Preliminary Tribological Study and Tool Life of Four Commercial Drills

Figueroa, M.; García, E.; Mühl, S.; Rodil, S.E.

doi:10.1080/10402004.2014.887166

Cited by 5 publications

(5 citation statements)

References 19 publications

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“…Micro-drilling is a common machining process that takes place in just twenty percent of the time required for traditional processes. It is estimated that around 250 billion drill tools are used annually in the US alone [ 36 ]. The need for micro-drilling was first recognized in the 1940s, leading to attempts to develop high-quality micro-tools [ 37 ].…”

Section: Thrust Force and Burr Formation In Micro-drillingmentioning

confidence: 99%

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Optimization of Micro-Drilling of Laminated Aluminum Composite Panel (Al–PE) Using Taguchi Orthogonal Array Design

et al. 2023

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Aluminum Matrix Composite (AMC) represents an innovative class of materials that is extensively utilized in industries such as automotive, defense, aerospace, structural engineering, sports, and electronics. This study investigates the thrust force, exit burr formation, changes in the micro-tool, and drilled hole diameters during the micro-drilling of an aluminum-polyethylene composite panel (Al–PE). The panel consists of 3501 series aluminum skin materials bonded to a polyethylene (PE) core. Micro-drilling test parameters were designed using Taguchi’s L16 (42 23) orthogonal array. Tests were conducted with five control parameters: cutting speed with four levels (10 m/min, 20 m/min, 30 m/min, 40 m/min), feed rate with four levels (0.5 µm/rev, 1 µm/rev, 2 µm/rev, 4 µm/rev), the tool diameter with two levels (0.7 mm, 1 mm), and tool point angle with two levels (100°, 140°) using both AlTiN-coated and uncoated drills. The maximum thrust force (Fz), maximum burr height, and changes in both the drill tool and hole diameters were measured for analysis of variance (ANOVA). The results showed that, in terms of impact on Fz, tool point angle had the highest positive influence (64.54%) on the micro-drill at the entrance of composite (upper aluminum plate). The cutting speed had the highest positive influence (45.32%) on the tool in the core layer (PE core layer). The tool point angle also had the highest positive influence (68.95%) on the micro-drill at the lower layer of the composite (the lower aluminum plate). There was noticeable chip adhesion on the major cutting edge and nose area under micro-drilling conditions with higher thrust forces and burr height. The AlTiN coating had a positive effect on tool wear and hole diameter deviations, but it adversely affected the burr height.

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Section: Thrust Force and Burr Formation In Micro-drillingmentioning

confidence: 99%

“…Meanwhile, in positions 4 and 5, the tool is approaching the hole exit, which corresponds to the stage of burr formation [39]. tools are used annually in the US alone [36]. The need for micro-drilling was first recognized in the 1940s, leading to attempts to develop high-quality micro-tools [37].…”

Section: Thrust Force and Burr Formation In Micro-drillingmentioning

confidence: 99%

Optimization of Micro-Drilling of Laminated Aluminum Composite Panel (Al–PE) Using Taguchi Orthogonal Array Design

et al. 2023

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“…Drilling, as one of the most commonly used machining techniques, has been used since ancient Egyptian times. Studies reveal that 25% of manufacturing time is involved in drilling processes [69]. It is estimated that approximately 250 million drill bits are used annually in the U.S. industry alone [69].…”

Section: History Of Micro Drillingmentioning

confidence: 99%

“…To meet the current demand, not only the size of the micro drill but also a wide range of other parameters are being studied in order to enhance the performance of micro drills. In commercial manufacturing companies the focus is mainly on the size, shape and materials of the micro drill, while researchers attention falls on the investigation of mechanical properties [99,122], simulation and numerical analysis [58,123], micro drill parameter optimisation [50,124], surface texture of drills [69,125], chip formation analysis [28,64], lubrication methods [126,127], inspection mechanisms [128,129], resharpening processes [130,131], perforation techniques in different types of specimen [132,133], effects of coating [134,135] and prevention of tool breakage [95,136].…”

Section: Advancements In Conventional Micro Drillingmentioning

confidence: 99%

“…To improve the efficiency, adequate cares must be taken to produce a micro drill of smoother surface, sharp and burr-free edges. Surface texture, to a great extent, depends on different makes; the grinding technology and precision they use, this also leads to the efficiency and price of a micro drill [69,125]. Lubrication is important to improve the cutting efficiency and drive away generated heat during operation and thus extend the tool life.…”

Section: Advancements In Conventional Micro Drillingmentioning

confidence: 99%

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A review of modern advancements in micro drilling techniques

Hasan

Zhao

Jiang

2017

Journal of Manufacturing Processes

176

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The demand for micro drilling with a diameter in a range of a few microns to several hundred microns is increasing in industries such as electronics, aerospace, medicine and automobiles, due to a significant uptake in the use of miniaturised products and devices. In order to satisfy the demand, a number of different micro drilling techniques have been developed. There has been, however, no report which explains, compares and contrasts all of these micro drilling techniques. This study examines the lasts micro drilling methods and techniques, categorises them into different groups, highlights recent developments and new trends, and depicts the future requirements in the field of micro drilling. Both conventional and non-conventional micro drilling techniques used in modern age applications are categorized. Conventional micro drilling makes use of drill bits of different configurations such as twist, spade, D-shaped, single flute, compound drill and coated micro drill, while non-conventional micro drilling involves electrical, chemical, mechanical and thermal means which include laser, EDM, ECM, SACE, electron beam, ultrasonic vibration or combinations of these approaches. We present here, a comparative study of conventional and non-conventional micro drilling techniques in order to show the potential and versatility of various micro drilling methods.

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Micromachining of Titanium Alloys

Mahbub

Jahan

2018

Micro and Nano Machining of Engineering Materials

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Preliminary Tribological Study and Tool Life of Four Commercial Drills

Cited by 5 publications

References 19 publications

Optimization of Micro-Drilling of Laminated Aluminum Composite Panel (Al–PE) Using Taguchi Orthogonal Array Design

Optimization of Micro-Drilling of Laminated Aluminum Composite Panel (Al–PE) Using Taguchi Orthogonal Array Design

A review of modern advancements in micro drilling techniques

Micromachining of Titanium Alloys

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