Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Young-Sik Pyoun"'
Autor:
Myungsung Kang, Joo-Hee Kang, Hyeonuk Park, Jun-Hyung Kim, Young-Sik Pyoun, Minjae Baek, Dong Jun Lee, Seung Jin Lee, Sanghu Park, Hong Moule Kim, Sung Hyuk Park, Yoon Suk Choi
Publikováno v:
Korean Journal of Metals and Materials. 60:169-179
An ultrasonic nanocrystal surface modification (UNSM) technique was applied to a 1-mm thick AZ31 magnesium sheet. UNSM is a relatively new surface modification technique in which a hard, hemispherical tip (2.38 mm in diameter) strikes the surface at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::061978f0119442263933446ee4e81ac3
https://doi.org/10.3365/kjmm.2022.60.3.169
https://doi.org/10.3365/kjmm.2022.60.3.169
Publikováno v:
International Journal of Precision Engineering and Manufacturing. 22:1271-1284
This study examines the effects of ultrasonic nanocrystal surface modification (UNSM) on D2 cold-work tool steel materials. Specifically, the effect on surface topology and mechanical properties due to different UNSM conditions is examined. Before UN
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2d703944b3b87dec9539cc845b02509
https://doi.org/10.1007/s12541-021-00536-8
https://doi.org/10.1007/s12541-021-00536-8
Publikováno v:
Transactions of the KSME C: Industrial Technology and Innovation. 1:129-138
Constant airflow should be kept in order to operate a constant-fired boiler of thermal power plants. Main Bearing Assembly Unit which rotates the ventilation fan does very important role to maintain constant airflow. However, the demand to the output
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3cf3fe9a1de85674c251d5c79c1d11cc
https://doi.org/10.3795/ksme-c.2013.1.1.129
https://doi.org/10.3795/ksme-c.2013.1.1.129
Autor:
Young-Sik Pyoun, Jong-Pil Cheon
Publikováno v:
Journal of The Korean Society of Manufacturing Technology Engineers. 21:897-902
Low speed vehicle(LSV), golf carts have unique requirements to differential gear design. For double axle torque LSV differential loading conditions were determined with the help of analytical model and ANSYS finite element analysis. With stress safet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abe197e42f099c190e506f7bf634334b
https://doi.org/10.7735/ksmte.2012.21.6.897
https://doi.org/10.7735/ksmte.2012.21.6.897
Autor:
Young-Sik Pyoun, Jong-Pil Cheon
Publikováno v:
Journal of manufacturing engineering & technology. 21:848-854
SCM420 steel cutting gear to improve the durability is quenched. When quenching, increases surface hardness, a change of the physical properties and machinability or fall. This study, using a solid carbide hobs skiving hobbing gear cutting finishing.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d73714a51b2cb59d52a6bf2b6d5a72e
https://doi.org/10.7735/ksmte.2012.21.5.848
https://doi.org/10.7735/ksmte.2012.21.5.848
Publikováno v:
Journal of Ocean Engineering and Technology. 25:80-85
The Ultrasonic Nanocrystal Surface Modification (UNSM) technology improves the fatigue life of a torsion bar by inducing compressive residual stress on the surface layer. The UNSM is applied to replace the presetting method and shot peening technolog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6c984198d31d953dbe3589f3db3909e
https://doi.org/10.5574/ksoe.2011.25.6.080
https://doi.org/10.5574/ksoe.2011.25.6.080
Publikováno v:
Journal of Ocean Engineering and Technology. 25:49-55
In order to analyze feasibility of replacing a conventional 6-mm Ti bar with a 5-mm bar, a series of rotating bending fatigue tests were carried out on Ti-6Al-4V bars by strengthening the fatigue performance using a special technique called UNSM (Ult
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9429f60a5a15c4cd7c7870876f9162e
https://doi.org/10.5574/ksoe.2011.25.6.049
https://doi.org/10.5574/ksoe.2011.25.6.049
Publikováno v:
Journal of Ocean Engineering and Technology. 25:42-48
The present study makes three original contributions to nanoskinned Ti-6Al-4V materials. The nanoskins were fabricated on Ti-6Al-4V material using various surface treatments: deep rolling (DR), laser shot peening (LSP), and ultrasonic nanocrystal sur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2caca85aba93ce06c28e6fd52eff2ee8
https://doi.org/10.5574/ksoe.2011.25.6.042
https://doi.org/10.5574/ksoe.2011.25.6.042
Publikováno v:
Precision Engineering. 35:153-163
An autonomous method to calibrate the zero-difference for the three-point method of measuring surface straightness is proposed. A simple cone-disc, which can be made by a CNC turning machine, is used for the calibration. The calibration method is com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7722e75a6e38b69819b6e55c95cbf3ac
https://doi.org/10.1016/j.precisioneng.2010.09.007
https://doi.org/10.1016/j.precisioneng.2010.09.007
Publikováno v:
International Journal of Modern Physics B. 24:2645-2650
At first, the specimens of SKD-61 are prepared and tested to verify the effects of ultrasonic nano-crystal surface modification (UNSM) technology on the variation of mechanical properties under static load variation. 20 kHz frequency was applied to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::863e524d47941fda23db10b9bfdd9bd7
https://doi.org/10.1142/s0217979210065404
https://doi.org/10.1142/s0217979210065404