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Production models and parts can be obtained with a CAD model of rapid prototyping technology. Because of the characteristics of rapid prototyping with SLS (selective laser sintering), hardness and strength of the forming parts are not very high. Usually these forming parts are used for testing new products, casting complicated shape, and making various inexpensive molds and dies. In a rapid prototyping process, building a CAD model is required. 相似文献
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李群 《鞍山师范学院学报》2014,16(4):13-15
在粉末激光烧结快速成型技术工艺中,激光功率及扫描速度对成型质量有着非常重要的影响.本文主要分析了不同激光功率及扫描速度下烧结出的金属制件,测量其体积变化,从而得出最佳的工艺参数值. 相似文献
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为了快速获得汽车油过滤器接头零件的样件，提出了基于SLS技术的快速原型制造技术，介绍了SLS技术的成型原理、成型工艺过程以及烧结汽车油过滤器接头零件时工艺参数的确定。 相似文献
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提出了基于触觉交互系统的产品造型设计综合性实验课程,内容包括对产品实物进行激光测量,通过逆向建模得到CAD模型,结合触觉交互系统进行再设计,并快速成型出新的样品.实践证明,通过该综合实验,学生了解先进的产品设计开发技术和逆向工程基本原理和关键技术的综合理解和集成运用,从而增强学生的工程实践和创新设计能力. 相似文献
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快速成型技术的应用发展中的问题 总被引：1，自引：0，他引：1
刘晓波 《合肥联合大学学报》2001,11(1):89-92
介绍了快速成型技术(RPT)在新产品开发、模具制作、医疗、艺术等方面的应用，从资源、能源消耗、环境保护和劳动保护等方面阐述了该技术为环保型技术，但该技术在发展中仍然存在一些问题．这将影响它的普及和推广。 相似文献
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Bo Yuan Sheng-yuan Zhou Xiong-sheng Chen 《Journal of Zhejiang University. Science. B》2017,18(4):303-315
Bone defects arising from a variety of reasons cannot be treated effectively without bone tissue reconstruction. Autografts and allografts have been used in clinical application for some time, but they have disadvantages. With the inherent drawback in the precision and reproducibility of conventional scaffold fabrication techniques, the results of bone surgery may not be ideal. This is despite the introduction of bone tissue engineering which provides a powerful approach for bone repair. Rapid prototyping technologies have emerged as an alternative and have been widely used in bone tissue engineering, enhancing bone tissue regeneration in terms of mechanical strength, pore geometry, and bioactive factors, and overcoming some of the disadvantages of conventional technologies. This review focuses on the basic principles and characteristics of various fabrication technologies, such as stereolithography, selective laser sintering, and fused deposition modeling, and reviews the application of rapid prototyping techniques to scaffolds for bone tissue engineering. In the near future, the use of scaffolds for bone tissue engineering prepared by rapid prototyping technology might be an effective therapeutic strategy for bone defects. 相似文献
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毛文 《中国现代教育装备》2010,(21):47-49
本文阐述了反求工程与正向工程的区别,反求工程的基本概念、常用数据采集方法,以及反求工程在快速成型技术中应用的意义。反求工程与快速成型技术的结合应用,可以快速响应市场需求的变化,为快速成型和快速模具技术的发展开辟新的领域。 相似文献
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The selective laser sintering (SLS) technique is introduced. A new type of rapid prototyping material (PCP1) has been developed, which can be used to produce precision casting mould directly and rapidly from a CAD model by the selective sintering of successive layers of PCP1 with a laser beam. In comparison with conventional manufacturing methods, prominent features of this technique include high forming rate, low development cost and good flexibility. The rapid manufacturing process of precision casting mould based on SLS is discussed. 相似文献
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Hendrik Dubbe Elena Holl Adriaan Spierings Konrad Wegener Ulrich Nieken 《浙江大学学报(A卷英文版)》2018,19(10):735-745
Examples of the use of additive manufacturing and rapid prototyping in a range of applications are of great interest in order to emphasize their role in development and production technology. In this study, a catalytic low temperature burner for H2 on a lab scale with an integrated flow distributor was designed, manufactured, and tested for functionality. Based on a theoretical approach, a flow distributor for the burner was designed and a prototype was built using fused deposition modeling (FDM). Based on test results, an optimized version of the burner was then designed and manufactured using selective laser melting (SLM). The functionality of the designed catalytic burner was proven. Several advantages were found in comparison to conventional non-catalytic burners. In particular, flameless uniform low temperature heat generation with temperatures of about 200 °C could be realized. This contribution highlights the potential of additive manufacturing in chemical engineering. Not only was the final product built using SLM, but also during the development process, FDM was used for rapid prototyping. 相似文献