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DEFORM을이용한 로터리 스웨이징 공정의 시뮬레이션에 대한 연구
임동재(Dong-jae Lim),정원지(Won-Jee Chung),설상석(Sang-Suk Sul),김대영(Dae-Young Kim),최경신(Kyung-Shin Choi),차태형(Tae-Hyung Cha) 한국기계가공학회 2019 한국기계가공학회지 Vol.18 No.6
Rotary swaging is a method of forging automotive drive shafts. In this paper, we propose a new two-hammer forging technique by applying the problem-solving approach TRIZ to improve the efficiency and productivity of the rotary swaging automation process. We will simplify the materials and hammers via the 3D modeling tool SolidWorks for high accuracy of a comparative analysis of existing and proposed methods under the same boundary conditions. In addition, we will compare the stress trends of the proposed model using ANSYS Workbench and verify the feasibility through a comparison of the simulation results using DEFORM. Relative to the existing method, the proposed method can decrease production costs and improve efficiency of the automation process by reducing the power source.
TRIZ와 DEFORM<SUP>Ⓡ</SUP>을 활용한 트랜지션 노즐의 성형 공정 개선을 위한 가변 금형에 대한 연구
황희건(Hui-Geon Hwang),정원지(Won-Jee Chung),설상석(Sang-Suk Sul),김대영(Dae-Young Kim) 한국기계가공학회 2020 한국기계가공학회지 Vol.19 No.6
Transition Nozzles are used in industrial air-cooled heat exchangers and widely used in industrial sites as an important component in the heat energy transfer between a heat source and an actuating fluid. There is a worldwide demand for transition nozzles with various materials and shapes, depending on the use environment. This paper aims to improve the transition nozzle forging process suitable for the production of many varieties using Steps 1 to 6 of the TRIZ Methodology for Problem Solving. By utilizing the TRIZ Methodology, this study derives a method to design a variable mold, which is more efficient and can reduce costs compared with having to use several molds. To verify the suitability of the methods derived using the TRIZ technique, a forging analysis is performed on a transition nozzle using DEFORMⓇ, a commercial program for plasticity analysis, and the nozzle material is evaluated for damage as a result of deformation of the transition nozzle thickness. The derived methods can be applied to transition nozzle formation equipment to improve the efficiency of the formation process.