International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 08 | Aug 2025
p-ISSN: 2395-0072
www.irjet.net
“COMPARATIVE STUDY ON THE MECHANICAL PERFORMANCE OF 3D PRINTED PETG AND ABS MATERIAL” Pooja Gupta1, Ajeet Kumar2 1 M.Tech Student MED Sagar Institute of Technology & Management Barabanki UP India
2 Assistant Professor MED Sagar Institute of Technology & Management Barabanki UP India
---------------------------------------------------------------------***--------------------------------------------------------------------Abstract - This dissertation aims to investigate and compare the mechanical properties of 3D printed Acrylonitrile Butadiene Styrene (ABS) and Polyethylene Terephthalate Glycol (PETG) specimens widely used in medical, automotive and consumer industries. The study explores the fundamental principles of FDM technique of 3D Printing, its process parameters, and their impact on the mechanical characteristics of ABS and PETg materials. The research investigates the effects of key 3D Printing parameters such as layer thickness, infill density and print speed on tensile and flexural strength. Additionally, the dissertation evaluates the optimization techniques employed to enhance the 3D printing process for both ABS and PETG and compares the mechanical properties of both the materials.
Figure 1.2: Steps involved in 3D Printing 3D printing emerged in the late 20th century as a revolutionary shift in the field of manufacturing and prototyping. Its origin is tacked to early 1980s, when advancements in Computer Aided Design and laser technologies enabled the development of the first layer-bylayer fabrication techniques.
1.INTRODUCTION
The first patent for a 3D printing process was filed by Dr. Hideo Kodama in 1981, who described a method for producing 3D plastic models using a photosensitive resin. However, it was Charles Hull, co-founder of 3D Systems, who in 1986 patented Stereolithography (SLA)—the first widely recognized and commercially viable 3D printing technology. Hull's invention developed the base for modern additive manufacturing.
The process of 3-D printing entails producing tangible items from a geometric representation, layer-by-layer addition of material.
APPLICATIONS OF 3D PRINTING a. b. c. d.
Prototyping and Product Development Rapid prototyping is the most common use. Lightweight, strong components for aircraft and spacecraft (e.g., brackets, ducts). Customized drone parts and complex geometries not possible with traditional machining.
2. Literature Review Khabia and Jain [1] compared the characteristics of parts printed through ABS filament. They carefully modified the process parameters and the highest tensile strength of 35.7 MPa was achieved at lower level of machine variables.
Figure 1.1Illustration of 3D Printing Process Originally developed for rapid prototyping, additive manufacturing has evolved into a robust manufacturing solution for usable parts in aerospace, automobile, medical, consumer products, and architecture industries. It has ability of creating difficult geometries with minimal waste coupled with customization which makes it a vital tool for modern engineering and design.
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Durgashyam et al [2] performed investigation on mechanical characteristics of PETg. They perceived the influence of machine variables on flexural and tensile strength printed by FDM technique. The result depicts that for achieving better tensile strength, thickness of layer and feed should be lowered along with higher level of infill
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