Metal bond diamond abrasive tools with complex structure and high wear efficiency will be widely used in the geological drilling and mechanical processing industries, but are difficult to manufacture by traditional technology. In this paper, selective laser melting (SLM), as one of the additive manufacturing technologies, was used to fabricate Cu-Sn-Ti bonded diamond abrasive composites. Simulations, experiments and characterization were carried out to obtain the appropriate SLM process parameters. Results indicated that the optimal SLM parameters were laser power of 260 W, scanning speed of 300 mm/s and layer thickness of 0.09 mm. Furthermore, the wear resistant performance of SLM sample was compared with hot-pressed sintered sample in terms of mass loss rate, wear morphology and bonding condition. Results showed that diamond particles were seriously pulled-out from hot-pressed sintered sample while this hardly occurred from the wear surface of SLM sample, which was benefited from higher amounts of TiC around the diamond. Consequently, the bonding force to diamond was effectively improved for SLM sample. Therefore, SLM method cannot only fabricated sample with complex structures, but also with better performance. This study provides a novel approach for forming metal bonded diamond tools by SLM in the future.

结构复杂，磨损效率高的金属结合剂金刚石磨具将广泛用于地质钻探和机械加工行业，但传统技术难以制造。在本文中，选择性激光熔化（SLM）作为增材制造技术之一，被用于制造Cu-Sn-Ti键合金刚石磨料复合材料。进行了仿真，实验和表征，以获得适当的SLM工艺参数。结果表明，最佳的SLM参数是260 W的激光功率，300 mm / s的扫描速度和0.09 mm的层厚度。此外，在质量损失率，磨损形态和结合条件方面，将SLM样品与热压烧结样品的耐磨性能进行了比较。结果表明，金刚石颗粒从热压烧结样品中被严重拉出，而这几乎不会从SLM样品的磨损表面上出现，这得益于金刚石周围TiC含量的增加。因此，对于SLM样品，与金刚石的结合力得到了有效改善。因此，SLM方法不仅可以制造结构复杂的样品，而且具有更好的性能。这项研究为将来通过SLM形成金属结合的金刚石工具提供了一种新颖的方法。而且具有更好的性能。这项研究为将来通过SLM形成金属结合的金刚石工具提供了一种新颖的方法。而且具有更好的性能。这项研究为将来通过SLM形成金属结合的金刚石工具提供了一种新颖的方法。