This study compares the thermal performances of a permanent metal mold with a conventional [pass-through cooling channel design and one with a new additively manufactured cooling channel design by investigating them both numerically and experimentally. While the conventional cooling channel metal mold was manufactured by the traditional pass-through drilled channel method, the new cooling channel metal mold was made via additive manufacturing. After the molten metal (Al6061 aluminum alloy) was poured into the mold, the temperature distribution and solidification rates of the product (valve) obtained from the metal molds were analyzed comparatively with the data taken from the inner surface of the mold in 0.5 s time steps. On the basis of temperature values on the molten side of the metal molds, it was calculated that the heat transfer rate away from the molten metal achieved by the new cooling channel design was approximately 48% higher than the conventional cooling channel. In addition, it was observed that the conventional cooling channel needed 21% more time to transfer heat away compared to the new cooling channel design.

本研究通过数值和实验研究，比较了永久性金属模具与传统 [直通式冷却通道设计和新型增材制造冷却通道设计的热性能。传统的冷却通道金属模具是通过传统的穿通钻孔方法制造的，而新的冷却通道金属模具是通过增材制造制造的。将熔融金属（Al6061铝合金）注入模具后，与0.5s时间内从模具内表面获取的数据进行对比分析，分析金属模具得到的产品（阀门）的温度分布和凝固速率脚步。根据金属模具熔融侧的温度值，据计算，通过新的冷却通道设计实现的远离熔融金属的传热速率比传统冷却通道高约 48%。此外，据观察，与新的冷却通道设计相比，传统的冷却通道需要多 21% 的时间来传递热量。