CAJ | 학술논문

针对高温合金高效磨削用砂轮气孔率不高、砂轮耐磨性差等问题，基于空心球造孔与高温钎焊技术，提出多孔复合结合剂立方氮化硼（Cubic Boron Nitride，简称CBN）砂轮制备方法。从砂轮结构设计、砂轮节块制备工艺、砂轮粘接与修整等方面加以阐述，最后对该砂轮高效磨削高温合金磨削性能进行评价。在磨削速度为80m/s、磨削深度为0．2 mm的工艺条件下，多孔CBN砂轮最大材料去除率可达50 mm3/mm·s，这表明该新型多孔CBN砂轮在镍基高温合金高效深切磨削中具有应用潜力。
침대고온합금고효마삭용사륜기공솔불고、사륜내마성차등문제，기우공심구조공여고온천한기술，제출다공복합결합제립방담화붕（Cubic Boron Nitride，간칭CBN）사륜제비방법。종사륜결구설계、사륜절괴제비공예、사륜점접여수정등방면가이천술，최후대해사륜고효마삭고온합금마삭성능진행평개。재마삭속도위80m/s、마삭심도위0．2 mm적공예조건하，다공CBN사륜최대재료거제솔가체50 mm3/mm·s，저표명해신형다공CBN사륜재얼기고온합금고효심절마삭중구유응용잠력。
The development of porous composite -bonded CBN wheel was developed based on the pore -forming effect of alumina bubbles and the brazing technology.Wheel substrate structure with symmetrical detachable segments was designed and examined.The manufacture process and mechanism of wheel working segments was explained in detail.After the porous CBN wheel was bonded and dressed,the high-efficiency grinding performance was explored.The maximum material removal rate of this wheel reaches 50 mm3/mm·s under grinding speed of 80 m/s and depth of cut of 0.2 mm. This implies their great potential application in high-efficiency deep grinding of nickel-based superallys.