TY  - JOUR
T1  - THE EFFECT OF FDM PROCESS PARAMETERS ON THE MACHINABILITY OF PET-G MATERIAL: DELAMINATION ANALYSIS USING THE TAGUCHI APPROACH
TT  - THE EFFECT OF FDM PROCESS PARAMETERS ON THE MACHINABILITY OF PET-G MATERIAL: DELAMINATION ANALYSIS USING THE TAGUCHI APPROACH
AU  - Çevik, Zihni Alp
PY  - 2025
DA  - August
Y2  - 2025
DO  - 10.46519/ij3dptdi.1704399
JF  - International Journal of 3D Printing Technologies and Digital Industry
JO  - IJ3DPTDI
PB  - Kerim ÇETİNKAYA
WT  - DergiPark
SN  - 2602-3350
SP  - 310
EP  - 319
VL  - 9
IS  - 2
LA  - en
AB  - In this study, the machinability of PET-G (Polyethylene Terephthalate Glycol) material produced by Fused Deposition Modeling (FDM) was experimentally investigated under various manufacturing and machining parameters. The effects of key parameters influencing delamination—namely infill percentage, layer thickness, spindle speed, and feed rate—were specifically examined. Statistical data were obtained using the Taguchi method, and the results were analyzed in terms of both mean values and Signal-to-Noise (S/N) ratios. The findings revealed that infill percentage has a significant effect on delamination. The lowest delamination values were observed at a 100% infill level, while the highest delamination occurred at a 33% infill ratio. When layer thickness was increased from 1 mm to 2 mm, a reduction in delamination tendency was observed. An increase in spindle speed resulted in a notable rise in delamination, particularly at high rotational speeds (4500 rpm), where elevated cutting forces and temperature led to structural damage and delamination. The influence of feed rate on delamination was relatively minor. This study presents a comprehensive experimental analysis of both production parameters (infill percentage and layer thickness) and machining parameters (spindle speed and feed rate) for PET-G material. It is concluded that, for optimal machinability of PET-G manufactured via the FDM method, an infill percentage of 100% and a layer thickness of 2 mm are recommended. This work provides valuable guidance for quality control and parameter optimization in post-additive manufacturing machining processes.
KW  - FDM
KW  - PET-G
KW  - Machinability
KW  - Delamination
KW  - Taguchi Method
KW  - Parameter Optimization
N2  - In this study, the machinability of PET-G (Polyethylene Terephthalate Glycol) material produced by Fused Deposition Modeling (FDM) was experimentally investigated under various manufacturing and machining parameters. The effects of key parameters influencing delamination—namely infill percentage, layer thickness, spindle speed, and feed rate—were specifically examined. Statistical data were obtained using the Taguchi method, and the results were analyzed in terms of both mean values and Signal-to-Noise (S/N) ratios. The findings revealed that infill percentage has a significant effect on delamination. The lowest delamination values were observed at a 100% infill level, while the highest delamination occurred at a 33% infill ratio. When layer thickness was increased from 1 mm to 2 mm, a reduction in delamination tendency was observed. An increase in spindle speed resulted in a notable rise in delamination, particularly at high rotational speeds (4500 rpm), where elevated cutting forces and temperature led to structural damage and delamination. The influence of feed rate on delamination was relatively minor. This study presents a comprehensive experimental analysis of both production parameters (infill percentage and layer thickness) and machining parameters (spindle speed and feed rate) for PET-G material. It is concluded that, for optimal machinability of PET-G manufactured via the FDM method, an infill percentage of 100% and a layer thickness of 2 mm are recommended. This work provides valuable guidance for quality control and parameter optimization in post-additive manufacturing machining processes.
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UR  - https://doi.org/10.46519/ij3dptdi.1704399
L1  - https://dergipark.org.tr/en/download/article-file/4893220
ER  -