In many cases of stainless steel cutting operations with carbide tools, a tool life strongly depends on flank notch wear of depth of cut rather than average flank wear of main cutting edge.
硬质合金刀具在不锈钢加工中，其刀具耐用度主要是取决于后刀面边界磨损而不是主切削刃后刀面的平均磨损量。
V-shaped notch blasting is that cutting slots with certain depth along axis -direction of the hole is determined according to the blast-crazing, and then load uncoupled charge and detonation.
形刻槽爆破是指在炮孔孔壁上按爆破开裂方向，切出一定深度的轴向对称V形槽，采用不耦合装药结构进行的一种断裂控制爆破。
The notch blasting mechanism is expounded by the fracture mechanics principle, the cutting tool parameters for notch presplitting blasting is put forward.
利用断裂力学原理阐明了切槽爆破机理，提出了切槽预裂爆破的刀具参数，依据现场初步试验成果指出了下一步应改进的切槽刀具参数。
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