The Development of Hybrid Manufacturing Systems for Skeleton Surface Object

• Main Authors: Shao-Wei Chen, 陳紹瑋
• Other Authors: 汪家昌
• Format: Others
• Language: zh-TW
• Online Access: http://ndltd.ncl.edu.tw/handle/duswp9

碩士 === 國立臺北科技大學 === 機電整合研究所 === 104 === The hybrid manufacturing systems in the market are based on the Direct Energy Deposition (DED) and Powder Bed Fusion (PBF) additive manufacturing process, to integrate the CNC subtractive manufacturing process. For example, the DED and CNC hybrid system using DED to form the green shape and using CNC to milling the outer surface. The PBF and CNC hybrid system using PBF to from the green shape with strong support structure followed by the CNC to cut the outer surface of the green shape. These two hybrid systems are not able to manufacturing parts with smooth inner surface and with elasticity hollow structures. The current project of “The development of subtractive and additive manufacturing for thin shell with hollow structure object” [34] proposes a new concept of the manufacturing process by changing the sequence of “additive first and subtractive later” to “subtractive first and additive later”. The progress of the above project has construct the concept machine, the CAD/CAM software, and is going to use solvent based TPU as the material to extrusion from a nozzle. Different from that project, the thermal plastic elastic material will be used and the thermal extrusion nozzle is going to be designed and used. Moreover, the designing software of the hollow structure object will be designed. And, the CAD/CAM system to generate the tooling path of the extrusion nozzle will be developed. The working volume of the new system is 100mm (diameter) x 200mm(length). The resulting parts are able to manufacturing parts with smooth inner surface and with elasticity hollow structures. The results of the system will bring the possibility to design and manufacture personal assistive device like kneepad brace.