The paper proposes using the specific downward force energy (SDFEreaction) value of silicon wafer soaked in room-temperature slurry. After CMP machine performs CMP of silicon wafer at room temperature, the paper combines gravimetric method with conjugate foci method of laser scanning confocal microscope (LSCM) to measure the total abrasive removal depths at different positions on the cross-section of silicon wafer surface and the average abrasive removal depth per minute at different positions ...

Roll-to-roll (R2R) processing is a widely used continuous manufacturing technique for flexible materials. However, the formation of longitudinal ridges, known as "tin-canning," remains a challenge, leading to uneven coating thickness, surface defects, and increased production costs. Currently, there are limited methods for real-time quantification of tin-canning during production. This study introduces an optical measurement system to quantify film wrinkling through image processing. A chessboar...

This study explores using banana peel slurry as a substrate in microbial fuel cells (MFCs) to enhance bioelectricity generation and sustainable waste management. Banana peels, a widely available agricultural byproduct, are rich in organic matter, making them an attractive source for bioenergy production. In this research, banana peel extract was utilized as the sole fuel source for MFCs, with E. coli acting as biocatalysts for electron transfer. The substrate concentrations tested were 25 g/L an...

This research aims to develop a one-sided exoskeleton that can rehabilitate individuals with hemiparesis. The exoskeleton actuator must generate sufficient torque for walking, which requires determining the patient’s hip moment. While Inverse dynamics is a standard method for estimating lower limb joint moments, it is challenging for individuals with limited mobility. To address this, a torque measurement system is proposed to find the hip moments during walking. The system is tested on five he...

Particles in Marine diesel exhaust can cause the impeller blades to wear, thus reducing its efficiency and service life. In order to elucidate this wear mechanism, a prediction model applicable to the wear behavior of the impeller blades is developed based on the Euler-Lagrange method and the Finnie wear model. On this basis, the effects of parameters such as opening, particle size, and surface roughness on blade wear behavior and flow field after wear are analyzed. The results show that the sma...

Since advanced processes often require high dust-free levels, it is necessary for the machinery industry to develop low-friction, anti-wear and low-dust technologies for drive elements that can be quickly printed and formed. Polylactic acid is often used in rapid printing components, and synthetic resin has a wide range of industrial applications, the two materials are often paired with each other to form driven elements. In order to achieve "smooth driving", the adhesive wear under dry friction...

In automotive applications, especially for the development of Electronic Control Units (ECU), Hardware-in-the-Loop (HiL) simulation plays a significant role, which requires high-precision models to simulate vehicles with key components like engine actuators. Most actuators are mechatronic systems with significant friction effects such that modeling these systems is not an easy task. This paper presents a comparative study of physical, Sliding-Mode-Observer-based (SMO) and data-driven models for ...

Recent image-based robotic systems use image identification to control robots in many industry fields. When the robot moves on an uneven ground the view of camera attached to the robot will be changed over time, and together with the effect of robot vibration the images will be blurred. Thus, the elimination of vibration of the mobile robot is very important for image processing with high accuracy. This paper presents the optimal design of an omnidirectional wheeled mobile robot (OMR) to reduce ...

Addressing the miniaturization and intelligence challenges of traditional Safety and Arming Devices (SAD), this study introduces a micro-recoverable inertial SAD capable under low overload. It integrates an inertial mass, gear set, and actuator, optimizing structure while ensuring security, reliability, and restorable safety states. Through modeling and validation, the optimal helical angle α range of 36°-53° ensures reliable unlocking and prevents self-locking. The SAD achieves a 1:3 efficient ...

Small diameter deep-hole drilling (SDDHD) of Ti-6Al-4V alloy has become a subject of concern to many researchers due to its common shortcomings such as poor hole quality, high unit energy consumption, short tool life, and high processing cost. When writing processing codes for parts on CNC machine tools, using the custom macro function (CMF) can reduce the overall programming time and cost compared with CAD/CAM systems. For different process applications, many studies use non-traditional machini...

Small diameter deep-hole drilling (SDDHD) of Ti-6Al-4V alloy has become a subject of concern to many researchers due to its common shortcomings such as poor hole quality, high unit energy consumption, short tool life, and high processing cost. When writing processing codes for parts on CNC machine tools, using the custom macro function (CMF) can reduce the overall programming time and cost compared with CAD/CAM systems. For different process applications, many studies use non-traditional machini...

Fatigue life prediction of metal matrix composites (MMCs) remains a complex task due to their unique crack propagation behaviors, including deflection and branching, which are influenced by the reinforcement matrix. This study employs the Rapidly-exploring Random Tree (RRT) algorithm to simulate crack paths in MMCs and integrates the Maximum Circumferential Stress Criterion to guide path planning. A modified Paris model is proposed to incorporate the effects of crack deflection and branching, ca...

Lithium base grease is a fundamental lubricating material that has been used widely in industrial equipment. However, its tribological performance is not adequate for the rapid development of advanced equipment. In this work, the influence of hexagonal boron nitride (h-BN) nanoparticles on the tribological performance of compound lithium grease was systematically examined. Comprehensive friction and wear tests were conducted utilizing a four-ball tribometer. The findings revealed that the lithiu...

In response to the challenging issue of titanium alloy wire processing, a finishing process equipment is used for surface turning and finishing processing. To improve the surface processing quality of the finishing equipment, an electromechanical coupling model is established, considering the interaction between the mechanical, electrical, and control systems. The accuracy of the mechanical dynamics model and the electromechanical coupling model is verified through experiments, and vibration cha...