• 한국IT서비스학회:학술대회논문집
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• 2005.11a
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• pp.76-84
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• 2005

IT 아웃소싱은 IT의 비용 절감 및 핵심 역량 강화의 경영혁신 방법으로써 많은 국내외 기업에서 활발히 추진되고 있다. 그러나 국내 IT 아웃소싱은 산업별 또는 업종별로 제각기 다른 활성화 수준을 보여주고 있으며, 특히 은행업인 경우 선진국에 비해 IT 아웃소싱의 활용이 활발하지 못한 실정이다. 본 연구의 목적은 이와 같은 국내 은행의 IT 아웃소성이 해외 은행에 비해 비활성화 되어 있는 원인을 파악하고자 한다. 이러한 연구목적 달성을 위하여 본 연구에서는 거래비용이론과 계약이론을 고찰하여 국내 은행의 IT 아웃소싱이 비활성화 되어 있는 요인들을 도출하고 국내 및 해외 은행의 사례분석을 통하여 비교하였다. 본 연구를 통해 국내 은행 산업 군의 IT 아웃소싱 비활성화 원인을 심층적으로 살펴 봄과 동시에 국내 은행의 IT 아웃소싱을 활성화 할 수 있는 방안을 제시하고자 한다.

• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2001.10a
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• pp.351-353
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• 2001

• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2004.10a
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• pp.164-167
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• 2004

The draw, trim, flange, and cam forming processes of automotive fender panel are simulated, focused on the springbacks. Simulation results are compared with field try-out. In order to compensate the differences between simulation and try-out, the draw bead shapes in the simulation are modified and the accuracy of the simulation is improved by comparing blank draw-in amounts. The spring-backs after formings are also found in the simulation. Finally, the simulation procedures for analyzing the springbacks in all stamping processes are established.

• Proceedings of the Materials Research Society of Korea Conference
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• 2003.11a
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• pp.40-40
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• 2003

최근 나노기술의 발달과 더불어 나노재료에 대한 특성평가 요구가 높아지고 있고, 따라서 나노스케일에서 재료의 기계적 거동을 분석할 수 있는 나노인덴테이션 기법이 심도있게 연구되고 있다. 본 연구에서는 나노인덴테이션, 주사탐침현미경(SPM), 투과전자현미경(TEM) 기법을 이용하여 여러가지 재료의 탄성 소성 변형 거동과 팝인/괍아웃 현상을 조사하고 해석하였다. 나노인덴테이션 기법으로는 50 마이크로뉴턴 (5 mg) 이하의 매우 작은 하중 하에서는 접촉 응력조건이라도 인장시험에서 관찰되는 영구변형이 제로인 완전탄성 변형 거동을 관찰할 수 있었다. 또한, 50-250 마이크로 뉴턴의 하중 범위에서 재료는 탄성변형 이후에 갑작스런 항복거동과 더불어 수십-수백 나노미터를 미끌어지듯 변형하는 팝인(pop-in), 또는 탈선(excursion) 현상을 관찰할 수 있었다. 이 현상은 하중을 가하는 동안에 여러 번 발생하였으며 재료의 표면상태와 전위밀도와 밀접한 상관관계를 보였다. 반복 압입 시험에서는 전형적인 가공경화 현상으로 항복점이 높아지고 새로운 항복점 이후에야 다시 팝인 발생함을 보였다. 한편, 하중을 가할 때 발생하는 팝인과는 달리 하중을 제거할 때 급격히 회복하는 팝아웃 현상 또한 관찰되었다.

• Journal of Korean Port Research
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• v.13 no.2
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• pp.199-214
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• 1999

Recently leading edge companies use the Supply Chain Management as a competitive weapon to secure and maintain customer loyalty. As a consequency they are concentrating resources on the company’s core business and employing strategic alliances with third-party providers to ensure the company provides its customers’desired logistics service levels at acceptable costs. Under this circumstances this paper surveys the third party logistics as a leading edge logistics industry coping with the progress of the supply chain management. The status and the type of the TPL including the Forwarder are analyzed in the view point of global logistics. Also the development strategy of third party logistics in the future is suggested.

• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2001.05a
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• pp.59-62
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• 2001

Welded blank hydroforming technology is applied to an automotive subframe which has been manufactured by stamping and welding processes. Blank shape and die system is suggested on the basis of finite element analyses. Various defects, especially wrinkling problems in the area of sudden section change, are investigated, analyzed and tried out. The blank shape and the die system are modified to get the sound welded blank hydroformed subframe.

• Transactions of Materials Processing
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• v.22 no.2
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• pp.93-100
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• 2013

A tryout is a series of process optimization for robust stamping before transfer to the press shop. During tryout, the drawbead control, blank shape determination, binder surface modification, etc., are carried out mainly by a trial-and-error approach. As the level of difficulty of the stamping process increases, the formability becomes more sensitive to the contour of deformed shape, i.e. the blank shape. A digital tryout technique, which simulates a real tryout process, is proposed in this study for challenging stamping processes. Since digital tryout is carried out on a desktop, not in a press shop, a precise control of the deformed contour can be achieved if an optimal blank design technique is utilized. In this work, the proposed digital tryout technique is validated by successful applications to different automotive parts.

• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2004.10a
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• pp.132-137
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• 2004

In order to reduce automobile parts weight, TWB(Tailored welded blank) forming is widely used in the forming of car panel, such as door inner, side outer panels. In this study, one of the current problems of TWB forming was analyzed, especially for the try-out process of TWB door inner panel without frame. A comparison was made between actual panel measurements and results of forming analysis for formability and springback.

• Transactions of Materials Processing
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• v.8 no.2
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• pp.127-134
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• 1999

This study suggests the practical method which can reduce the lead time of the field trial and design of the dies. The virtual manufacturing, with which the die design is evaluated by computer analysis, reveals the impropriety of a design before die makings. Three methods for reducing the die making process occupying over 60% of the automotive development are like follows: First, the crack and wrinkle occurrence can be prevented by virtually adjusting the blank holding force and drawbead force with a computer simulation. Second, the parts which can not remove the forming defects in spite of the adjustment of forming parameters need to modify the part geometry or punch temporary shape. Third, the simulation before field trial, and field trial simulation can be effectively used in die design.

• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 1998.06a
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• pp.25-32
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• 1998

This study suggested the practical method which can reduce the lead time of the field trial and design of the dies. The virtual manufacturing, with the die design is evaluated by computer analysis, reveals the impropriety of a design before making dies. Three methods for reducing the die making process occupying over 60% of the automotive development are like fellows : First, the crack virtually adjusting the blank holding force and draw bead force with a computer simulation. Second, the parts which can not remove the forming defects in spite of the adjustment of forming process parameters need to modify the part geometry or punch temporary shape. Third, the simulation before trial, field trial, and field trial simulation can be used effectively in the die design.