Cemented carbide parts have been manufactured from WC-12Co granules by “Solvent on Granules 3D-Printing” and compared with reference parts produced by conventional press and sintering. SG-3DP consists in growing a green part layer-by-layer by selective solvent jetting on powder-polymer granule beds. Both 3D printed green parts and uniaxially pressed compacts have been consolidated by thermal debinding and liquid phase sintering. Further densification has been achieved by hot isostatic pressing.

3D-printed parts subjected to hot isostatic pressing exhibit 99.9% of theoretical density, 1308 ± 10 HV30 hardness and 12.1 ± 0.3 MPa∙m½ indentation toughness, which are comparable to properties of a commercial fine grained WC-12Co. Percussion drilling tests with fully dense SG-3DP drill plates have also been carried out successfully on concrete.

硬质合金零件是通过“ Solvent on Granules 3D-Printing”由WC-12Co颗粒制成的，与通过常规压制和烧结生产的参考零件相比。SG-3DP包括通过在粉末聚合物颗粒床上选择性喷射溶剂，逐层生长绿色部分。3D打印的生坯和单轴压制坯件都已通过热脱脂和液相烧结进行了固结。通过热等静压已经实现了进一步的致密化。

经受热等静压的3D打印零件具有99.9％的理论密度，1308±10 HV30硬度和12.1±0.3 MPa∙m1 / 2压痕韧性，与商用细粒WC-12Co的性能相当。还已经在混凝土上成功地进行了全密实SG-3DP钻板的冲击钻探测试。