直接利用激光快速成型的原型树脂模，结合陶瓷型精密铸造技术，制得了高精度、低表面粗糙度、高使用寿命的钢模具。
The steel dies with high dimensional accuracy, low surface roughness and long service life have been quickly produced by using prototyping resin molds as patterns of ceramic investment casting.
该陶瓷型用于制作金属工艺品，尺寸精度和表面粗糙度均达到技术要求。
Both dimensional accuracy and surface roughness of the metal handicraft in ceramic mold meet technological requirement.
挤压速度、挤压毛坯的温度、型腔温度、模具的表面粗糙度以及挤压毛坯的化学成分是影响热挤压件表面质量的主要因素。
Extruding velocity, temperature of billet and container, die roughness and the chemical composition of the billet are the major factors which affect the surface quality of the extruded product.
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