特點:
1、滾刀用優(yōu)質(zhì)硬質(zhì)合金刀片焊接制成,采用徑向負(fù)30°前角,直槽,漸開線基本蝸焊,切削刃為平面曲線,結(jié)構(gòu)可靠,切削穩(wěn)定。
2、可滾切硬度為HRC45-64的各種淬硬齒輪。*用于高精度齒輪磨前的半精加工和低精度齒輪的精滾加工,A*可直接滾刀GB10095-88七、八級精度的淬硬齒輪。被加工齒輪的表面粗糙度達(dá)Ra0.63-1.25微米。一次刃磨后的滾切長度為50-100米。
FEATURES:
1、 The blades of hobs are made of excellent carbide alloy and welded on rake surfaces.Hobs are designed of 30° negative rake angle, straight flute,involute base worm and plane curve for cutting edge,They are reliable on structre and steady in process.
2、 Various hardened gears of HRC 45-64 can be hobbed.Class A hobs are suitable for semifinish of pregrinding high precision gears and finish hobbing of low accuracy gears.Class AA hobs can hob the hardened gears of class 7 and 8(GB 10095-88(.The surface roughness Ra 0.63-1.25um can be obtained for tooth suface of gear.The tool life for one sharpening is 50-100m.