Although cemented carbides have been increasingly investigated for additive manufacture, cemented carbides with low melting point metal binders have rarely been explored. In this study, a cemented carbide with AlSi10Mg alloy binder was fabricated by selective laser melting (SLM). The processing parameters were optimized through response surface methodology (RSM). The microstructure and mechanical properties of SLMed cast tungsten carbide (CC) - 40 wt% AlSi10Mg were studied. The SLMed carbide of CC - AlSi10Mg had much finer grain size of AlSi10Mg binder as compared with that of SLMed AlSi10Mg (1.9 μm vs. 7.3 μm). Noticeable metallurgical interaction between CC and AlSi10Mg binder was observed for SLMed carbide, which enhanced the bonding strength between CC and AlSi10Mg. SLMed carbide showed good Vickers hardness (236 ± 10 HV3), compression strength (639 ± 13 MPa), and abrasion wear resistance (0.47 ± 0.03 × 10⁻³ mm³N⁻¹ m⁻¹).

尽管已经越来越多地研究硬质合金用于增材制造，但很少探索具有低熔点金属粘合剂的硬质合金。在这项研究中，通过选择性激光熔化 (SLM) 制造了具有 AlSi10Mg 合金粘合剂的硬质合金。通过响应面法 (RSM) 优化处理参数。研究了 SLMed 铸造碳化钨 (CC) - 40 wt% AlSi10Mg 的显微组织和力学性能。与 SLMed AlSi10Mg 相比，CC - AlSi10Mg 的 SLMed 碳化物的 AlSi10Mg 粘结剂的晶粒尺寸要细得多（1.9 μm 对 7.3 μm）。对于 SLMed 碳化物，观察到 CC 和 AlSi10Mg 粘结剂之间存在显着的冶金相互作用，这提高了 CC 和 AlSi10Mg 之间的结合强度。SLMed 硬质合金表现出良好的维氏硬度 (236 ± 10 HV3)，^-3毫米³ N ^-1 米^-1 )。