RSM-BASED STATISTICAL APPROACH TO ENHANCE THE COMPRESSIVE PERFORMANCE OF ABS P400 PARTS FABRICATED VIA FDM TECHNOLOGY

Author:

EQUBAL AZHAR1ORCID,EQUBAL MD. ASIF2ORCID,AHMAD RABNAWAZ3,KUMAR MANOJ2,KHAN OSAMA1ORCID,YAHYA ZEINEBOU4ORCID,ALHODAIB AIYESHAH4ORCID,YADAV ASHOK KUMAR5ORCID

Affiliation:

1. Department of Mechanical Engineering, Jamia Millia Islamia, New Delhi 110025, India

2. Department of Mechanical Engineering, Gaya College of Engineering, Khizarsarai Gaya 823003, Bihar, India

3. Department of Mechanical Engineering, Government Engineering College, Jehanabad 804407, Bihar, India

4. Department of Physics, College of Science, Qassim University, Buraidah, Al-Qassim 51452, Saudi Arabia

5. Department of Mechanical Engineering, Raj Kumar Goel Institute of Technology, Ghaziabad, 201003 Uttar Pradesh, India

Abstract

This research investigates the performance of ABS P400 parts under compressive loading. These ABS P400 parts are fabricated by fused deposition modeling (FDM) process using omnidirectional printing. The effects of three critical parameters, raster angle (A), air gap (B), and raster width (C), each at three different levels, were analyzed on three different performance measures, i.e. total deformation up to failure ([Formula: see text]) measured in %, maximum energy ([Formula: see text]) in MJ/m3 and break energy ([Formula: see text]) in MJ/m3. Results of experimentations were analyzed using analysis of variance (ANOVA), perturbation curve and 3D surface plots. The research established the anisotropic nature, durability and less brittleness of the FDM fabricated ABSP400 part, which leads to lower strength and also influence the energy absorbing behavior while deformation under compression. Complex relationships were exhibited between the chosen parameters and studied measures. It was also observed that [Formula: see text] is noticeable due to less brittleness of ABS P400 however, [Formula: see text] and [Formula: see text] vary in a contradictory fashion with changes in process parameters. The models were validated using normality plots. Multi-objective optimization was done using the desirability approach to determine the optimal combination of FDM process parameters for optimum responses. The desirability result showed that the optimized input parameter is [Formula: see text][Formula: see text]mm, and [Formula: see text][Formula: see text]mm which yield maximized optimum responses as [Formula: see text]%, [Formula: see text][Formula: see text]MJ/m3, and [Formula: see text][Formula: see text]MJ/m3. The work not only reflects the effect of three FDM parameters on the total deformation up to failure ([Formula: see text] in %) but, in addition, energy absorption behavior of FDM parts under compression is also investigated. The study on the behavior of energy at ultimate stress or ultimate load and breaking stress or breaking load were rarely investigated in earlier research which reflects the novelty of our research.

Publisher

World Scientific Pub Co Pte Ltd

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