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Development of Rapid Prototyping Technique for Metallic Components

金属部件快速成型技术的发展

基本信息

批准号：
17360356
负责人：
KAGAWA Akio
金额：
$ 10.16万
依托单位：
Nagasaki University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2007
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17360356/
关键词：
Rapid Prototyping Near-net shape Fused Spinning Deposition Method Aluminum Alloy Magnesium Alloy 積層造形銅合金表面性状

项目摘要

Conventional manufacturing for metal castings consists of many processes such as the preparation of sand mold, casting the melt and the shake-out of the sand mold, which needs a lot of man-power and a long production time. Therefore, a reduction in man power and production time as well as a lowering in the cost has been requiredLayered manufacturing (or solid freeform fabrication) has been investigated by many researchers to produce a prototype made of plastics for metallic mold. Recently layered manufacturing method is called as rapid prototyping technique and has attracted considerable attention as a new nearnet manufacturing technology for metallic parts. In early stage, rapid prototyping method has been applied to plastic products, which have low mechanical properties and hence a poor endurance.In our earlier works, which started 1995 at the same time the works began in USA and Germany, a fused spinning deposition method(FSD) which is one of RP technologies, has applied to the fabr … More ication of metallic parts.In the previous works, the optimum conditions to control the shape of aluminum base and copper base alloy castings produced by FSD method have been investigated for the cylindrical and rectangular shaped hollow tube and solid castings In addition, the data-base for the process parameters to control fundamental shapes has been constructed and castings having a fundamental shape of the practical metallic components, such as pyramid shape,, wine glass shape, piston shape and castings with the inside through-holes like turbine-blade have been fabricated as application by combining the fundamental shape control parameters.In the present work, in order to promote the feasibility of FSD method to various metal and alloy castings having a complex 3D shape, some modification was performed to a conventional FSD apparatus. The process parameters to obtain a double layered tube castings consisting of different inner and outer materials and a large scale casting using a multi -nozzles injection system have been examined. From the results obtained, a fundamental knowledge and know-how of apparatus components and of the shaping conditions including process parameters for the fabrication of various alloy castings has been obtained. Less

传统的金属铸件生产包括砂型准备、铸造熔体和砂型落砂等多道工序，需要大量的人力和较长的生产时间。因此，减少人力和生产时间以及降低成本已被要求分层制造（或固体自由成型制造）已被许多研究人员研究，以生产由塑料制成的金属模具原型。近年来，分层制造技术被称为快速成形技术，作为一种新的金属零件近净制造技术，受到了广泛关注。早期的快速成型技术主要应用于塑料制品，这些塑料制品的力学性能差，耐久性差。在我们的早期工作中，即与美国和德国的工作同时开始的1995年，将快速成型技术中的熔融纺丝沉积法（FSD）应用于制造塑料制品， ...更多信息在以往的工作中，我们研究了用FSD法生产的铝基和铜基合金铸件的形状控制的最佳条件，用于圆柱形和矩形空心管和实心铸件。此外，我们还建立了控制基本形状的工艺参数数据库，并生产了具有实际金属零件基本形状的铸件，为了提高FSD方法在各种复杂三维形状金属及合金铸件中的应用性，本文对传统FSD装置进行了改进。研究了采用多喷嘴喷射系统获得内外层不同材料的双层管铸件和大型铸件的工艺参数。从所获得的结果中，已经获得了用于制造各种合金铸件的设备部件和成形条件（包括工艺参数）的基本知识和技术诀窍。少