增减材混合制造技术的研究现状与进展

Research status and progress of hybrid additive manufacturing technology

增材制造生产出的复杂零件的尺寸和几何精度以及表面质量由于无法满足直接应用要求,均需二次加工,制约着金属增材制造技术在航天工业等领域进一步发展,而增减材混合制造是突破该技术瓶颈公认的最有效解决方案。首先阐述了增减材混合制造技术原理,从设备集成和工艺研究两方面综述了国内外增减材的研究现状,介绍了增减材混合制造的工艺参数和缺陷检测,指出了增减材混合制造关键技术难点并指出方展方向。

The dimensional and geometric accuracy and surface quality of complex parts produced by additive manufacturing require secondary processing because they do not meet the requirements for direct application,which restricts the further development of metal additive manufacturing technology in the aerospace industry and other fields,and additive-reduction hybrid manufacturing is the most effective solution to break through the technical bottleneck.Firstly,the principle of hybrid additive and subtractive manufacturing technology is explained,the research status of domestic and foreign additive and subtractive materials is reviewed in terms of equipment integration and process research,the process parameters and defect detection of hybrid additive and subtractive manufacturing are introduced,the key technical difficulties of hybrid additive and subtractive manufacturing are pointed out and the direction of development is indicated.