High quality semi-solid forming structure

Abstract

The invention discloses a high quality semi-solid forming structure. The structure comprises a lower die and an upper die that are arranged correspondingly, wherein the lower die comprises a lower diecavity, the lower die cavity comprises several fine angle plate corresponding cavities, the bottoms of the fine angle plate corresponding cavities are provided with centre holes A with the size greater than a center, and the centre holes A form auxiliary overflow during semi-solid forming to ensure the fine angle plate corresponding cavities completely fill the structure; the lower die cavity also comprises product sphere cavities, the product sphere cavities are correspondingly provided with several centre holes B with the size greater than the center, and the centre holes B form auxiliary overflow during semi-solid forming to ensure the product sphere cavities completely fill the structure.

Description

technical field [0001] The invention relates to forming technology, in particular to the preparation of auto parts, in particular, it exhibits a high-quality semi-solid forming structure. Background technique [0002] Die-casting, referred to as die-casting, is a precision forming technology for metal parts close to the final shape and size, and the final product is die-casting. Its essence is that under the action of high pressure, the liquid metal is filled into the mold cavity at high speed, and is formed and solidified under the action of pressure, so as to obtain die-casting parts with clear outline and smooth surface. In the non-ferrous metal casting industry, die casting is an important casting method. In recent years, light alloys dominated by magnesium and aluminum have occupied an important position in the die-casting industry. Aluminum alloy castings obtained through die-casting account for about 60% of the total lead alloy castings. [0003] Semi-solid die-cast...

AI Technical Summary

Problems solved by technology

[0003] Semi-solid die-casting is a new type of die-casting method. It fills the mold cavity with semi-solid liquid metal. However, high viscosity and difficult flow are one of the characteristics of semi-solid liquid metal. The current semi-solid die-casting method uses conventional mold structure to exist liquid state. The metal cannot be filled perfectly. The product size is small and far away from the sprue mouth, resulting in low product quality.

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