Rolling compaction near-forming sand mold manufacturing method

Abstract

The invention belongs to the crossing field of casting and rapid forming, and discloses a rolling compaction near-forming sand mold manufacturing method. According to the method, in the forming process of the resin sand mold for casting, the detachable module carries out approaching to the mold cavity and layer-by-layer sand adding and layer-by-layer rolling, an approximately-formed sand mold or pattern with a higher approximate contour can be obtained, the size of the approximately-formed sand mold is reduced, and therefore sand for casting is saved, and the follow-up cutting net forming time is shortened. The method is not limited by the size of a casting, and rapid near-forming manufacturing of a large-size sand mold can be achieved. According to the method, a detachable module forming mode and a layer-by-layer rolling forming mode of a rolling roller on a sand mold are adopted, so that the equipment investment cost, the raw material cost, the use cost and the like are greatly reduced.

Description

Technical field [0001] The invention belongs to the foundation of the casting and rapid shaping, and is specifically involved in a rolling tight proximal shaped sand type manufacturing method. Background technique [0002] Casting is a basic metal hot processing forming process, sand-type casting is the earliest application, the most mature casting process is widely used. Traditional molded molded casting process has long, high cost, low precision, material waste, difficult to meet the continuous development needs of the foundry industry. With the continuous improvement of technology, new sand-type rapid manufacturing techniques are developed, such as laser-based selection, sintering forming techniques (SLS), microphena-based sand / sand core additive manufacturing technology (3DP) and extrusion Cut integrated die-casting composite forming technique. The application of new technologies realizes the digital, composite, intelligent, and meets the development of new products, develo...

AI Technical Summary

Problems solved by technology

[0003] The new technology has its own shortcomings and limitations: high equipment purchase costs, maintenance costs, maintenance costs, strict raw material selection, and use environment, and it is impossible to achieve rapid manufacturing of large-scale casting sand molds

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