Park, Soo-Hyun Nam, Eunseok Gang, Myeong Gu Min, Byung-Kwon
Published in
International Journal of Precision Engineering and Manufacturing
As product development cycles are getting shorter, faster determination of proper process conditions for the new designs and materials is increasingly important. To respond these requirements, a significant effort for cutting experiments are being replaced by simulation-based approaches called Virtual Machining (VM). Simultaneously, metal parts wit...
Cao, Chi-Tho Do, Van-Phu Lee, Byung-Ryong
Published in
International Journal of Precision Engineering and Manufacturing
Surface flaw detection has been advanced steadily for decades thank to the advent of computer vision and artificial intelligence. However, there exist serious defect detection challenges in tube manufacturing, including the lack of a collected dataset, decision-making ambiguity in engineering judgment, and unstable lighting condition of the environ...
Kim, Geonwoo Seo, Mu-Kyung Choi, Namkyoung Kim, Yong-Il Kim, Ki-Bok
Published in
International Journal of Precision Engineering and Manufacturing
Glass fiber reinforced plastics (GFRP) have been widely used for wind turbine blades because of the relative ease of manufacturing them into complex shapes, and their excellent fatigue and corrosion resistance. Acoustic emission (AE) testing has become a primary method for monitoring fiber reinforced plastic structures. However, commercial PZT base...
Soepangkat, Bobby O. P. Pramujati, Bambang Effendi, Mohammad Khoirul Norcahyo, Rachmadi Mufarrih, A. M.
Published in
International Journal of Precision Engineering and Manufacturing
An integrated approach has been applied to predict and optimize multi-performance characteristics, such as optimum thrust force (Fz), torque (Mz), hole surface roughness (Ra), delamination (D) and hole roundness (R), in drilling process of Kevlar fiber reinforced polymer. The experiments were performed by varying drill point geometry and drilling p...
Hwang, Jihong Cho, Young Hak Park, Min Soo Kim, Bo Hyun
Published in
International Journal of Precision Engineering and Manufacturing
Microchannels are the main features that characterize microfluidic devices. Also, glass is given priority in selecting a substrate material in the development of microfluidic devices due to its high degree of transparency, high chemical resistance, inertness to most substances, ability to sustain higher temperature, biological compatibility, and re...
Kim, Dong-Ryul Jang, Ki-Hwan Chu, Won-Shik Choi, Dahyun Lee, Woo Il Lee, Caroline Sunyong Ahn, Sung-Hoon
Published in
International Journal of Precision Engineering and Manufacturing
This paper investigates how people perceive the same material differently according to sex and nationality and what types of materials they prefer. We surveyed the sense of and preference for materials through questionnaires. The survey used five specimens made of zirconia, alumina, aluminum alloy, titanium alloy, and polycarbonate, and was conduct...
Park, Jungjae Kim, Jong-Ahn Ahn, Heulbi Bae, Jaeseok Jin, Jonghan
Published in
International Journal of Precision Engineering and Manufacturing
Thickness is a typical parameter related to length, of which measurements are conducted in various industrial fields, such as the automotive, aviation, ship-building, semiconductor, and display industries. Among various measurement techniques, optical interferometry is very attractive in terms of reliability owing to the direct realization of the m...
Chen, Chao Li, Xiaomin Belkacem, Abdelkader Nasreddine Qiao, Zhifeng Dong, Enzeng Tan, Wenjun Shin, Duk
Published in
International Journal of Precision Engineering and Manufacturing
Measurement and detection of ground information by airborne Lidar are one of the hot topics in the field of intelligent sensing in recent years. This study proposes a new point cloud classification algorithm of Mixed Kernel Function SVM to distinguish different types of ground objects. Firstly, the combined features including the coordinate values,...
Park, Dong-Hwan Kwon, Hyuk-Dong Kwon, Hyuk-Hong
Published in
International Journal of Precision Engineering and Manufacturing
Hot forging is a processing of plastic deformation for the metal at recrystallization temperature or higher. It is possible to decrease the flow stress and energy required to form the material at elevated temperature. But cold forging can improve mechanical properties, excellent dimensional accuracy, and surface quality. Main advantage of hot–cold ...
Cristofolini, I. Molinari, A. Zago, M. Amirabdollahian, S. Coube, O. Dougan, M. J. Larsson, M. Schneider, M. Valler, P. Voglhuber, J.
...
Published in
International Journal of Precision Engineering and Manufacturing
Anisotropic dimensional change on sintering may strongly affect the precision of parts produced by press and sinter. In previous work a design procedure accounting for anisotropic dimensional change of axi-symmetric parts (disks and rings) has been developed on the basis of experimental data. In this work the procedure has been applied to predict t...
