2004 / DB reference year
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Author Lee, S.H.; Ahn, D.G.; Yang, D.Y. ; Department of Mechanical Engineering, College of Engineering, Chosun University, 501-759 Gwang-ju, South Korea
Source Int J Adv Manuf Technol v 22 Issue:n 3-4 2003 p 175-183
Abstract Most rapid prototyping (RP) processes adopt a solid CAD model sliced into thin layers of constant thickness in the building direction. Each cross-sectional layer is successively deposited and, simultaneously, bonded onto the previous layer; eventually the stacked layers form a physical part of the model. A new RP process called the Transfer-type Variable Lamination Manufacturing process using expandable polystyrene foam sheet (VLM-ST) has been developed to reduce building time and to improve the surface finish of parts with thick layers and sloping surfaces. The objective of this study is to develop a method for calculating the rotation angles ( &theta sub x, &theta sub y) of a linear hotwire cutter in the three-dimensional space for the VLM-ST process using inverse kinematics. The method for calculating the rotation angles (&theta sub x, &theta sub y) of the four-axis hotwire cutter to VLM-ST was applied and verified for a variety of free surface bodies. [References: 14] (Auth abstract) XX