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Research outputs 2014 to 2021

Hole quality

Publication Year

Articles 1 - 5 of 5

Full-Text Articles in Engineering

Effect Of Cutting Parameters And Tool Geometry On The Performance Analysis Of One-Shot Drilling Process Of Aa2024-T3, Muhammad Aamir, Khaled Giasin, Majid Tolouei-Rad, Israr Ud Din, Muhammad I. Hanif, Ugur Kuklu, Danil Y. Pimenov, Muhammad Ikhlaq Jan 2021

Effect Of Cutting Parameters And Tool Geometry On The Performance Analysis Of One-Shot Drilling Process Of Aa2024-T3, Muhammad Aamir, Khaled Giasin, Majid Tolouei-Rad, Israr Ud Din, Muhammad I. Hanif, Ugur Kuklu, Danil Y. Pimenov, Muhammad Ikhlaq

Research outputs 2014 to 2021

Drilling is an important machining process in various manufacturing industries. High-quality holes are possible with the proper selection of tools and cutting parameters. This study investigates the effect of spindle speed, feed rate, and drill diameter on the generated thrust force, the formation of chips, post-machining tool condition, and hole quality. The hole surface defects and the top and bottom edge conditions were also investigated using scan electron microscopy. The drilling tests were carried out on AA2024-T3 alloy under a dry drilling environment using 6 and 10 mm uncoated carbide tools. Analysis of Variance was employed to further evaluate the …


Multi-Hole Simultaneous Drilling Of Aluminium Alloy: A Preliminary Study And Evaluation Against One-Shot Drilling Process, Muhammad Aamir, Shanshan Tu, Khaled Giasin, Majid Tolouei-Rad Jan 2020

Multi-Hole Simultaneous Drilling Of Aluminium Alloy: A Preliminary Study And Evaluation Against One-Shot Drilling Process, Muhammad Aamir, Shanshan Tu, Khaled Giasin, Majid Tolouei-Rad

Research outputs 2014 to 2021

Poly-drill heads are used in mass production to increase productivity when a large number of holes are required. In this work, drilling experiments on Al5083 aluminium alloy were carried out using a poly-drill head to measure the thrust force and assess hole quality. Analysis of chip formations and post-machining tool condition were evaluated using optical microscopy. Additional drilling tests were conducted using one-shot drilling and results obtained from the two drilling techniques were evaluated against each other. The results showed that the average thrust forces obtained from poly-drill head were slightly lower than those from one-shot drilling. Improvement in hole …


Machinability Of Al2024, Al6061, And Al5083 Alloys Using Multi-Hole Simultaneous Drilling Approach, Muhammad Aamir, Majid Tolouei-Rad, Khaled Giasin, Ana Vafadar Jan 2020

Machinability Of Al2024, Al6061, And Al5083 Alloys Using Multi-Hole Simultaneous Drilling Approach, Muhammad Aamir, Majid Tolouei-Rad, Khaled Giasin, Ana Vafadar

Research outputs 2014 to 2021

Aluminium alloys are extensively used in different industries due to their good mechanical properties, machinability, low cost and reliable inspection. Drilling is one of the most important machining processes for assembly operations. The number of holes required in an assembly may vary from several holes to millions depending on the application which increases the manufacturing time and costs. In this study, a multi-spindle drill head also known as the poly-drill head is used to perform multi-hole simultaneous drilling with the aim to increase productivity. Dry drilling tests are performed on Al2024, Al6061, and Al5083 aluminium alloys using uncoated carbide …


Optimization And Modeling Of Process Parameters In Multi-Hole Simultaneous Drilling Using Taguchi Method And Fuzzy Logic Approach, Muhammad Aamir, Shanshan Tu, Majid Tolouei-Rad, Khaled Giasin, Ana Vafadar Jan 2020

Optimization And Modeling Of Process Parameters In Multi-Hole Simultaneous Drilling Using Taguchi Method And Fuzzy Logic Approach, Muhammad Aamir, Shanshan Tu, Majid Tolouei-Rad, Khaled Giasin, Ana Vafadar

Research outputs 2014 to 2021

In industries such as aerospace and automotive, drilling many holes is commonly required to assemble different structures where machined holes need to comply with tight geometric tolerances. Multi-spindle drilling using a poly-drill head is an industrial hole-making approach that allows drilling several holes simultaneously. Optimizing process parameters also improves machining processes. This work focuses on the optimization of drilling parameters and two drilling processes-namely, one-shot drilling and multi-hole drilling-using the Taguchi method. Analysis of variance and regression analysis was implemented to indicate the significance of drilling parameters and their impact on the measured responses i.e., surface roughness and hole size. …


Performance Analysis Of Multi-Spindle Drilling Of Al2024 With Tin And Ticn Coated Drills Using Experimental And Artificial Neural Networks Technique, Muhammad Aamir, Majid Tolouei-Rad, Ana Vafadar, Muhammad Nouman Amjad Raja, Khaled Giasin Jan 2020

Performance Analysis Of Multi-Spindle Drilling Of Al2024 With Tin And Ticn Coated Drills Using Experimental And Artificial Neural Networks Technique, Muhammad Aamir, Majid Tolouei-Rad, Ana Vafadar, Muhammad Nouman Amjad Raja, Khaled Giasin

Research outputs 2014 to 2021

Multi-spindle drilling simultaneously produces multiple holes to save time and increase productivity. The assessment of hole quality is important in any drilling process and is influenced by characteristics of the cutting tool, drilling parameters and machine capacity. This study investigates the drilling performance of uncoated carbide, and coated carbide (TiN and TiCN) drills when machining Al2024 aluminium alloy. Thrust force and characteristics of hole quality, such as the presence of burrs and surface roughness, were evaluated. The results show that the uncoated carbide drills performed better than the TiN and TiCN coated tools at low spindle speeds, while TiCN coated …