Alan HASE
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View article: Identification and Evaluation of Tool Tip Contact and Cutting State Using AE Sensing in Ultra-Precision Micro Lathes
Identification and Evaluation of Tool Tip Contact and Cutting State Using AE Sensing in Ultra-Precision Micro Lathes Open
The growing demand for miniature mechanical components has increased the importance of ultra-precision micro machine tools and real-time monitoring. This study examines acoustic emission (AE) sensing for the intelligent control of an ultra…
View article: In Situ Measurement of the Machining State in Small-Diameter Drilling by Acoustic Emission Sensing
In Situ Measurement of the Machining State in Small-Diameter Drilling by Acoustic Emission Sensing Open
In drilling small holes with diameters of 1 mm or less, minute clogging and twining of chips or the adhesion of the workpiece material can become factors in causing breakages of the drill bit; moreover, it can be difficult to identify the …
View article: In Situ Measurement of the Machining State in Small-Diameter Drilling by Acoustic Emission Sensing
In Situ Measurement of the Machining State in Small-Diameter Drilling by Acoustic Emission Sensing Open
In drilling small holes with diameters of 1 mm or less, minute clogging and twining of chips or adhesion of the workpiece material can become factors in causing breakages of the drill bit; moreover, it can be difficult to identify the mach…
View article: A Novel Method for Education in Tribology through a Problem-Solving Game Activity: How Do You Win the Hearts and Minds of Children and Young People Who Will Bear the Future?
A Novel Method for Education in Tribology through a Problem-Solving Game Activity: How Do You Win the Hearts and Minds of Children and Young People Who Will Bear the Future? Open
Due to the continuing decrease in the proportion of young people in the population, it is likely to become more difficult to secure the researchers who will lead the next generation. To overcome this problem, it will be necessary to arouse…
View article: Identification of Tribological Phenomena under Electric Current Using AE Sensing
Identification of Tribological Phenomena under Electric Current Using AE Sensing Open
Wear under electric current causes more damage than normal friction due to the effects of arc discharge and melting. In this study, the characteristics of AE signal waveforms during wear under current application are extracted from the amp…
View article: Efforts on Environmental Energy and Engineering Education for Children Incorporating Problem-solving Game Activity:
Efforts on Environmental Energy and Engineering Education for Children Incorporating Problem-solving Game Activity: Open
Education of environmental energy and engineering technology for children, who will lead the next generation, is very important to realize a decarbonized society for the future and to achieve the Sustainable Development Goals (SDGs). The a…
View article: Identification of Tribological Phenomena in Glass Grinding by Acoustic Emission Sensing
Identification of Tribological Phenomena in Glass Grinding by Acoustic Emission Sensing Open
The purpose of this study is to identify tribological phenomena that occur on a machined surface under grinding, using acoustic emission (AE) sensing. The study investigated features exhibited by AE signals due to a change of state of the …
View article: Study on Reaction Mechanism of Sulfur and Phosphorus Type Additives Using an Acoustic Emission Technique
Study on Reaction Mechanism of Sulfur and Phosphorus Type Additives Using an Acoustic Emission Technique Open
Sulfur and phosphorus additives are used in lubricants as extreme-pressure and antiwear agents, which are typically used together to ensure reliability over a wide range of lubrication conditions. However, the working mechanism of the comb…
View article: Evaluation of Writing Performance for Different Types of Ballpoint Pen Ink by Acoustic Emission Sensing
Evaluation of Writing Performance for Different Types of Ballpoint Pen Ink by Acoustic Emission Sensing Open
During contact, deformation, and fracture of surface asperities between the friction surfaces of materials, acoustic emission (AE) waves are generated as the strain energy is released. By detecting the AE waves during friction using an AE …
View article: Identification of the Wear Process of a Silver-Plating Layer by Dual Acoustic Emission Sensing
Identification of the Wear Process of a Silver-Plating Layer by Dual Acoustic Emission Sensing Open
A method based on acoustic emission (AE) sensing in which two AE sensors are used to measure the tribological characteristics of two interacting friction materials simultaneously in real time was assessed for the in situ measurement and ev…
View article: Experimental evaluation of brake shoes for railway vehicles using AE method
Experimental evaluation of brake shoes for railway vehicles using AE method Open
Using an acoustic emission method (AE method), which utilizes the phenomenon of releasing the elastic energy stored inside as elastic waves when the material is deformed or fractured, a full-scale dynamo test bench of brake shoes for railw…
