CAJ | 학술논문

采用超高频感应连续钎焊工艺，在不同扫描速度条件下实现了立方氮化硼(CBN)磨粒、Ag-Tu-Ti合金以及基体三者之间的钎焊连接。采用扫描电子显微镜(SEM)和X射线能谱仪(EDX)观察钎焊后的CBN磨粒界面新生化合物形貌。结果表明：随着扫描速度的变化，在CBN磨粒表面生成颗粒状TiN化合物以及针状和六棱柱状的TiB 2化合物。其中，TiN尺寸为100 nm左右，而TiB 2尺寸小于200 nm。在超高频感应连续钎焊CBN磨粒表面首先生成颗粒状TiN层，然后在TiN层外围形成柱状TiB 2层，最终形成CBN/TiN/TiB 2/钎料结构。当扫描速度为0.5 mm/s时，可以获得较好的界面新生化合物层结构。
채용초고빈감응련속천한공예，재불동소묘속도조건하실현료립방담화붕(CBN)마립、Ag-Tu-Ti합금이급기체삼자지간적천한련접。채용소묘전자현미경(SEM)화X사선능보의(EDX)관찰천한후적CBN마립계면신생화합물형모。결과표명：수착소묘속도적변화，재CBN마립표면생성과립상TiN화합물이급침상화륙릉주상적TiB 2화합물。기중，TiN척촌위100 nm좌우，이TiB 2척촌소우200 nm。재초고빈감응련속천한CBN마립표면수선생성과립상TiN층，연후재TiN층외위형성주상TiB 2층，최종형성CBN/TiN/TiB 2/천료결구。당소묘속도위0.5 mm/s시，가이획득교호적계면신생화합물층결구。
Continuous brazing with ultra-high frequency induction was proposed to braze the cubic born nitride (CBN) grits and steel substrate based on Ag-Cu-Ti filler alloy. The new compounds morphologies were observed and analogized by scanning electron microscopy (SEM) and energy diffraction X-ray (EDX). The results show that, with the variation of scanning speed, granular compounds TiN about 100 nm in size, the needle-like and prismatic compounds TiB 2 less than 200 nm in size are observed, respectively. The theoretical analysis results reveal that, during continuous brazing by ultra-high frequency induction, granular TiN layer forms on the surface of CBN firstly, and then, prismatic TiB 2 layer forms on the outside of the new TiN layer. The joint is CBN/TiN/TiB 2/filler structure, finally. A satisfactory interfacial structure can be obtained when scanning speed is 0.5 mm/s.