半液態法-熔融沉積成型(Fused Deposition Modelling，Material Extrusion；FDM，ME)
簡介
材料先被捲成管狀或絲線狀，然後被餵入加熱器(heater)中受熱，在噴嘴口(nozzle)處熔融擠出，擠出後呈現半流體狀(類似牙膏)，並一層一層的沉積在升降平台(platform)上。
製造過程分為以下幾個步驟 :
- 在升降平台(platform)的橫截面上，第一層經由噴嘴口(nozzle)被加熱擠出。
- 第二層經由噴嘴口被加熱擠出，堆疊沉積在第一層上。
- 第三層、第四層…依此類推 (後層堆疊在前層上)。
- 重複相同步驟直到物件加工完畢。
比較表格
| Typical | Feasible | |
|---|---|---|
| Shapes: | ||
| Part size: | ||
| Materials: | ||
| Surface finish - Ra: | ||
| Tolerance: | ||
| Max wall thickness: | ||
| Quantity: | ||
| Lead time: | ||
| Advantages: | ||
| Disadvantages: | ||
| Applications: | ||
Disclaimer: All process specifications reflect the approximate range of a process's capabilities and should be viewed only as a guide. Actual capabilities are dependent upon the manufacturer, equipment, material, and part requirements.