Design for Sustainability by Additive Manufacturing: A Study of PLA-Based Door Handle Redesign
Nikodmose Moges Gebre,
Pasquale Gallo () and
Stefano Rossi
Additional contact information
Nikodmose Moges Gebre: Department of Industrial Engineering, Università di Trento, Via Sommarive 9, 38123 Trento, Italy
Pasquale Gallo: Department of Industrial Engineering, Università di Trento, Via Sommarive 9, 38123 Trento, Italy
Stefano Rossi: Department of Industrial Engineering, Università di Trento, Via Sommarive 9, 38123 Trento, Italy
Sustainability, 2025, vol. 17, issue 11, 1-17
Abstract:
This paper presents the redesign of a door handle as a case study in applying long-life manufacturing (LLM) principles to the furniture sector, utilizing additive manufacturing with polylactic acid (PLA), a biodegradable and sustainable polymer. The primary objective of this study is to explore the potential of PLA-based components to enhance sustainability, repairability, and durability in everyday furniture items. A door handle was chosen as a representative product to demonstrate the feasibility of this approach. The redesign emphasizes the potential for consumers to 3D print and replace parts as needed, thereby reducing waste and extending product life-cycles. To assess the material’s performance, PLA door handles were subjected to degradation tests under UV light exposure and thermal cycles, simulating real-world conditions. The redesigned handles demonstrated a mass reduction of over 50% compared to the original target, while retaining more than 95% of their initial tensile strength after 14 days of UV-B exposure and thermal cycling between 5 °C and 50 °C. The color change remained minimal, particularly for the white-painted samples, indicating satisfactory aesthetic stability. This research contributes to the growing field of sustainable design, highlighting how additive manufacturing can transform the furniture industry by promoting a circular economy through repairable, durable, and eco-friendly solutions.
Keywords: additive manufacturing; long-life manufacturing; sustainability; polylactic acid (PLA); repairability; circular economy; design; green manufacturing (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:
Downloads: (external link)
https://www.mdpi.com/2071-1050/17/11/4969/pdf (application/pdf)
https://www.mdpi.com/2071-1050/17/11/4969/ (text/html)
Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
HTML/Text
Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:17:y:2025:i:11:p:4969-:d:1666754
Access Statistics for this article
Sustainability is currently edited by Ms. Alexandra Wu
More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().