Engineering Research Equipment: Electrical Discharge Grinding Machine

9500389 RaJurkar这个工程研究设备奖是为了购买一台电火花磨床(EDGM)，它将作为内布拉斯加州大学实验和分析计划的一部分进行改进，以建立一种创新的新机器--磨料电火花磨床(AEDGM)。他们将购买的商业机器--EDGM--和他们将开发的原型--AEDGM有一个细微的不同。他们将购买的商用机器只能通过旋转的石墨轮作为电极，通过火花侵蚀来去除材料。在砂轮上添加磨料后，机械机构也可以去除材料。这在加工金属基复合材料或陶瓷时很重要，因为电热机制只对导电材料起作用，导致这类先进材料的去除效率低和光洁度差。通过添加磨料机械机构，这组研究人员将拓宽材料类型、加工速度和生产产品的质量。这项工作将在内布拉斯加大学的非传统制造过程实验室进行，该实验室在这一研究领域拥有国际记录。该奖项将建立实验基础设施，以研究这种新工艺-磨料电火花加工-承诺在成形钛基合金、碳化钨和聚晶钻石等先进材料方面具有更高的生产率。***

9500389 Rajurkar This engineering research equipment award is to purchase an electrical discharge grinding machine (EDGM), that will be modified as part of the empirical and analytical program at the University of Nebraska to build an innovative new machine, the Abrasive Electrical Discharge Grinding Machine (AEDGM). There is a subtle difference in the commercial machine that they will purchase - the EDGM - and the prototype they will develop - the AEDGM. The commercial machine they will purchase removes material only by spark erosion with a rotating graphite wheel acting as an electrode. Adding abrasives to the wheel allows for mechanical mechanisms to remove material as well. This is important when processing metal matrix composites or ceramics, because the electrical-thermal mechanism only works on conductive materials, leading to low removal efficiency and poor finish for this class of advanced materials. By adding the abrasive mechanical mechanism, this team of researchers will broaden the types of materials, the rates for processing, and the quality of products produced. The work will be done at the University of Nebraska's Nontraditional Manufacturing Processes Laboratory, a facility that has an international track record in this field of research. This award will build the experimental infrastructure to investigate this new process - abrasive electro discharge machining - which promises higher productivity in shaping advanced materials like titanium based alloys, tungsten carbide, and polycrystalline diamond. ***