PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Influence of tool corner radius on chip geometrical characteristics of machining Zr-based bulk metallic glass

Influence of tool corner radius on chip geometrical characteristics of machining Zr-based bulk metallic glass
2024-11-04
(Press-News.org)

Different from traditional alloys, BMGs exhibit a unique atomic arrangement characterized by short-range order and long-range disorder at the atomic level. Such atomic structure leads to the absence of defects such as grain boundaries and dislocations, resulting in exceptional mechanical properties. The promising properties of BMGs have rapidly positioned them as a new class of structural and functional materials, showing great application potential in various fields including structural, energy and chemical engineering. In order to facilitate their engineering applications, research has reported their cutting characteristics from various aspects, including optimizing cutting tools, developing suitable machining parameters, and revealing chip formation mechanisms. However, few studies were focused on the effects of tool geometric parameters on chip morphology. Since chip morphology reflects the state of cutting process and the chip formation process will affect the cutting characteristics, it is essential to fill this research gap.

Recently, an academic team led by Shunhua Chen from Hefei University of Technology, China reported the influence of tool corner radius on the chip geometrical characteristics of machining Zr-based BMGs. The Chip morphology under various tool corner radii was analyzed, which offered guidance for the selection of tool geometric parameters to achieve better surface quality and to expand the engineering applications of BMGs.

The team published their work in Journal of Advanced Manufacturing Science and Technology on Sep 5, 2024.

“In this work, the effect of corner radius on the chip formation of a Zr-based BMG was investigated. The shape and morphology of the chips in terms of chip shape, back surface morphology and serrated chip morphology were analyzed. Continuous ribbon-shaped chips were found during turning. Due to the low plasticity of BMG, chips were less curled than those of comparative materials. Burrs were observed due to the chip tearing and dropping off layer by layer along multiple scratches, and the burr formation differed significantly with different corner radii.” said Shunhua Chen, a full professor at School of Mechanical Engineering at Hefei University of Technology (China).

“As the corner radius increased, more shear bands developed, showing an increase in serrated frequency and more secondary shear bands within individual serrated sections. The formation of BMG chips was associated with multiple shear behaviors, including shearing in the primary shear zones (PSZs), multi-step shearing after the PSZs fracture, and secondary shearing within the individual serrated sections.” said Haidong Yang, associate professor at School of Mechanical Engineering at Hefei University of Technology (China), a senior expert whose research interests focus on the field of cutting tools.

The analysis of the stability of serrated chip formation during machining can help better understand the chip formation mechanisms, predict and regulate the machining process, and thereby improve machining efficiency, accuracy, and reliability, which was of great significance. “The stability of the serrated chip formation was expressed by three-parameter Weibull modulus. The Weibull modulus of the inclination angles of serrated chips increased with the increase of corner radius, indicating the transition of the serrated chip formation from unstable to stable, which was conducive to the formation of better machined surface. The findings gave more insights into the machining process of Zr-based BMGs, and open a new avenue to characterize the chips, establishing a good foundation for the practical application of BMGs and their parts.” said Shunhua Chen.

For the machining of BMGs, there still exist three aspects worthy of further investigations in future, i.e., the parametric characterization of chips, the physical process of chip formation and the effect of chip formation behavior on surface quality.

Other contributors include Libao Zhang, Haodong Li, Junsheng Zhang and Huohong Tang from the Hefei University of Technology, China.

This work was mainly supported by the Fundamental Research Funds for the Central Universities of China (Grant no. PA2024GDSK0060; PA2023GDSK0075) and the Ningbo Science and Technology Innovation 2025 Major Project (Grant no. 2022Z047).

 

About Author

Prof. Shunhua Chen, the group leader, is a full professor in School of Mechanical Engineering, Hefei University of Technology. He is the head of the Department of Mechanical Manufacturing Engineering. His research interests are mainly in the area of processing and manufacturing of advanced alloys, such as bulk metallic glasses (BMGs) and high entropy alloys (HEAs), including machining, EDM, ECM, data-driven optimization, microstructure and mechanical properties, and the development of advanced alloys. He has published over 100 research papers in prestigious international journals and received more than 30 Chinese national invention patents in recent years.

Dr. Haidong Yang, the first author, is an associate professor of Hefei University of Technology, and a council member of the China Metal Cutting Tool Engineering Association. His primary research areas include cutting tools, material procecing, and advanced manufacturing technologies.

About Journal of Advanced Manufacturing Science and Technology

Journal of Advanced Manufacturing Science and Technology (JAMST) is an open-access and peer-reviewed journal that was launched by Dalian University of Technology and Engineering Research Center of Advanced Manufacturing Technology for Aero Engine, Ministry of Education, Northwestern Polytechnical University in 2021. The journal is published by Tsinghua University Presss.

About SciOpen 

SciOpen is an open access resource of scientific and technical content published by Tsinghua University Press and its publishing partners. SciOpen provides end-to-end services across manuscript submission, peer review, content hosting, analytics, identity management, and expert advice to ensure each journal’s development. By digitalizing the publishing process, SciOpen widens the reach, deepens the impact, and accelerates the exchange of ideas.

