ノジュラー鋳鉄の被削性 : 第2報, 逃げ面凝着現象と切削条件との関係

抄録

To determine the effects of cutting conditions on flank adhesion, nodular cast iron grade 60-45-10 was machined dry and wet with carbide cutting tools, cast iron cutting grade and steel cutting grade. Decreasing the feed rate raised the critical cutting speed at which flank build-up occurred and lowered the resultant tool force. For tools with positive rake angle, the critical cutting speed was generally higher and tool forces were lower than for tools with negative rake angle. Large clearance angle eliminated flank adhesion. The use of cutting fluids prevented flank adhesion, and tool force patterns were smooth and smaller than those for dry cutting. Flank build-up was ana1yzed chemically and metallurgically. Methods to prevent flank adhesion were recommended.