本文介绍了冲击印刷的概念,一种新的增材制造(AM)方法,通过机器人射击过程聚合可延展的离散元素(或软颗粒)。软颗粒之间的结合源于动能的转换,在加速阶段获得的,在撞击时变成塑性变形。因此,在软颗粒之间不需要额外的粘合材料;材料本身的内聚力和自互锁能力充当主要粘合剂。射击,以及随之而来的影响,力可以调制,并导致不同的压实比。通过线性拍摄材料,我们将沉积设备与所生产的部件分离,并为沉积过程提供灵活性,以潜在地在任何方向上或在不受控制的表面上构建。ImpactPrinting生产的零件具有正式特征,介于砖铺设-离散积木的组装-和3D打印-计算机控制的材料的放置或固化之间。提出了一种新颖的数字制造方法,并替代了传统的连续AM工艺。本文通过一系列原型实验验证了ImpactPrinting方法,使用由安装有材料拍摄设备的六轴机械臂组成的机器人制造装置进行,这种形式,东方,并投射出柔软的颗粒。我们将解释和演示其原理,并定义制造参数,比如射击力,拍摄距离,和生成的聚合\'特征。
This article introduces the concept of Impact Printing, a new additive manufacturing (AM) method that aggregates malleable discrete elements (or soft particles) by a robotic shooting process. The bonding between the soft particles stems from the transformation of kinetic energy, gained during the acceleration phase, into plastic deformation upon impact. Hence, no additional binding material is needed between the soft particles; the cohesion and self-interlocking capacities of the material itself acts as the primary binding agent. Shooting, and consequent impacting, forces can be modulated and result in distinct compaction ratios. By linearly shooting material, we decouple the deposition apparatus from the produced parts and provide flexibility to the deposition process to potentially build in any directions or onto uncontrolled surfaces. Impact Printing produces parts with formal characteristics standing between brick laying-assembly of discrete building blocks-and 3D Printing-computer-controlled depositioning or solidifying of material. It brings forward a novel digital fabrication method and an alternative to the conventional continuous AM process. This article validates the Impact Printing approach with a series of prototypical experiments, conducted with a robotic fabrication setup consisting of a six-axis robotic arm mounted with a material shooting apparatus, that forms, orients, and projects the soft particles. We will explain and demonstrate its principles and define the fabrication parameters, such as shooting force, shooting distance, and the resulting aggregations\' characteristics.