超高速切削时的T－v关系与切削力

T-v Relahonship and Cutting Force in High Speed Cutting Processes

研究了用ＮＴ５硬质合金端铣刀以３００～７８５ｍ／ｍｉｎ的速度铣削ＥＸ３０钢时刀具耐用度Ｔ和切削速度ｖ，主切削力Ｆ２与切削速度ｖ、进给速度ｖｆ、吃刀量ａｐ之间的关系，给出了刀具磨损曲线、Ｔ－ｖ关系曲线、Ｔ－ｖ关系式以及Ｆ２－ｖ，Ｆ２－ｖｆ，Ｆ２－αｐ关系曲线及关系式，并对这些关系和规律进行了机理的分析与讨论．

Relationships between the cutting tool life T,are analyzed when tangential force Fz and the cutting speed v machining steel EX30 using carbide end mill NT5 at high cutting speeds of 300 to 785 meters per minute. The tool-wear curves and relative T-v curves are shown. Further, the relationships and corresponding curves between Fz and v, feed speed vf and cutting depth ap respectively are also given. These relations and regularities are analysed and discussed concerning the underlying cutting mechanism.