Abstract With the piston action of unmelted wire , for some Fused Deposition Modeling (FDM) the melted polymer is extruded by the driving force from feeding polymer wire.

• 摘要 借助未熔丝材的活塞作用，部分熔融沉积造型 (FDM )技术靠料丝插入的驱动力将熔融材料挤出。