Water-assisted femtosecond laser drilling of alumina ceramics

Remanufacturing and Advanced Machining Processes for New Materials and Components

“…3D -milling, turning, grooving, and micromachining (Nagimova and Perveen, 2019) Laser drilling is a popular nonconventional microdrilling technique. Its main advantages are high processing speed, high efficiency, localized processing, high precision, cost-effectiveness, and no tool loss (Ren et al, 2021). There are four ways of laser drilling distinguished, namely, single pulse drilling, percussion drilling, trepanning, and helical trepanning.…”

Optimization mechanism and applications of ultrafast laser machining towards highly designable 3D micro/nano structuring

“…91,92 In addition to alloys, ultrafast laser drilling can be performed on polymers, ceramics, glass and other materials. 82,[93][94][95][96] Liu and co-workers fabricated an all-silicon uniform-aligned concave MLA through dry-etching-assisted femtosecond laser machining. 34 Jiao et al proposed a new method for applying a direct current to a silicon substrate during picosecond laser drilling.…”

Drilling of Al2O3 ceramic using ultrasonic assisted electrochemical discharge machining process

“…High hardness, electrical resistivity, wear resistance and corrosion resistance has made Al 2 O 3 as an appropriate candidate for cutting tool material in hard machining of difficult to cut materials such as alloy steels. [1][2][3] Due to these elevated properties, the machinability of Al 2 O 3 is low; hence particular methods must be utilized for processing this material.…”

“…Ultrasonic machining is another technique which has been used by several researchers for machining Al 2 O 3 ; in this method, abrasive particles are thrown towards the workpiece by severe impacts produced by ultrasonic vibrations, and consequently, the material removal process is performed. [2][3][4] However, ultrasonic machining suffers from low-dimensional accuracy, and therefore cannot be used for machining of precise features such as narrow grooves.…”

“…Al 2 O 3 can also be machined using laser beam machining; in this method, laser beam is focused on the workpiece surface, and due to highly concentrated heat source, the ceramic is melted or evaporated. 3,5,6 In this case, due to alumina's low heat transfer coefficient, the intense heat may lead to the generation of cracks or even cause failure. 7 Electrochemical discharge machining (ECDM) has been introduced as one of the best methods for machining of hard and non-conductive materials such as glasses and ceramics; this technique, which is a combination of electrical discharge machining and electrochemical machining, was first introduced by Kura Fuji for glass drilling.…”