Article
Automation & Control Systems
Sundar Marimuthu, Helen Elkington, Bethan Smith
Summary: This paper investigates the fundamental characteristics of quasi-continuous wave fiber laser drilling of thick aerospace alloy for the first time, highlighting the importance of choosing the correct gas composition and demonstrating high-quality and high-speed drilling of thick sections.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Kaori Nagai, Kazuki Shimizu
Summary: This study conducted concrete cutting experiments using a portable fibre laser, which showed similar cutting effectiveness to CO2 lasers. High-strength and low-strength concrete had almost identical cutting results, but the post-cutting situations varied. The research suggests laser concrete cutting as a solution for noise and dust related construction issues.
APPLIED SCIENCES-BASEL
(2021)
Article
Optics
I Sakaev, A. A. Ishaaya
Summary: The study introduces a strategy to reduce excessive melting at the top edge of the cut in laser assisted oxygen cutting of mild carbon steel, demonstrating high-quality cuts in 20 mm thick workpieces and lower quality separation in up to 40 mm steel thickness. The experimental results highlight the potential of high-power diode sources in LASOX cutting and the capability of compact and lightweight diode-based systems in cutting thick sections of mild steel.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Optics
Jae Sung Shin, Seong Y. Oh, Seung-Kyu Park, Hyunmin Park, Jonghwan Lee
Summary: In underwater laser cutting, oblique cutting significantly improves the initial cutting speed of thick steel plates, eliminating the need for low initial cutting speeds.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Optics
Alexander F. Courtier, Michael McDonnell, Matt Praeger, James A. Grant-Jacob, Christophe Codemard, Paul Harrison, Ben Mills, Michalis Zervas
Summary: Laser cutting can lead to defects such as striations, affecting cut quality, prompting interest in novel simulation methods like deep learning. Research shows that deep learning can directly determine laser cutting scanning speed and provide realistic surface predictions.
Article
Engineering, Manufacturing
Masoud Kardan, Nikita Levichev, Sylvie Castagne, Joost R. Duflou
Summary: This paper evaluates the laser cutting results using dynamic beam shaping (DBS) for different materials and thicknesses, and finds that DBS can significantly improve the cutting performance, especially for thick plates. The study also explores the effects of DBS parameters on cutting quality and their correlation with material removal mechanisms.
JOURNAL OF MANUFACTURING PROCESSES
(2023)
Article
Engineering, Manufacturing
James M. Maguire, Nathan D. Sharp, R. Byron Pipes, Conchur M. O. Bradaigh
Summary: Numerical modelling is used to simulate the manufacturing process of thick-section composite laminates, and different thermal cycles are explored to reduce thermal and cure gradients. The study shows the successful application of low exotherm epoxy powders and vacuum bag process in glass and carbon fiber systems, and determines the optimum thermal cycle. Additionally, energy efficient and cost-effective alternative heating methods are investigated.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Optics
I Esmail, H. Yazdani Sarvestani, J. Gholipour, B. Ashrafi
Summary: The study focuses on optimizing picosecond laser processing parameters to achieve precise and defect-free cut geometries on industrial grade alumina ceramics. By using a circular wobble laser pattern, it was found that greater cut depths can be achieved at lower linear speeds and wobble frequencies. The research also introduced optimal process parameters for balancing quality and material removal rate.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Chemistry, Physical
Massimo Latour, Sabatino Di Benedetto, Antonella Bianca Francavilla, Alberico Saldutti, Gianvittorio Rizzano
Summary: The component method is widely used for designing and modelling steel beam-to-column connections, with formulas provided in Eurocode 3 part 1.8. However, the use of 3D Laser Cutting Technology has expanded the range of solutions, especially for tubular columns with passing-through elements. Currently, there is a lack of design formulations for this typology, but ongoing research is being conducted to fill this gap and predict the behavior of its joint components.
Article
Automation & Control Systems
Bruna Aparecida Rezende, Frederico de Castro Magalhaes, Juan Carlos Campos Rubio
Summary: The generation of heat near the tool cutting edge leads to technical and economic problems, as it affects the workpiece's mechanical properties, tool wear, and cutting forces. Experimental and numerical simulation results can be used to predict the steady-state temperature distribution on the tool rake face. In this study, numerical modeling using FEM was performed, and three mathematical models were used to predict the interface temperature during the cutting process. Model III showed the best performance.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Shujing Wu, Dazhong Wang, Jiahui Yin
Summary: The surface texture tool can reduce cutting heat and force. The width of the tool texture has the greatest influence on cutting performance, followed by the depth and spacing. The study provides theoretical significance for improving cutting performance.
