エンドミル切削に関する実験報告（策1報）

　エンドミルの底付側面切削において、切り込み量の積が同じである切削幅15mm・軸方向切込10mmと 切削幅30mm・軸方向切込5mmの2種類の切削を行い、ワークにかかる切削抵抗を測定した。結果、同じ仕 事量であっても切削幅30mm・軸方向切込5mmの方が、1回転中の切削時間の割合が長くなるので切削動力 の最大値及び変動が小さいことがわかった。

　キーワード：エンドミル、切削抵抗

　　To research the better machining condition of an end-mill, cutting resistance, are measured in two cases where cutting speed and feed rate were same respectively.
　　The first case was that the axial depth of cut was 10mm and the radial width of cut was 15mm.
　　The second case was that the depth of cut was 5mm and the width of cut was 30mm.
　　It was shown that the cutting vibrations of second case were smaller than that of first case.

　Keywords: end-mill, cutting resistance