View article: Evaluation of Change in Abrasive Machining Performance by AE Sensing and In Situ Observation of Frictional Interface
Evaluation of Change in Abrasive Machining Performance by AE Sensing and In Situ Observation of Frictional Interface Open
The tribological phenomena that occur between abrasive grains and a work material are extremely complicated, and it is difficult to identify them. In this study, we focused on the change in abrasive machining performance under lubricated c…
View article: Early Detection and Identification of Fatigue Damage in Thrust Ball Bearings by an Acoustic Emission Technique
Early Detection and Identification of Fatigue Damage in Thrust Ball Bearings by an Acoustic Emission Technique Open
As rolling bearings are widely used in various machines, there is a strong need to detect any problems as early as possible. Although vibration analysis is commonly used in the diagnosis of rolling bearings, it is possible that the failure…
View article: Inquiry into AE Source during Plastic Deformation under Friction Surface by In Situ Observation of Frictional Interface
Inquiry into AE Source during Plastic Deformation under Friction Surface by In Situ Observation of Frictional Interface Open
Friction surfaces are hidden, and what is happening on the friction surface cannot be understood without opening, observing and analyzing. However, since the result is after the phenomena have already ended, it is hard to say that the actu…
View article: Identification of Tribological Phenomena in Grinding Process Using AE Sensing:
Identification of Tribological Phenomena in Grinding Process Using AE Sensing: Open
The tribological phenomena in grinding are microscopic and the in-process measurement is difficult. In this study, focusing on the identification of tribological phenomena during glass grinding, the AE signals were measured and analyzed in…
View article: Acoustic emission technique for contact detection and cutting state monitoring in ultra-precision turning
Acoustic emission technique for contact detection and cutting state monitoring in ultra-precision turning Open
A study to investigate contact detection and recognition of the cutting state by means of the acoustic emission (AE) technique in ultra-precision turning is presented. Detection of accurate cutting-edge position was achieved through invest…
View article: In Situ Observation and AE Measurement during Crack Propagation in Friction Surface of Glass
In Situ Observation and AE Measurement during Crack Propagation in Friction Surface of Glass Open
As for glass materials, since deformation and damage of the surface due to friction become starting points of cracks and it is likely to cause fracture, it is necessary to get an advanced understanding about the microscopic deformation and…
View article: Proposal and Evaluation of On-Machine Measurement System for Square End Milling in Machining Center by Acoustic Emission Technique
Proposal and Evaluation of On-Machine Measurement System for Square End Milling in Machining Center by Acoustic Emission Technique Open
In high-precision machining, knowing the precise diameter and length of the cutting tools and the correct setting of the coordinate system are very important. In general, the relative distance between the cutting edge and workpiece has to …
View article: Study on Detection of Tool Wear in End Mill Cutting by Acoustic Emission Method
Study on Detection of Tool Wear in End Mill Cutting by Acoustic Emission Method Open
Monitoring, analytical, and guidance and control technologies are required in intelligent machine tools. To meet the required machining accuracy of a product, the cutting process is monitored, and information such as tool wear is detected …
View article: Contact Detection and Monitoring of Cutting State by Acoustic Emission Technique in Ultra-Precision Turning
Contact Detection and Monitoring of Cutting State by Acoustic Emission Technique in Ultra-Precision Turning Open
The objective of this study was to investigate the recognition of the cutting state and contact detection by the acoustic emission (AE) technique in ultra-precision turning. To detect the accurate cutting-edge position, the contact limit b…
View article: Study on Monitoring and Control of Machining Process by Acoustic Emission Technique
Study on Monitoring and Control of Machining Process by Acoustic Emission Technique Open
In this study, the relationships between the frequency component of acoustic emission signals and the cutting state were examined in various machining processes such as turning, drilling and milling. As a result, it was found that adhesion…
View article: Study on Elementary Process of Adhesive Wear Using Scanning Probe Microscopy
Study on Elementary Process of Adhesive Wear Using Scanning Probe Microscopy Open
In the elementary process of adhesive wear, wear elements, which are the elemental debris of wear particles, are generated at junctions of asperities, and subsequently grow into transfer particles between sliding surfaces through a mutual …