| Summary: | 碩士 === 國立高雄科技大學 === 模具工程系 === 107 === 3D printing is different from traditional processing (subtractive manufacturing). 3D printing is more suitable for elastic manufacturing. It has great potential in customization,perfect material utilization without waste,and can make complex or hollow parts.The ability to quickly give back to the design side for corrections has made 3D printing a rapid development in recent years.
Now, 3D printing still has many problems to overcome: processing speed problems, limited materials,costly or expensive equipment,and precision and quality issues. 3D printing has become more and more widespread,and has come up with many new productions and technical process.Above all these problems are still unable to cross the threshold; therefore, 3D printing still cannot easily replace the traditional processing.
This study compares Fused Deposition Modeling with the development of a new 3D printing system. That integrates plastic plasticizing system, switch control system, printing stage system and control integration system, which can improve material limitation by direct feeding at the raw material end. In the case of wire, and through the switch control system to control the flow,and can replace the extrusion head of different apertures according to the needs.
In the study, from the layer thickness,line width, printing path, etc.the three printing parameters discussed the influence on the mechanical strength,and compared with injection molding and FDM, the results show that the increase in layer thickness and line width can stretch The strength is improved. The tensile strength of path 1 (0 ̊, 90 ̊) is greater than that of path 2 (+45 ̊, -45). Under the same material, the maximum tensile strength of the fused deposition of the rubber particles is about 74%~82% tensile strength,the same path and layer thickness, the production efficiency of colloidal fused deposition is about 2 times that of FDM.
|
|---|