END


[Attachments] See images for this press release:
Influence of tool corner radius on chip geometrical characteristics of machining Zr-based bulk metallic glass Influence of tool corner radius on chip geometrical characteristics of machining Zr-based bulk metallic glass 2 Influence of tool corner radius on chip geometrical characteristics of machining Zr-based bulk metallic glass 3

ELSE PRESS RELEASES FROM THIS DATE:

Megan Huisingh-Scheetz, MD, MPH, of the University of Chicago recognized with AFAR’s Terrie Fox Wetle Rising Star Award in Health Services and Aging Research

Megan Huisingh-Scheetz, MD, MPH, of the University of Chicago recognized with AFAR’s Terrie Fox Wetle Rising Star Award in Health Services and Aging Research
2024-11-04
New York, NY – The American Federation for Aging Research (AFAR), is proud to recognize the outstanding contributions of Megan Huisingh-Scheetz, MD, MPH, with the 2024 Terrie Fox Wetle Rising Star Award in Health Services and AgingResearch. This award honors a health services researcher in an early or middle phase of his/her career who has already made importantcontributions with work that respects the value of multidisciplinary health services science and that ...

Steven N. Austad, PhD, to receive inaugural George M. Martin Lifetime Achievement in Mentoring Award

Steven N. Austad, PhD, to receive inaugural George M. Martin Lifetime Achievement in Mentoring Award
2024-11-04
New York, NY­–The American Federation for Aging Research (AFAR) is pleased to announce the recipient of the inaugural George M. Martin Lifetime Achievement in Mentoring Award: Steven N. Austad, PhD, Protective Life Endowed Chair in Healthy Aging Research and a Distinguished Professor in the Department of Biology at the University of Alabama at Birmingham (UAB). The Award is named in honor of George M. Martin, MD (1927-2022), a pioneer in the field of aging research and AFAR’s Scientific Director for more than a decade. A Professor of Pathology at the University of Washington, Dr. Martin devoted his long, distinguished career to growing the field of aging ...

Jeremy D. Walston, MD, of Johns Hopkins University to receive AFAR 2024 Irving S. Wright Award of Distinction

Jeremy D. Walston, MD, of Johns Hopkins University to receive AFAR 2024 Irving S. Wright Award of Distinction
2024-11-04
New York, NY – The American Federation for Aging Research (AFAR), is pleased to recognize the exemplary contributions of Jeremy D. Walston, MD, to the field of aging research through the 2024 Irving S. Wright Award of Distinction. This award is named in honor of AFAR’s founder and recognizes exceptional contributions to basic or clinical research in the field of aging. Established in 1982, the award is a framed citation and carries a cash prize of $5,000. Dr. Walston, the Raymond and Anna Lublin Professor of Geriatric Medicine at Johns Hopkins University (JHU), holds multiple leadership roles at JHU, including Director of the Human Aging Project, ...

SwRI receives $23 million in U.S. Air Force contracts to sustain aging aircraft

SwRI receives $23 million in U.S. Air Force contracts to sustain aging aircraft
2024-11-04
SAN ANTONIO — November 4, 2024 —Southwest Research Institute has received two contracts totaling $23 million from the U.S. Air Force for a program to address aging aircraft structures and material degradation. Under these contracts, the Institute will help the Air Force modernize methods to sustain the T-38 Talon, the A-10 Thunderbolt and the B-52 Stratofortress. All three military aircraft first came into service more than 45 years ago. “SwRI will assist with the full spectrum of structural sustainment for these aircraft,” said Luciano Smith, manager of SwRI’s Structural Integrity Group. “Our analyses will help the Air Force know ...

Insilico Medicine enters into revolving loan facility of up to US$100 Million with HSBC

Insilico Medicine enters into revolving loan facility of up to US$100 Million with HSBC
2024-11-04
Insilico Medicine(“Insilico”), a global leading generative artificial intelligence (AI)-driven biotechnology company, today announced it has signed a Revolving Loan Facility of up to US$100 million with HSBC, one of the world's largest banks and financial services institutions. HSBC’s customized financing solution will support Insilico’s global development centered on multiple sites, as well as the expansion of innovative advantages, thus driving the economy growth in the Greater Bay Area. Insilico is committed to driving advancements in healthcare using cutting-edge AI technology, reducing costs and improving efficiency in early-stage ...

Security in quantum computing

2024-11-04
Alongside artificial intelligence, quantum computing is one of the fastest-growing subsets in the high-performance computing community. But what happens when this relatively new and powerful computing method reaches the limit of the cyberinfrastructure and network security capabilities of today? Researchers at the National Center for Supercomputing Applications are addressing this issue before it becomes a problem. “The problem is urgent because practical quantum computers will break classical encryption in the next decade,” ...

