Publication:
Investigating twist drill design influence on thrust force and surface roughness in drilling AFRP Al7075-T6 stacks materials
Investigating twist drill design influence on thrust force and surface roughness in drilling AFRP Al7075-T6 stacks materials
| dc.contributor.author | C. T. Xiang | |
| dc.contributor.author | M. R Abdul Razak | |
| dc.contributor.author | M. H Hassan | |
| dc.contributor.author | M. F. Razali | |
| dc.date.accessioned | 2024-11-06T03:36:28Z | |
| dc.date.available | 2024-11-06T03:36:28Z | |
| dc.date.issued | 2024-06 | |
| dc.description.abstract | Drilling Aramid Fiber-Reinforced Plastic (AFRP) presents unique challenges when compared to drilling other composite panels. These difficulties arise from the high-toughness characteristics of aramid fibers, which exhibit a tendency for ductile deformation during the drilling process. This research explores the influence of drill bit design on the drilling process stack-up materials, which comprise Aramid Fiber Reinforced Plastic Composite Laminates (AFRP) and Aluminum Al7075-T6. Three distinct bit designs were employed in the experiment, conducted on a Computer Numerical Control (CNC) machine operating at a spindle speed of 2000 rev/min and a feed rate of 0.05 mm/rev. To measure thrust force during drilling, a dynamometer was integrated into the setup. Subsequently, a roughness tester was utilized to assess the hole surface roughness of the stack-up materials. For AFRP materials, the w-point drill design emerged as the optimal choice, reducing thrust force by approximately 5% to 13% compared to other drill bit designs. Conversely, for Al7075-T6 panels, the tapered web drill design demonstrated exceptional results, lowering thrust force by approximately 21% and 50% in comparison to burnishing and w-point drill bits, respectively. In terms of hole surface roughness, the burnishing drill type consistently produced the smoothest surfaces, boasting significant improvements of 44% and 82% when compared to the tapered web and w-point drill bits for AFRP panels. Similarly, for Al7075-T6 panels, the burnishing drill type consistently outperformed the tapered web and w-point drill bits by 74% and 88%, respectively, in achieving a superior hole surface finish. These findings underscore the critical importance of selecting the appropriate drill bit design to optimize thrust force reduction and hole surface quality when working with stack-up materials. | |
| dc.identifier.uri | https://ejournal.unimap.edu.my/index.php/ijneam/issue/view/66 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14170/9666 | |
| dc.language.iso | en | |
| dc.relation.ispartof | International Journal of Nanoelectronics and Materials (IJNeaM) | |
| dc.relation.issn | 1985-5761 | |
| dc.subject | Twist drill design | |
| dc.subject | Hole surface roughness | |
| dc.subject | Thrust force | |
| dc.subject | Stack-up material | |
| dc.title | Investigating twist drill design influence on thrust force and surface roughness in drilling AFRP Al7075-T6 stacks materials | |
| dc.type | Resource Types::text::journal::journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 256 | |
| oaire.citation.issue | 6 (Special Issue IconMAR 2023) | |
| oaire.citation.startPage | 251 | |
| oaire.citation.volume | 17 | |
| oairecerif.author.affiliation | Universiti Sains Malaysia | |
| oairecerif.author.affiliation | Universiti Sains Malaysia | |
| oairecerif.author.affiliation | Universiti Sains Malaysia | |
| oairecerif.author.affiliation | Universiti Sains Malaysia |
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