Optimization Algorithm Research of Near-net Forming Sand Mold with Digital Flexible Extrusion Technology

doi:10.3901/JME.2016.13.149

Abstract

Abstract:

Based on the technology of digital precision forming machine without pattern casting, digital extrusion method of sand mold is proposed to get near-net forming sand mold innovatively. Optimization algorithm of sand mold forming with digital flexible extrusion technology is studied. The maximum volume formula, with sand mold cavity attitude and position as variables, enveloped by extruding units envelope surface, V(α, X, Y)_max is established as objective function. And, the restrictions are analyzed. Optimized results of sand mold formed by digital extrusion technology are obtained by numerical iteration method. Extruded sand mold, formed close to the target one, is got by digital flexible extrusion technology with the optimization algorithm. And, near-net forming sand mold with digital flexible extrusion technology are achieved.

Key words: digital flexible extrusion technology, near-net forming, optimization algorithm, sand mold, non-mold casting technology

SHAN Zhongde, ZHANG Shuai, GU Zhaoxian. Optimization Algorithm Research of Near-net Forming Sand Mold with Digital Flexible Extrusion Technology[J]. Journal of Mechanical Engineering, 2016, 52(13): 149-155.

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Optimization Algorithm Research of Near-net Forming Sand Mold with Digital Flexible Extrusion Technology

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