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<p>Additive Manufacturing (AM) provides a route to a circular economy by letting us make things almost to their final shape. This piece of work creates a framework for AM that cuts down on waste, and is based on a circular economy. It focuses on re-processing the materials start with, using components again, and managing the whole life of a product in a closed circle. The framework contains re-cycling of polymer and metal powders with between 85 and 95% the powder being got back, and the mechanical qualities staying above 92% even after several times of re-use. Using 3D printing in a way that is good for the environment cut energy use by roughly fifteen to 30%, by making the best of settings and putting in light, lattice-type designs which made structural parts weigh 25 to 60% less. As well as this, making and re-using waste from the process it cut down on solid waste by close to 70%. These numerical values came from experiment and supported by recent literature studies on circular AM. A full Life Cycle Assessment shows that AM systems which are circular can cut greenhouse gas output by 18 to 35%, and lower the total cost of making things by 12 to 25%. When put against traditional methods of manufacture. The findings show that AM tech which is led by circularity is possible in practice and makes economic sense for big uses in industry, and gives real gains in how well we do for the environment, how well we use resources, and how cheaply we can make things.</p>

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Zero-waste additive manufacturing methods for a circular economy by recycling and lifecycle management

  • 期刊论文

  • 发表日期：

    2026年3月30日

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  • Sujeet Kumr,
  • Ranjith Nachimuthu,
  • Saravanan Ravichandran,
  • Farooque Ahmad,
  • Naveen Srinivas Madugula,
  • Srikanth Karumuri

摘要

Additive Manufacturing (AM) provides a route to a circular economy by letting us make things almost to their final shape. This piece of work creates a framework for AM that cuts down on waste, and is based on a circular economy. It focuses on re-processing the materials start with, using components again, and managing the whole life of a product in a closed circle. The framework contains re-cycling of polymer and metal powders with between 85 and 95% the powder being got back, and the mechanical qualities staying above 92% even after several times of re-use. Using 3D printing in a way that is good for the environment cut energy use by roughly fifteen to 30%, by making the best of settings and putting in light, lattice-type designs which made structural parts weigh 25 to 60% less. As well as this, making and re-using waste from the process it cut down on solid waste by close to 70%. These numerical values came from experiment and supported by recent literature studies on circular AM. A full Life Cycle Assessment shows that AM systems which are circular can cut greenhouse gas output by 18 to 35%, and lower the total cost of making things by 12 to 25%. When put against traditional methods of manufacture. The findings show that AM tech which is led by circularity is possible in practice and makes economic sense for big uses in industry, and gives real gains in how well we do for the environment, how well we use resources, and how cheaply we can make things.