Development of a Forging Type Rapid Prototyping System

CAD/CAM从制造扩展到产品设计，以支持试制和精确模拟。产品设计需要实物模型来评估产品形状并检查干涉。包括立体光刻和选择性激光烧结（RS）等层的创造，以及产品设计中经常使用的高速加工和车削等加工创造。另一方面，塑性加工是利用材料的塑性来获得工业大规模生产中指定形状的重要工业过程。三维（3D）CAD中使用模具判别的加工快速原型制造主要在3D打印机使用方面取得了进展，使得能够快速地创建基于CAD数据的3D模型。用于快速原型制造的3D建模不适合于小批量多件生产，导致需要无模具的塑性加工。锻造和钣金成形虽然以模具制造作为批量生产，但工厂自动化以CAD/CAM和/ ...更多信息 或CNC机床和/或工业机器人正在进步，在大批量生产或试生产中，由于缺乏替代品，锻造和金属锤击依赖于人工技能，花费时间和金钱，因此可以使这些工作自动化，研究不需要模具的加工并应用于实际例子。迄今为止，已有一些关于用增量成形或锤击法自动制造自由曲面火焰筒体的研究报道，我们提出了用金属锤击法进行数控三维建模的快速成型方法。为了使传统的手工金属锤击自动化，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自由度的耕作与姿态福特锤作为结果，该系统可以执行自动金属锤击加工基于CAD数据，例如，形成相对简化的形状。然而，由于简化的自动金属锤击系统只有3个自由度，不能像人工那样灵活地进行金属锤击作业，而且该系统也没有足够的能力精确地形成目标形状，无法满足CAD上定义的形状。因此，我们尝试应用工业机器人来执行金属锤击工作，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的误差。为了改善角部的深度误差和形状误差，开发了利用测距仪考虑刀具姿态的具有反馈功能的ACAM。从实验结果来看，该系统具有通过刀具姿态优化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