CHAPTER B - Horn USA, Inc.

GROOVE MILLING by circular interpolationMILLING OF AN INTERNAL GROOVEHCos [180° - φ°] = r2 + [R + a r- r] 2 - R 2 180° - φ° φ°2r [R + a r- r]L = • 2r • φ° mm360°Length of cutt =A Tn • z • A zminTime for cut (for A T)A Z= L • h mmm 2 s' 2= s' 1Area of chips' 1= • 2 (R+r-a r ) mm/mintFeed rate of tool centreA T= [R 2 -(R-a r) 2 ] mm 2Area of groove sectionR - a rR + r - a rmm/minFeed rate of tool tipSpecificationISO Specification Specification ISO SpecificationFeed rateRevolutionsNumber of teethFeed/toothmedium thickness ofchipradial depth of cutr rs'v fRadius of cuttera ra ennRadius of workpieceRRzs zzf zFeed rate of tool centres‘ 1v f 3h mh mFeed rate of tool tips‘ 2v f2H6In the UNITED STATES call us toll free1 - 888 - 818 HORN