Conformal cooling coils have been developed during the last decades through the use of additive manufacturing (AM) technologies. The main goal of this study was to analyze how the presence of an internal channel that could act as a conformal cooling coil could affect compressive strength and quasi-elastic gradient of AlSi10Mg lattice structures produced by laser powder bed fusion (LPBF). Three different configurations of samples were tested in compression at 25 °C and 200 °C. The reference structures were body centered cubic (BBC) in the core of the samples with vertical struts along Z (BCCZ) lattices in the outer perimeter, labelled as NC samples. The main novelty consisted in inserting a straight elliptical channel and a 45° elliptical channel inside the BCCZ lattice structures, labelled as SC and 45C samples respectively. All the samples were then tested in as-built (AB) condition, and after two post process heat treatments, commonly used for AlSi10Mg LPBF industrial components, a stress relieving (SR) and a T6 treatment. NC lattice structures AB exhibited an overall fragile fracture and therefore the SC and 45C configuration samples were tested only after thermal treatments. The test at 25 °C showed that all types of samples were characterized by negligible variations in their quasi-elastic gradients and yield strength. On the contrary, the general trend of stress-strain curves was influenced by the presence of the channel and its position. The test at 200 °C showed that NC, SC and 45C samples after SR and T6 treatments exhibited a metal-foam like deformation.

在过去的几十年中，通过使用增材制造（AM）技术开发出了保形的冷却盘管。这项研究的主要目的是分析可以用作保形冷却盘管的内部通道如何影响由激光粉末床熔合（LPBF）产生的AlSi10Mg晶格结构的抗压强度和准弹性梯度。在25°C和200°C的压缩条件下测试了三种不同配置的样品。参考结构是样品中心的体心立方（BBC），沿Z方向有垂直撑杆（BCCZ）外围的晶格，标记为NC样本。主要的新颖之处在于在BCCZ晶格结构内部插入了一条直线椭圆形通道和一个45°椭圆形通道，分别标记为SC和45C样本。然后，所有样品均在建成（AB）条件下进行测试，并经过两次通常用于AlSi10Mg LPBF工业组件的后处理热处理，应力消除（SR）和T6处理。NC晶格结构AB表现出整体脆性断裂，因此仅在热处理后才测试SC和45C构型样品。在25°C下进行的测试表明，所有类型的样品的准弹性梯度和屈服强度变化均可忽略不计。相反，应力-应变曲线的总体趋势受通道的存在及其位置的影响。在200°C下进行的测试表明，经过SR和T6处理后的NC，SC和45C样品表现出类似金属泡沫的变形。