Tool Position Calculation of Five-Axis End Milling by High Feed Cutter

The fundamental of Five-axis End milling by High Feed Cutter was studied.It was found that the normal vector of cutting contact point did not pass through the blade's geometric center any more when High Feed Cutter was adopted for End milling,which was different from Torus end-mill.After the effective cutting radius was obtained,the mathematical model of High Feed Cutter was created.Based on this model,the tilt angle's formula was deduced,whose critical situation was also studied in detail;Finally,the precise formula for Tool Position Calculation was given.In addition,the error of Five-axis End milling by High Feed Cutter was explored too,and the relationship between feed length and linear approaching error was derived.