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The central solenoid (CS) magnet system of the KSTAR consists of four pairs of superconducting coils which are stacked with up-down symmetry and supporting structures which can give pre-compression in a vertical direction on the coil stack to sustain the contact between coils. The CS system of the KSTAR was mechanically preloaded with about 7.3 MN at room temperature by preloading structure in order...
Palladium coated Copper (PCC) bonding wire is a popular low cost alternative for Gold wire. The quality of an innovative Pd coating technique on Cu (Direct PCC) wire is evaluated by comparing free air ball (FAB) deformability and stitch bond strength to those of Cu wire. The coating is applied to commercial Cu wire which is either thermally treated or as-delivered. FABs of 40 μm diameter are produced...
The effects of annealing and gamma irradiation on the magnetic properties of amorphous alloys have been investigated by means of the changes of the permeability spectra. In general, there are no differences in the magnitude and shape of the real part of the permeability curves between as-quenched amorphous and gamma-irradiated samples. However, a...
A method for predicting dynamic stability limit of thin-walled workpiece high-speed milling process is described. The proposed approach takes into account the variations of dynamic characteristics of workpiece with the tool position (or machining time). A dedicated thin-walled workpiece representative of a typical industrial application is designed and modeled by finite element method. The curvilinear...
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