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초록보기

In keeping with the development of machine tools with higher speed, more axes, and a greater degree of sophistication,

thermal deformation is becoming an important factor in the precision of machine tools. It has been found that thermal error

accounts for about 70% of the total error in machine tools. As such, oil coolers which absorb heat from heat generating

parts with cold oil are being used to reduce the error caused by thermal deformation. The gas bypass type oil coolers used

in ultra-precision (temperature accuracy within ±0.1℃) machine tools are simple in structure and precise in terms of their

temperature control performance; however, they have a limitation as regards temperature control due to the instability of

their performance under light load conditions. In this study, an oil cooler system equipped with dual electronic valves was

developed to solve the problems of the single electronic valve system and achieve more precise temperature control. To

verify the performance of the developed system, its performance under the operating conditions of rated load, DIN 8602

standard, and ISO/DIS 230-3 operational mode was compared and analyzed. The proposed oil cooler system is applicable

to semiconductor equipment, ultra-precision injection molds, and ultra-precision machine tools, and improves the quality of

the products.

권호기사

권호기사 목록 테이블로 기사명, 저자명, 페이지, 원문, 기사목차 순으로 되어있습니다.
기사명 저자명 페이지 원문 목차
Grinding damage of BK7 using copper-resin bond coarse-grained diamond wheel Qingliang Zhao, Junyun Chen, Haitao Huang, Xiaoyan Fang pp.5-13

Cusp error reduction under high speed micro/meso-scale milling with ultrasonic vibration assistance Jeong Hoon Ko, Kah Chuan Shaw, Han Kwang Chua, Rong Ming Lin pp.15-20

Haptic-based resistance training machine and its application to biceps exercises Jaewoo Park, Kyungnam Kim, Daehie Hong pp.21-30

Brake performance evaluation of ABS with sliding mode controller on a split road with driver model DukSun Yun, HeungSeob Kim, KwangSuck Boo pp.31-38

Improvement of temperature accuracy in oil cooler systems with gas bypass Seung Woo Lee, Han Kil Yeom, Hwa Ki Lee pp.39-45

Effect of hydrophobic ionic liquid loading on characteristics and electromechanical performance of cellulose Suresha K. Mahadeva, Jaehwan Kim, Chulhee Jo pp.47-52

Integrated numerical analysis to evaluate replication characteristics of micro channels in a locally heated mold by selective induction Hyeju Eom, Keun Park pp.53-60

Computer-aided porous scaffold design for tissue engineering using triply periodic minimal surfaces Dong-Jin Yoo pp.61-71

Design of u-shape milled groove conformal cooling channels for plastic injection mold Xuan-Phuong Dang, Hong-Seok Park pp.73-84

A study on the ballistic damage tolerance design of aircraft structure from armor piercing bullet hits Jang-Wook Hur pp.85-90

Piezoelectric actuators for the correction of optical ray path in the operation of laser gyros Sang-Ho Lee, Woong-Hee Shon, Seung-Whan Suh, Seung-Nam Yu, Chang-Soo Han pp.91-96

An experimental study and finite element analysis of weatherstrip Wang Jin Jang, Jayone Lee, Chang Su Woo, Beom Keun Kim, Seong Beom Lee pp.97-104

Prediction of heating-line paths in induction heating process using the artificial neural network Truong-Thinh Nguyen, Young-Soo Yang, Ki-Seong Kim, Chung-Min Hyun pp.105-113

A compact ultra-precision air bearing stage with 3-DOF planar motions using electromagnetic motors Seung-Kook Ro, Jong-Kweon Park pp.115-119

Investigation of cutting parameters effect for minimization of sur face[i.e. surface] roughness in internal turning Muhammad Munawar, Joseph Ching-Shihn Chen, Nadeem Ahmad Mufti pp.121-127

Intact hip and knee joint moment in coronal plane with unilateral transfemoral amputee Yun Hee Chang, Tae Soo Bae, Shin Ki Kim, Mu Seong Mun, Wan-Hee Lee pp.129-134

Impact of traffic environment and cognitive workload on older drivers’ behavior in simulated driving Joonwoo Son, Yongtae Lee, Man-Ho Kim pp.135-141

The study of gender differences in physiological variables upon irradiation of therapeutic ultrasound Sung-Min Kim, Ju-Hwan Lee, Seung-Yeol Lee, Sung-Yun Park pp.143-148

Chemical mechanical planarization of copper bumps on printed circuit board MoonKi Jeong, SeungJae Jo, HyunSeop Lee, AhReum Lee, ChungYun Kang, JinWon Choi, JinHo Kim, HaeDo Jeong pp.149-152

Continuous functional analysis for axiomatic design Jeonghun Ahn, Sung Woon Cha pp.153-156

Polygon–based 3D surgical planning system for hip operation Yongtae Jun, Sehyung Park pp.157-160

Fabrication and measurement of the performance of a printed EMI shielding mesh filter on PET film Chung Hwan Kim, Yongshik Lee pp.161-164

Micro-Patterning on Non-Planar surface using flexible microstencil Jin Ho Choi, Gyu Man Kim pp.165-168

Comparison of gait and cognitive function among the elderly with Alzheimer’s disease, mild cognitive impairment and healthy Jin-Seung Choi, Ho-Sang Oh, Dong-Won Kang, Kyung-Ryul Mun, Mi-Hyun Choi, Su-Jeong Lee, Jae-Woong Yang, Soon-Cheol Chung, Suk-Woo Mun, Gye-Rae Tack pp.169-173

참고문헌 (11건) : 자료제공( 네이버학술정보 )

참고문헌 목록에 대한 테이블로 번호, 참고문헌, 국회도서관 소장유무로 구성되어 있습니다.
번호 참고문헌 국회도서관 소장유무
1 International Status of Thermal Error Research (1990) 네이버 미소장
2 Weck, M., McKeown, P. A., Bonse, R. and Herbst, U., “Reduction and compensation of thermal error in machine tools,” Annals of the CIRP, Vol. 42, No. 2, pp. 589-598, 1995. 미소장
3 Capacity Control for Refrigeration and Air-Conditioning Systems: A Comparative Study 네이버 미소장
4 A comparison of hot-gas by-pass and suction modulation method for partial load control in refrigerated shipping containers 네이버 미소장
5 Frost retardation of an air-source heat pump by the hot gas bypass method 네이버 미소장
6 Performance of a showcase refrigeration system with multi-evaporator during on–off cycling and hot-gas bypass defrost 네이버 미소장
7 Performances of Hot Gas Bypass Type Oil Cooler System 소장
8 Statham, A., Martin, A. and Blackshaw, D. M. S., “Assessing the thermal distortion caused by spindle rotation of a machining center using draft standard ISO/DIS 230-3,” Laser Metrology and Machining Performance III, Vol. 16, pp. 101-111, 1997. 미소장
9 Cycle performance study on R32/R125/R161 as an alternative refrigerant to R407C 네이버 미소장
10 Reliability Evaluation of an Oil Cooler for a High-Precision Machining Center 소장
11 Evaluation of machinability according to the changes in machine tools and cooling lubrication environments and optimization of cutting conditions using Taguchi method 소장

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