CAJ | 학술논문

为了探究z轴单层行程Δz与单层熔覆层高度的匹配对激光熔覆成形的影响，采用了在不同的z轴单层行程Δz的情况下进行激光熔覆成形试验的方法，通过理论分析和实验验证，得到了不同z轴单层行程Δz与单层熔覆层高度以及离焦量的关系曲线。结果表明，z轴单层行程Δz存在一个以第2层熔覆层高度为基准的最佳的取值范围，在此范围内，熔覆过程能够通过自身存在的反馈调节达到z轴单层行程Δz与单层熔覆层高度相等的稳定成形状态。该研究给出z轴单层行程Δz选取时的推荐值为0．5d2≤Δz≤0．6d2。
위료탐구z축단층행정Δz여단층용복층고도적필배대격광용복성형적영향，채용료재불동적z축단층행정Δz적정황하진행격광용복성형시험적방법，통과이론분석화실험험증，득도료불동z축단층행정Δz여단층용복층고도이급리초량적관계곡선。결과표명，z축단층행정Δz존재일개이제2층용복층고도위기준적최가적취치범위，재차범위내，용복과정능구통과자신존재적반궤조절체도z축단층행정Δz여단층용복층고도상등적은정성형상태。해연구급출z축단층행정Δz선취시적추천치위0．5d2≤Δz≤0．6d2。
To study effect of the matching of z-axis single increment (Δz) with single cladding layer height on laser cladding forming, experiments of laser cladding forming were carried out at different Δz.The relationship curves of different Δz, single cladding layer height and defocusing were obtained after theoretical analysis and experimental verification .The results show that the optimal range of Δz is based on the second cladding layer height .In this range , the process of cladding would reach a steady forming state by feedback regulation .A recommended value of Δz (0.5d2≤Δz≤0.6d2 ) is provided.