The vibration phenomenon represents the cause of many problems in metal cutting processes. It has a big influence on the quality of the machining operation, tool life and machine precision. Drilling operation is a common metal cutting process where quality of the hole form is often a critical issue. Therefore, it was necessary to predict these vibrations. The first part of this paper deals with...

Drilling two different materials in a layer, or stack-up, is being practiced widely the aerospace industry to minimize critical dimension mismatch and error subsequent assembly process, but compatibility of drill compensate differing properties composite still major challenge industry. In this paper, effect customized twist geometry drilling parameters are investigated based on thrust force sig...

Drilling is one of the oldest and most important methods processing wood wood-based materials. Knowing optimum value factors that affect drilling process could lead both to high-quality furniture low-energy consumption during manufacturing process. In this work, artificial neural network modeling technique response surface methodology were employed reveal selected factors, namely, drill tip ang...

BACKGROUND Drilling is used in the medical field, especially in oral surgery and orthopaedics. In recent years, oral surgery involving dental implants has become more common. However, the risky drilling process causes serious accidents. To prevent these accidents, supporting systems such as robotic drilling systems are required. METHODS A telerobotic-assisted drilling system is proposed. An a...

Engineering plastics have specific properties in strength, hardness, impact resistance, and aging persistence, often used for structural plates electronic components. However, the holes made by drilling process always shrink after cutting heat dispersion due to their high thermal expansion coefficient. Drilling parameters must be discussed thoughtfully especially small-hole fabrication acquire ...

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 effect spindle speed, feed rate, drill diameter on generated thrust force, formation chips, post-machining tool condition, hole quality. The surface defects top bottom edge conditions were also investig...

Speed and position control systems for marine vehicles have been subject to an increased focus with respect to performance and safety. An example is represented by drilling operations performed with semi submersible rigs where the control of position and heading requires high accuracy. Drifting from the well position could cause severe damage to equipment and environment. Also, the use of under...

Speed and position control systems for marine vehicles have been subject to an increased focus with respect to performance and safety. An example is represented by drilling operations performed with semi submersible rigs where the control of position and heading requires high accuracy. Drifting from the well position could cause severe damage to equipment and environment. Also, the use of under...