• Proceedings of the KWS Conference
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• 2007.11a
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• pp.57-59
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• 2007

• Proceedings of the KWS Conference
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• 2001.10a
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• pp.7-10
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• 2001

• Proceedings of the KWS Conference
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• 1999.10a
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• pp.83-86
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• 1999

• Proceedings of the KWS Conference
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• 2000.04a
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• pp.224-227
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• 2000

• Proceedings of the KWS Conference
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• 2002.05a
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• pp.19-21
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• 2002

• Proceedings of the KWS Conference
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• 2004.05a
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• pp.209-211
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• 2004

자동차 차체의 조립공정에서 주로 사이리스터 방식의 저항 점 용접기를 이용해 용접을 하고 있으나, 최근에는 인버터방식을 이용하려는 시도가 진행되고 있다. (중략)

• Proceedings of the KWS Conference
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• 2004.05a
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• pp.285-287
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• 2004

최근 굴삭기의 대형화 및 고성능화 그리고, 내구성의 향상과 함께 다양한 작업 조건에 효율적인 운전 특성을 확보하기 위한 작업 장치의 구조 형상 최적화를 위한 많은 연구가 수행되고 있다［1,2］. (중략)

• The Journal of the Acoustical Society of Korea
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• v.28 no.7
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• pp.646-652
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• 2009

In this paper, welding pitch optimization technique of vehicle subframe is presented considering the fatigue life of spot welding nuggets. Fatigue life of spot welding nuggets is estimated by using the frequency-domain fatigue analysis technique. The input data, which are used in the fatigue analysis, are obtained by performing the dynamic analysis of vehicle model passing through the Belgian road profile and also the modal frequency response analysis of finite element model of vehicle subframe. According to the fatigue life result obtained from the frequency-domain fatigue analysis, the design points to optimize the weld pitch distance are determined. For obtaining the welding pitch combination to maximize the fatigue life of the spot welding nuggets, 4-factor, 3-level orthogonal array experimental design is used. This study shows that the optimized subframe improves the fatigue life of welding nugget with minimum fatigue life about 65.8 % as compared with the baseline design.

• Proceedings of the KWS Conference
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• 2004.05a
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• pp.261-263
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• 2004

상용차의 다양한 모델의 변화에 따른 여러 가지 용접부의 이음형태를 가지는 차체부품이 요구됨에 따라 생산성 향상을 위해 용접재의 두께별, 형태별 용접조건의 최적화가 시급히 요구된다$^{1.2)}$ . (중략)

• Journal of Welding and Joining
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• v.10 no.2
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• pp.32-42
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• 1992

A method of optimization of process parameters in Arc Welding has been discussed in this paper. The method of investigation is based on the numerical calculation of weld bead by a finite element method and non-linear optimization technique is applied to estimated the optimization process parameters from the numerical calculation. The common package program(ANSYS 4.4A) was used to obtain the process parameters for a thin plate arc welding (TIG, CO$_{2}$). The results on some test are satisfactory and the used method of this paper is a useful guide to the optimum welding condition.