研究结果表明，锻材断口呈石状、显微组织枝晶特粗大的原因主要是由于锻造加热工艺控制不当造成。

The result shows that due to the reason of unsuitable control of the forging process, the forging fracture is in stone shape and the microstructure is extremely rough.

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介绍了铝合金支撑体的锻模设计、锻造加热工艺和锻后热处理等技术；指出了设计过程中应该注意的问题和具体预防措施。

This article introduced the technology of aluminum alloy forging die design and heating technology as well as the heat treatment after forging.

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