Article
Engineering, Manufacturing
Janos Kundrak, Bernhard Karpuschewski, Zoltan Palmai, Csaba Felho, Tamas Makkai, Dmytro Borysenko
Summary: This article summarizes the results of a project to study the cutting force during milling, which includes analyzing the technology using FEM simulation and validating it through cutting force measurements. The calculations show the importance of the chip ratio in determining the specific features of the technology, and it is advisable to avoid a chip ratio of ap/fz = 1 from an energy perspective.
CIRP JOURNAL OF MANUFACTURING SCIENCE AND TECHNOLOGY
(2021)
Article
Optics
Nikita Levichev, Goncalo Costa Rodrigues, Vitalii Vorkov, Joost R. Duflou
Summary: This paper investigates a coaxial camera-based monitoring system for fiber laser cutting of mild steel and stainless steel plates, analyzing the quality outcomes at different cutting speeds. Through calculating and analyzing intensity, geometrical, and variability features of obtained images, the correlation between process images obtained by a high-speed visual camera and cut specimen quality is discussed.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Mathematics, Applied
S. A. Eftekhari
Summary: A simple finite element procedure is introduced to solve the free vibration problem of rectangular plates by reducing the original plate problem to two simple beam problems and discretizing each beam problem separately using one-dimensional FEM. The proposed approach is easier to implement and demonstrates reliability and applicability through simulations of different boundary conditions, showing excellent agreement with existing analytical and numerical results.
APPLIED MATHEMATICS AND COMPUTATION
(2021)
Article
Engineering, Mechanical
Tomas Oplt, Tomas Vojtek, Radek Kubicek, Pavel Pokorny, Pavel Hutar
Summary: This paper presents a 3D finite element analysis of the effects of crack front shape, inserted cycles, and crack closure on the crack driving force. Crack closure disappeared in the internal part of the specimen in simulations with inserted cycles, and CTODp showed good agreement with experimentally measured values. The actual values of CTOD did not agree with the classical idea of 2D solutions.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Engineering, Manufacturing
Huseyin R. Borklu, Nurullah Yuksel, Kadir Cavdar, H. Kursad Sezer
JOURNAL OF ADVANCED MECHANICAL DESIGN SYSTEMS AND MANUFACTURING
(2018)
Article
Engineering, Multidisciplinary
Huseyin Kursad Sezer, Ogulcan Eren, Huseyin Riza Borklu, Veysel Ozdemir
JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY
(2019)
Article
Materials Science, Multidisciplinary
S. Marimuthu, A. M. Kamara, H. K. Sezer, L. Li, G. K. L. Ng
COMPUTATIONAL MATERIALS SCIENCE
(2014)
Article
Automation & Control Systems
Reza Negarestani, Lin Li, H. K. Sezer, David Whitehead, James Methven
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2010)
Article
Automation & Control Systems
Juan Carlos Hernandez-Castaneda, Huseyin Kursad Sezer, Lin Li
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2011)
Article
Automation & Control Systems
A. S. Elmesalamy, L. Li, J. A. Francis, H. K. Sezer
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2013)
Article
Engineering, Manufacturing
Yinzhou Yan, Lin Li, Kursad Sezer, David Whitehead, Lingfei Ji, Yong Bao, Yijian Jiang
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
(2012)
Article
Engineering, Industrial
Changsheng Dong, Yu Gu, Minlin Zhong, Lin Li, Kursad Sezer, Mingxing Ma, Wenjin Liu
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2011)
Article
Materials Science, Ceramics
Yinzhou Yan, Lin Li, Kursad Sezer, Wei Wang, David Whitehead, Lingfei Ji, Yong Bao, Yijian Jiang
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2011)
Article
Materials Science, Characterization & Testing
Hasan Basri Ulas, Musa Bilgin, Huseyin Kursad Sezer, Murat Tolga Ozkan
Article
Optics
Juan Carlos Hernandez-Castaneda, Huseyin Kursad Sezer, Lin Li
OPTICS AND LASERS IN ENGINEERING
(2011)
Article
Engineering, Manufacturing
H. Kursad Sezer, Ogulcan Eren
JOURNAL OF MANUFACTURING PROCESSES
(2019)
Article
Materials Science, Multidisciplinary
H. K. Sezer
LASERS IN ENGINEERING
(2018)
Article
Engineering, Multidisciplinary
Huseyin Kursad Sezer
JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI
(2016)