Balance adjustment method of end mill
AssigneeHitachi, Ltd.
InventorsTakeji Shiokawa, Kuninori Imai, Chikakazu Ninomiya, Hideaki Sasaki
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Abstract
A balance adjustment method of an end mill for increasing the accuracy of the machined surface and also for lengthening the tool lifetime, in which mass unbalance between an end gash part of a primary cutting edge and an end gash part of a secondary cutting edge of the end mill having asymmetric cutting parts is balanced by decreasing an end gash angle, an end gash part, a clearance angle or a corner of tooth face of the secondary cutting edge.
Claims14
A balance adjustment method of an end mill including a plurality of end cutting edges one of which is shaped to extend over the center axis of revolution, and end gash parts for forming tooth faces on the respective end cutting edges, wherein the mass balance of the end mill is adjusted to be uniform by lightening of an end gash part of an end cutting edge opposite to said end cutting edge which is shaped to extend over the center axis of revolution.
A balance adjustment method of an end mill including a plurality of end cutting edges one of which is shaped to extend over the center axis of revolution, and end gash parts for forming tooth faces on the respective end cutting edges, wherein the mass balance of the end mill is adjusted to be uniform by lightening of a corner part of tooth face of an end cutting edge opposite to said end cutting edge which is shaped to extend over the center axis of revolution.
A balance adjustment method of an end mill including a plurality of end cutting edges one of which is shaped to extend over the center axis of revolution, and end gash parts for forming tooth faces on the respective end cutting edges, wherein the mass balance of the end mill is adjusted to be uniform by lightening of a clearance angle part of an end cutting edge opposite to said end cutting edge which is shaped to extend over the center axis of revolutions.
Dependencies are inferred from the claim text.