CAJ | 학술논문

为了进一步提高聚晶金刚石复合片( PDC)超硬刀具焊接性能,运用基于热—结构耦合的有限元分析方法,对PDC刀具高频钎焊过程中的残余热应力进行了非线性瞬态热传导模拟计算. 分析了复合片层厚度、钎缝厚度和接头型式主要结构参数对焊缝内部及其接合界面的残余热应力大小和分布的影响程度及其规律,对于优化PDC刀具钎焊工艺参数以及提高超硬刀具焊接质量具有理论指导意义.
위료진일보제고취정금강석복합편( PDC)초경도구한접성능,운용기우열—결구우합적유한원분석방법,대PDC도구고빈천한과정중적잔여열응력진행료비선성순태열전도모의계산. 분석료복합편층후도、천봉후도화접두형식주요결구삼수대한봉내부급기접합계면적잔여열응력대소화분포적영향정도급기규률,대우우화PDC도구천한공예삼수이급제고초경도구한접질량구유이론지도의의.
To further improve the polycrystalline diamond ( PDC) welding properties of super hard cutting tools, by using the finite element analysis method based on thermal structure coupling, the nonlinear transient heat conduction of the residual thermal stress of PDC tool in high frequency brazing process is simulated and calculated. The main structural pa-rameters of compound layer thickness, seam thickness and the joint type the influence degree of force size and distribution of thermal residual weld internal and interface are analyzed,which has important significance in optimizing the parameters of tool brazing process of PDC and improving the welding quality of super hard cutting tool in theory.