Development of a Forging Type Rapid Prototyping System

CAD/CAM从制造扩展到产品设计，支持试制和精确仿真。产品设计需要实物模型来评估产品形状和检查干扰。包括层创作，如立体光刻和选择性激光烧结（RS）和加工创作，如高速加工和车削通常用于产品设计。另一方面，塑性加工是一种重要的工业过程，利用材料的塑性来获得工业批量生产的指定形状。利用三维（3D） CAD的模具识别加工，快速成型主要是在3D打印机上发展起来的，它使基于CAD数据的3D模型能够快速创建。用于快速成型的3D建模不适合小批量多项目生产，导致需要无模具的塑料加工。虽然锻件和钣金成形是通过模具制造进行大规模生产的，但在CAD/CAM和/或工业机器人的支持下，越来越多的数控机床和/或工业机器人正在进步，但在大批量产品的小批量生产或试生产中，由于缺乏替代方案，锻造和金属锤击依赖于人力技能，花费了时间和金钱。研究了无模具加工工艺，并应用了FM实例。迄今为止，已有一些采用增量成形或锤击法实现自由曲面燃烧圆柱体自动化的研究报道。我们提出了用金属锤击作为快速原型的数控3D建模。为了实现传统手工金属锤击的自动化，我们提出了以下方法。首先，为了验证我们的建议的原理，我们假设了3个自由度的MOM在农业中使用姿势福特锤，结果系统可以根据CAD数据进行自动化金属锤击工作，例如形成相对简化的形状。然而，由于简化的自动化金属锤击系统只有3个D0F，无法像人类工人那样灵活地进行金属锤击工作。此外，系统没有足够的能力来满足CAD上定义的形状，以准确地形成客观形状。因此，我们尝试应用工业机器人在其他地方进行金属锤击工作，以模仿具有测距仪的人类工人，从而改善工件的尺寸和形状误差。利用测距仪设计了具有考虑刀具姿态反馈功能的ACAM，以改善角部的深度误差和形状误差。实验结果表明，该系统具有通过优化刀具姿态来减小形状误差的能力。少

CAD/CAM spread from manufacturing to product design to support trial manufactures and accurate simulation. Product design requires mock ups to evaluate product shape and check interference. With includes layer creations, e.g. stereo lithography and selective laser sintering (RS) and machining creations e.g. high-speed machining and turning often used in product design.On the other hand, plastic working is a vital industrial process using a material's plasticity to obtain a designated shape as the industrial mass production.Processing using dies discrimination of3-climensional (3D) CAD, rapid prototyping has progressed mainly in 3D printer use enabling 3D models based on CAD data to be created quidcly.3D modeling for rapid prototyping is not suitable for small-lot multiple-item production, leading to a need for plastic working without dies. While forging and sheet metal forming are processed with die manufacturing as mass production, although factory automation supported by CAD/CAM and/ … More or CNC machine tools and/or industrial robots are progressing, in small-lot production of large rumbas of items or trial production, five forging and metal hammering depend on human skill costing time and money due to lack of alternatives 'lb automate such works, processing requiring no dies is studied and applied fm practical examples. Until today, some studies on automating flaming cylindrical bodies having free-curved surfaces by incremental forming or hammering are reported.We have proposed numerically controlled 3D modeling with metal hammering used as rapid prototyping. Tb automate conventional manual metal hammering, we have proposed the approaches below. At first, to verify the principle of our proposal, we have assumed 3 degrees-of freedom MOM in farming with a posture ford hammer As the result, the system could perform an automated metal hammering working based on CAD data For example, relatively simplified shapes were formed. However, since simplified automated metal hammering system has only 3 D0F, it could not perform metal hammering working flexibly as the human workers do.Furthermore, the system did not have enough ability to form objective shape accurately pampering with the defined shape on CAD. Therefore, we attempt to apply an industrial robot to perform metal hammering working in other to imitate human worker with range finder which improves errors in dimension and shape of the workpiece. ACAM having feed-back function considering tool posture by use of range finder is developed to improve a depth error and a shape error at corner part. From the experimental result, the system is hind to have an ability to decrease the shape error by tool posture optimization. Less