Basic Studies of High-Pressure Abrasive Suspension Jets for Machining Applications

第二阶段的工作将涉及与磨料悬浮射流(ABJ)工艺相关的三个基本主题。首先，对悬浮液的制备以及流变性对射流凝聚性和切割性能的影响进行了研究。悬浮液的流变特性将被建模，并与喷嘴的结构和由此产生的加工性能相关联。第二个主题与喷嘴优化和射流建模有关，还将涉及探索替代喷嘴概念和新材料。将对悬架加速过程和喷气式飞机的结构进行建模。第三个研究领域将解决切割和钻孔的喷射-材料相互作用过程。以前开发的磨料水射流(AWJ)模型将用于指导ASJ切割预测模型的开发。在这个项目中将使用喷射和喷射材料界面可视化技术。这项工作的结果将用于泵开发的并行工程工作，以实现商业化。根据该计划开发的技术将在几个商业领域产生重大的直接和间接影响。ASJ的高速流动将为机械加工行业引入一种新的切割梁。ASJ梁的效率很高，能够加工任何材料。切割、钻孔、车削、铣削、抛光、去毛刺和其他加工操作可以使用相同的工具执行。

The Phase II effort will address three basic topics related to the abrasive suspension jet (ABJ) process. First, a study will be conducted on suspension preparation and the effect of rheological characteristics on jet coherency and cutting performance. The rheological characteristics of the suspension will be modeled and correlated with the jet's structure and the resultant machining performance. The second topic is related to nozzle optimization and jet flow modeling and will also involve exploring alternative nozzle concepts and new materials. The suspension acceleration process and the jet's structure will be modeled. The third area of study will address the jet-material interaction process for cutting and drilling. Previously developed abrasive water jet (AWJ) models will be used to guide the development of an ASJ cutting prediction model. Jet and jet- material interface visualization techniques will be used in this program. The results of this work will be used in parallel engineering efforts on pump development for commercialization. The technology developed under this program will have significant direct and indirect effects in several commercial fields. The high-velocity flow of ASJs will introduce a new cutting beam to the machining industry. The ASJ beam is highly efficient and capable of machining any material. Cutting, drilling, turning, milling, polishing, deburring, and other machining operations could be performed with the same tool.