Noninvasive choroidal vessel analysis via deep learning: A new approach to choroidal optical coherence tomography angiography

Noninvasive choroidal vessel analysis via deep learning: A new approach to choroidal optical coherence tomography angiography
2024-11-04
Researchers from Peking University have developed a novel noninvasive choroidal angiography method that enables layer-wise visualization and evaluation of choroidal vessels using deep learning. This new approach, published in Health Data Science, employs an advanced segmentation model that can handle varying quality of optical coherence tomography (OCT) B-scans, making it a promising tool for clinical applications in diagnosing retinal diseases. Choroidal Optical Coherence Tomography Angiography (C-OCTA) offers a significant improvement in the analysis of choroidal vessels, a critical component in the ...

National Multiple Sclerosis Society awards $1M to Case Western Reserve University researchers to study new approach to treat the disease

National Multiple Sclerosis Society awards $1M to Case Western Reserve University researchers to study new approach to treat the disease
2024-11-04
CLEVELAND—Multiple sclerosis (MS) is a debilitating disease of the brain and spinal cord that impacts millions worldwide. In MS, the immune system mistakenly attacks the myelin sheath—a protective layer surrounding nerve cells in the nervous system. The loss of myelin, combined with ongoing inflammation, causes dysfunction and death of nerve cells, making the disability worse, such as difficulties with movement, coordination, and sensation. Treatments now focus on reducing attacks on myelin, but don’t address nerve-cell damage and death. But with $1 million from the National Multiple ...

Virginia Tech researchers find menthol restrictions may drive smokers to healthier alternatives

Virginia Tech researchers find menthol restrictions may drive smokers to healthier alternatives
2024-11-04
Nationwide, fewer people smoke than did a decade ago, but the proportion who smoke menthol-flavored cigarettes is on the rise. More than 9 million adults, or about 32 percent of all smokers, use menthol cigarettes, according to the Centers for Disease Control and Prevention. In Virginia, the proportion stands higher, at 38 percent. A team of researchers including Roberta Freitas-Lemos, assistant professor at Virginia Tech’s Fralin Biomedical Research Institute at VTC, found that if menthol products were unavailable, smokers found replacement therapies such as nicotine gum and lozenges were practical alternatives, potentially improving health outcomes for people who use menthol ...

Japanese study reveals the importance of new overtime restrictions on physician’s mental health

Japanese study reveals the importance of new overtime restrictions on physician’s mental health
2024-11-04
Physicians are a vital component of the healthcare landscape and along with other medical professionals, they ensure timely diagnosis, treatment, and management of complex illnesses. They regularly work extended and overnight shifts, often at the cost of sleep. However, the long duty hours of physicians can lead to physical and mental exhaustion, resulting in negative consequences such as depression and burnout. Consequently, this can affect their level of alertness and thus the quality of patient care. To protect the health of Japanese physicians, a duty hour reform went into effect ...

LAST 30 PRESS RELEASES:

Bacteria breakthrough could accelerate mosquito control schemes

Argonne to help drive AI revolution in astronomy with new institute led by Northwestern University

Medicaid funding for addiction treatment hasn’t curbed overdose deaths

UVA co-leads $2.9 million NIH investigation into where systems may fail people with disabilities

With the help of AI, UC Berkeley researchers confirm Hollywood is getting more diverse

Weight loss interventions associated with improvements in several symptoms of PCOS

Federal government may be overpaying for veterans’ health care in Medicare Advantage plans

Researchers awarded $2.5 million grant to increase lung cancer screenings in underserved communities

New trigger proposed for record-smashing 2022 Tonga eruption

Lupus Research Alliance announces Lupus Research Highlights at ACR Convergence 2024

Satellite imagery may help protect coastal forests from climate change

The secrets of baseball's magic mud

Toddlers understand concept of possibility

Small reductions to meat production in wealthier countries may help fight climate change, new analysis concludes

Scientists determine why some patients don’t respond well to wet macular degeneration treatment, show how new experimental drug can bridge gap

Did the world's best-preserved dinosaurs really die in 'Pompeii-type' events?

Not the usual suspects: Novel genetic basis of pest resistance to biotech crops

Jill Tarter to receive Inaugural Tarter Award for Innovation in the search for life beyond earth

Survey finds continued declines in HIV clinician workforce

Researchers home in on tumor vulnerabilities to improve odds of treating glioblastoma

Awareness of lung cancer screening remains low

Hospital COVID-19 burden and adverse event rates

NSF NOIRLab astronomers discover the fastest-feeding black hole in the early universe

Translational science reviews—a new JAMA review

How the keto diet could one day treat autoimmune disorders

Influence of tool corner radius on chip geometrical characteristics of machining Zr-based bulk metallic glass

Megan Huisingh-Scheetz, MD, MPH, of the University of Chicago recognized with AFAR’s Terrie Fox Wetle Rising Star Award in Health Services and Aging Research

Steven N. Austad, PhD, to receive inaugural George M. Martin Lifetime Achievement in Mentoring Award

Jeremy D. Walston, MD, of Johns Hopkins University to receive AFAR 2024 Irving S. Wright Award of Distinction

SwRI receives $23 million in U.S. Air Force contracts to sustain aging aircraft

[Press-News.org] Influence of tool corner radius on chip geometrical characteristics of machining Zr-based bulk metallic glass