66 Каталог GESAC 2015 Станочный металлорежущий инструмент с СРП и монолитный Стр.060

Каталог GESAC 2015 Инструмент металлорежущий Стр. 060 0066 Lab2u

车削刀具 Turning Tools PCBINI刀具常用刃 形式 Commonly Used Cutting Edge Conditions of PCBN Tools s 倒棱+钝化刃形 The Negative Land and Honing Cutting Edge Condition 切削刃强度和综合性能最好，CBN刀具应用最广泛的刃 ，车削合金硬铸铁多用 S10020,灰铸铁多用S02020，淬火钢多用S01020。 Both the strength and the comprehensive performance of this cutting edge are the best, and this edge is most widely used for CBN cutting tools.The cutting edge S10020 is used to turn hard alloy cast iron, and turning gray cast iron is S02020, turning hardened steel is S01020. 倒棱刃形 The Negative Land Cutting Edge Condition 倒棱有利于提高切削刃的抗冲击性能。与S刃 相比，有利于提高加工表面质量，有利 于保证尺寸稳定性。 The negative land helps to improve the impact resistance of the cutting edges. Compared with S type cutting edge, the quality of the machined surface could be improved and the dimensional stability could be ensured. E 钝化刃形 Honing by Er Cutting Edge Condition 钝化可减少微崩刃，有助于提高切削刃完整性。钝化越重，切削刃型越完好，强度越 好，但切削抗力和切削热也会随之提高。系统刚性和机床功率足够或断续切削时可选用 重钝化。 Honing can help to reduce micro-chipping and to protect the cutting edges.both the heavier honing and the more perfect cutting edges,the better strength will be improved, however, the cutting force and the cutting temperature will be also improved.Finally， the heavy honing would be selected under the condition that both the system rigidity and the machine power are enough, even if interrupted cutting. 锋利刃形 Sharp Cutting Edge Condition 锋利刃 有助于提高加工表面质置，不易产生振纹。因为过于锋利造成耐用度稍差，因 此只是在加工一般铸铁并要求较髙表面精度时选用。多用于精车灰铸铁刹车盘。 It is difficult to generate the chatter marks and easy to reduce the roughness of the machined surface if the sharp cutting edge would be used.But on the other hand the tool life would be reduced if the edges are over-sharped .consequently, this kind of edge is only adopted under the condition of cutting common cast iron and high precision surface requirement, such as finish turning gray cast iron brake discs. S 0 10 2 0 倒棱角度a =20° Chamfer Angle a =20° 倒棱宽度W=0.1mm Chamfer width W=0.1 mm 刃 形式 Cutting Edge Condition it