针对选区激光烧结(SLS)成型件经常出现的密度不足问题，结合试验，分析了试件摆放位置对烧结密度的影响。

For the problem of inferior density of SLS (selective laser sintering) part, the paper analyzes influence of locating place on sintered density of SLS part based on experimental results.

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针对数值分析后的模型，采用激光选区烧结法快速制作零件及凹模的实体原型。

The rapid prototypes of the part and its die were fabricated by selective laser sintering (SLS), a rapid prototyping technique.

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