• Title/Summary/Keyword: Under Rail Slide

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Forming Analysis for Optimization of 18 Stage Roll Forming Process (18단 롤포밍 공정의 최적화를 위한 롤포밍 성형해석)

  • Jung, Dong-Won;Park, Sang-Hu;Jeong, Ji-Hyun
    • Journal of Power System Engineering
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    • v.17 no.3
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    • pp.65-71
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    • 2013
  • The under rail slide is the latest device to make accurate rectilinear reciprocating motion. In these day, 3-point type is used mostly for the products requiring high strength and performance such as refrigerator door guide or furniture drawer guide. However, It is all imported from foreign countries due to lack of the roll forming technique to make 3-point type under rail slide in domestic. Therefore, design and manufacturing technology for the 3-point type under rail slide are need to development through systematic study. In this paper, to make center member of 3-point ball-type under rail slide for the refrigerator doors, the roll forming modeling and simulation are performed using Shape-RF software. Tensile test is performed about SCP-1 1/2H for determine the mechanical properties of materials. Interference between the roll and the final shape are predicted from the results of the simulation ; this result show that the desirable performance and usefulness of the designed roll forming process.

A Study on Forming Analysis for the Roll Forming Process of 3 Point Under Rail (3점 언더레일 슬라이드의 롤포밍 공정에 대한 성형해석연구)

  • Jung, D.W.;Park, S.H.;Jeong, J.H.
    • Journal of Power System Engineering
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    • v.16 no.6
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    • pp.52-58
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    • 2012
  • Roll forming process is one of the most widely used processes in the world for forming metals such as a furniture drawer guide or an up and down slide guide. It can manufacture goods of the uniform cross section on a large scale throughout the continuous processing. In the domestic design and manufacture, roll forming process for production is taking most of the method of 2-point under rail slide. However, this method is vulnerable to the structural strength and stiffness is not suitable for high load conditions. Therefore, through systematic study of high load, low noise 3-point ball type of under rail slide its own design and manufacturing technology is the need to build. In this paper, to make center member of 3-point ball-type under rail slide for the refrigerator doors, the roll forming modeling and simulation are performed. Tensile test is performed about SCP-1 1/2H for determine the mechanical properties of materials. Modeling and simulation of roll forming is used MSC.MARC software of a dedicated analysis program used by rigid plastic finite element method. Interference between the roll and the final shape are predicted from the results of the simulation.

The slip & slide simulator for train using induction motors (유도전동기를 이용한 열차의 공전활주 모의 시험기)

  • Byun, Yeun-Sub;Kim, Min-Soo;Lee, Young-Hoon;Kim, Young-Chol
    • Proceedings of the KIEE Conference
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    • 2006.07d
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    • pp.1879-1880
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    • 2006
  • In electric motor coaches, when the adhesion force between rail and driving wheel decreases suddenly, the electric motor coach has slip phenomena. The characteristics of adhesion force coefficient is strongly affected by the conditions between rails and driving wheels, such as moisture, dust, and oil on the rails and so on. This paper proposes the simulation system for slip & slide test using virtual train. We can easily research the adhesion characteristics and adhesion control method with this equipment under the sudden variation of the adhesion force coefficient.

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