Low damage cutting and bonding process of high performance composite materials and its systematizing

高性能复合材料低损伤切割粘合工艺及其系统化

• 批准号: 03402047
• 负责人: MATSUYAMA Kinichi
• 金额: $ 21.38万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (A)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03402047/
• 关键词: Composite materials; Waterjet cutting; Solid phase bonding; Surface deposition with evaporation; Thermal deterioration; 複合材料構造体; ウォ-タジェット加工; 材質の熱変質回避

Low damage cutting and bonding process of ceramics/metal composite material has been investigated to establish the high reliability material processing of high performance materials. A abrasive waterjet cutting method with ultra high pressure water was employed for cutting procedure. And a solid phase bonding for relatively low temperature joining procedure of the composite materials to realize low heat-affected weld joint.As a result, it was clarified that a cantilever method with a data treatment procedure of computer tomography type has a high adaptability to measure the high pressure distribution pattern of the waterjet for cutting process. Then, the waterjet strictures were examined with snap photos an addition to the measured momentum distribution of waterjet, so that the relationship between the jet structure and the cut surface quality was made cleared. So, it was concluded that the use of ultra long throat length type of abrasive nozzle is useful to realize high performance cut surface without heat-affected part.In the solid state bonding, a high performance bonding procedure of Al_2O_3 ceramics to Ti was examined with a metal-deposited ceramics for substrate. In the present study, evaporation method was employed for the deposition. The joint strength was evaluated with the Auger analysis. Then, it was clarified that the joint part becomes sound, if the deposition was done. Moreover, the fitting process of both surfaces was examined, so that effect of surface roughness was indicated to be important for the fitting.At last, it was designed the low damage cutting and joining process by using both consideration results.

研究了陶瓷/金属复合材料的低损伤切割和粘接工艺，建立了高性能材料的高可靠性材料加工方法。采用超高压水的磨料水射流切割方法进行切割。并对复合材料进行了相对低温的固相连接工艺，实现了低热影响焊缝连接。结果表明，采用计算机断层扫描式数据处理程序的悬臂法测量切割过程中水射流高压分布模式具有较高的适应性。然后，在测量水射流动量分布的基础上，利用快照对水射流的结构进行了检测，明确了水射流结构与切割表面质量之间的关系。因此，采用超长喉道型磨料喷嘴可以实现无热影响部件的高性能切削表面。在固态键合中，以金属沉积陶瓷为衬底，研究了Al_2O_3陶瓷与Ti的高性能键合工艺。本研究采用蒸发法进行沉积。采用俄歇分析对接头强度进行了评价。然后，澄清，接合部分变得健全，如果沉积完成。此外，对两种表面的拟合过程进行了分析，指出了表面粗糙度对拟合的重要影响。最后，综合两者的考虑结果，设计了低损伤的切割和连接工艺。