深度。

Effects of the Infeed Method on Thread Turning of AISI 304L Stainless Steel

In order to study the optimal infeed method on AISI 304L stainless steel thread turning, thread machining with three different infeed methods are carried out, radial, side and incremental. By comparing the test results of temperature, tool life and microhardness of thread surface in the machining process of three different infeed methods, the influence of the different infeed methods to the AISI 304L stainless steel thread turning is studied. The experimental results show that the processing mode that produces the highest temperature in the processing is radial feed, followed by side feed and incremental feed. Feed method plays an important role in determining tool life. Tool life is mainly limited by tool tip wear, which will lead to the deviation of thread profile. The use of incremental feed can reduce the temperature, prolong the tool life and reduce the depth of thread surface hardening.