綠色製造趨勢，3D列印產業成長機會

3D列印為加法製程，相較於減法製造，僅在需要的位置給予需要的材料，按需製造技術，總是被直觀地認定為綠色製造技術，具有環境可持續（sustainable）優勢。然而3D列印技術需要更嚴謹地評定與分析，考慮整個生命週期、端到端的可持續性，完整評估3D列印產業在材料、設備能耗、供應鏈、回收之整個生命週期，相較於傳統製造之真正環境永續效益，將可加速應用產業之技術採用，雖然尚有更多挑戰，但也是另一成長機會。

關鍵字

3D列印；可持續性；生命週期評估

並列摘要

3D printing is an additive process. Compared with subtractive manufacturing, only the materials needed are given where needed. On-demand manufacturing technology is always intuitively recognized as a green manufacturing technology and has environmentally sustainable advantages. However, 3D printing technology needs to be evaluated and analyzed more rigorously, considering the entire life cycle and end-to-end sustainability, and fully evaluating the entire life cycle of the 3D printing industry in terms of materials, equipment energy consumption, supply chain, and recycling. The true environmental sustainability benefits of 3D printing manufacturing compared with traditional manufacturing will accelerate technology adoption in application industries. Although there are still more challenges, it is also another opportunity for growth.