Producing extremely smooth paraboloidal surface using solidification of liquid in rigid body rotationیازدهمین کنفرانس ملی مهندسی ساخت و تولید ایران
To produce concave paraboloidal surfaces a low cost and high precession method is introduced in this paper. Specific liquid was forced to solid body rotation to produce desired concave surface in this method. Final desired shape is produced by solidification of liquid in rotational status. This method is also combined with the investment casting to obtain more accurate surface. Proposed method was studied experimentally by implementation of a laboratory setup. Surface properties of produced paraboidal shapes were investigated to compare the ordinary and combined methods. Applicable notes and results, to provide an extremely smooth and large size paraboidal surfaces, are presented<\div>
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