Dicky Oktavian, Braam Delfian Prihadianto, Wawan Budi Setyawan, Eka Legya Frannita

Analisis Kekuatan Material Hasil Teknologi Fused Deposition Modelling Sebagai Material Alternatif Shoelast

Introduction

Analisis kekuatan material hasil teknologi fused deposition modelling sebagai material alternatif shoelast. Analisis kekuatan material Fused Deposition Modelling (FDM) seperti PLA, ABS, dan PETG sebagai alternatif shoelast efisien. Temukan performa kompresi untuk prototipe alas kaki pada industri manufaktur.

Abstract

Pada industri alas kaki penggunaan shoelast merupakan aspek penting dalam proses manufaktur alas kaki. Dalam produksiMass, shoelast materials are generally made of wood, metal, or plastic which requires complex and high-costmanufacturing processes. For limited production needs, prototypes, or custom made materials require quite high costs andlong manufacturing process time. For limited production needs, alternative materials are needed that can be used asshoelast materials. This study aims to analyze the mechanical strength of the material produced by Fused DepositionModelling (FDM) technology as an alternative to shoelast making materials that are more flexible and efficient. The typesof materials used in this study are Polylactic Acid (PLA), Acrylonitrile Butadiene Styrene (ABS), and PolyethyleneTerephthalate Glycol (PETG). The three types of thermoplastic materials were printed with fill density variationparameters using a 3d printer and pressed testing was carried out. The data were analyzed by calculating the average valueand standard deviation of the compressive strength. The results showed that all materials have a compressive strengthhigher than 5 MPa, thus meeting the basic mechanical requirements as a shoelast material. Furthermore, PLA material hasthe characteristics that are suitable for making precise shoelast prototypes, but it is not suitable for repetitive lastingprocesses. While ABS material is more relevant for repetitive lasting processes and PETG material is relevant for limitedproduction but still requires durability

Review

The paper, titled "Analisis Kekuatan Material Hasil Teknologi Fused Deposition Modelling Sebagai Material Alternatif Shoelast," presents a timely and relevant investigation into the use of Fused Deposition Modelling (FDM) technology for producing alternative shoelast materials. The existing challenges in shoelast manufacturing, particularly the high cost and long lead times for prototypes, custom designs, or limited production runs using traditional materials like wood, metal, or conventional plastics, are well-articulated. This study directly addresses this gap by exploring the mechanical viability of 3D-printed thermoplastics as a more flexible and efficient solution, thus offering a potentially significant contribution to the footwear industry, especially for rapid prototyping and bespoke manufacturing. The methodological approach adopted by the authors is straightforward and appropriate for the stated objective. The selection of three commonly used FDM thermoplastics – Polylactic Acid (PLA), Acrylonitrile Butadiene Styrene (ABS), and Polyethylene Terephthalate Glycol (PETG) – with variations in fill density, provides a solid basis for comparative analysis. The choice of compressive strength testing is highly relevant, given the primary function of a shoelast in enduring pressure during the lasting process. The execution of printing parameters using a 3D printer and subsequent press testing, followed by basic statistical analysis (average and standard deviation), demonstrates a clear and reproducible experimental design aimed at assessing the fundamental mechanical properties critical for this application. The findings indicate that all tested FDM materials (PLA, ABS, and PETG) exhibit compressive strengths exceeding 5 MPa, thereby fulfilling the fundamental mechanical prerequisites for shoelast applications. The study effectively differentiates the materials, recommending PLA for precise prototypes but cautioning against its use in repetitive lasting processes, while identifying ABS as more suitable for repetitive tasks and PETG for durable limited production. A key strength of this work lies in its practical recommendations, linking material properties directly to specific industrial needs. For future research, it would be beneficial to explore other mechanical properties such as flexural strength, impact resistance, and creep, which are also crucial for shoelast durability, as well as conducting actual lasting process simulations or even full-scale field tests. Furthermore, a detailed cost-benefit analysis comparing FDM alternatives with traditional manufacturing for specific production volumes would strengthen the economic argument for adoption.

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