Search Results - "Im, Y.T."

Thermo-elasto-plastic finite element analysis of quenching process of carbon steel by Kang, S.H., Im, Y.T.

“…Quenching is one of manufacturing processes used for improving mechanical properties such as strength, hardness, and wear/fatigue resistances of the mechanical…”
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Effect of initial microstructure on mechanical properties in warm caliber rolling of high carbon steel by Oh, Y.S., Son, I.H., Jung, K.H., Kim, D.K., Lee, D.L., Im, Y.T.

“…► The effect of initial microstructure on change of micro-hardness, tension, and Charpy tests were investigated by warm caliber rolling (WCR). ► Smaller…”
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Flow characteristics of continuous shear drawing of high carbon steel by Hwang, S.K., Jin, Y.G., Son, I.H., Rhee, K.H., Lee, D.L., Im, Y.T.

“…Equal channel angular drawing (ECAD) is a method to obtain the material with large plastic deformation in a continuous way. While flow instability tends to…”
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The effect of shrink fitting ratios on tool life in bolt forming processes by Lee, H.C., Saroosh, M.A., Song, J.H., Im, Y.T.

“…Increasing the service life of cold forging dies with respect to fatigue is a key issue in the highly competitive tool manufacturing market. In industry,…”
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Processing map approach for surface defect prediction in the hot bar rolling by Kim, H.Y., Kwon, H.C., Lee, H.W., Im, Y.T., Byon, S.M., Park, H.D.

“…Since the surface defect frequently encountered in the hot bar rolling of steel can easily lead to a fatal manufacturing defect during the secondary cold…”
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Forgeability of ultra-fine grained aluminum alloy for bolt forming by Choi, J.S., Nawaz, S., Hwang, S.K., Lee, H.C., Im, Y.T.

“…In the present investigation, an equal channel angular extrusion (ECAE) was used to make bulk nanostructure of the commercially available aluminum alloy AA1050…”
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Deformation behavior of the surface defects of low carbon steel in wire rod rolling by Son, I.H., Lee, J.D., Choi, S., Lee, D.L., Im, Y.T.

“…High surface quality of low carbon steel wire rod is essential to forge mechanical parts since a small surface defect can initiate the crack propagation. The…”
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Plastic work approach for surface defect prediction in the hot bar rolling process by Awais, Muhammad, Lee, H.W., Im, Y.T., Kwon, H.C., Byon, S.M., Park, H.D.

“…In this study, a numerical technique was developed to study the effect of processing parameters on instability of the steel during five passes hot bar rolling…”
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Tool life prediction for the bolt forming process based on high-cycle fatigue and wear by Lee, H.C., Lee, Y., Lee, S.Y., Choi, S., Lee, D.L., Im, Y.T.

“…In the present investigation an integrated model for predicting tool life in the cold forging process considering the high-cycle fatigue and wear is proposed…”
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Sensitivity of friction condition in finite element investigations of equal channel angular extrusion by SON, I. H, JIN, Y. G, IM, Y. T, CHON, S. H, PARK, J. K

“…Equal channel angular extrusion (ECAE) is an effective forming technique that increases the material strength by accumulating plastic strain into the workpiece…”
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Determination of forming limit of a structural aluminum tube in rubber pad bending by Lee, J.W., Kwon, H.C., Rhee, M.H., Im, Y.T.

“…Rubber pad bending is a novel technique for producing space frame to reduce the weight of automobiles because it can produce bent profiles with various…”
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Instability map based on specific plastic work criterion for hot deformation by Lee, H.W, Kwon, H.C, Awais, M, Im, Y.T

“…Estimating workability is very important to complete the hot or cold working process successfully without making any crack. Instability map was developed by…”
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A microstructure evolution model for numerical prediction of austenite grain size distribution by Jung, K.H., Lee, H.W., Im, Y.T.

“…In this study, a mathematical model has been developed to predict austenite grain size (AGS) of hot rolled steel. Using the compression test, the static (SRX)…”
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Friction measurement by the tip test for cold forging by Jung, K.H., Lee, H.C., Kim, D.K., Kang, S.H., Im, Y.T.

“…► We made an attempt to reduce the friction in the compression test. ► K and n values AL6061-O and 2024-O were dropped by 10.7% and 14.3%, and 7.5% and 20.8%,…”
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Finite element analysis of plastic deformation of CP-Ti by multi-pass equal channel angular extrusion at medium hot-working temperature by ZHANG, Z. J, SON, I. H, IM, Y. T, PARK, J. K

“…The plastic deformation of commercially pure (CP) titanium by multi-pass equal channel angular extrusion (ECAE), at medium hot-working temperature, was…”
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Development of a computer-aided-design system of cold forward extrusion of a spur gear by Song, J.H., Im, Y.T.

“…In this study, a computer-aided-design system for manufacturing a spur gear in cold forward extrusion was developed under a graphical user interface…”
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Gate location design in injection molding of an automobile junction box with integral hinges by Kim, H.S, Son, J.S, Im, Y.T

“…Polymers such as polypropylene or polyethylene offer a unique feature of producing an integral or living hinge for automobiles, which can flex over a million…”
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Parallel processing of 3D rigid-viscoplastic finite element analysis using domain decomposition and modified block Jacobi preconditioning technique by Kim, S.Y., Im, Y.T.

“…In three-dimensional finite element analysis of forging processes, a large number of elements is needed for improvement in the accuracy of solutions. This…”
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Simulation of clutch-hub forging process using CAMP form by Hussain, P.B., Cheon, J.S., Kwak, D.Y., Kim, S.Y., Im, Y.T.

“…An inner gear component, clutch-hub, was chosen as the object for a numerical study investigating the usefulness and effectiveness of employing numerical…”
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Analytical model for prediction of deformed shape in three-roll rolling process by Min, J.H., Kwon, H.C., Lee, Y., Woo, J.S., Im, Y.T.

“…In process design of bar rolling, accurate prediction of deformed shape of the rolled workpiece is important in determining the total number of passes. Thus,…”
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