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复合材料部件设计制造一体化研究 总被引:1,自引:0,他引:1
20世纪80年代后期以来,随着CAD/CAM技术、计算机信息技术、网络技术的蓬勃发展,以美国为首的西方发达国家开始研究并首先应用了一项新技术即复合材料设计制造一体化技术。设计制造一体化技术可以提高产品的研制生产效率,保障产品质量,降低产品成本。选取某复合材料部件数字化设计制造的关键环节提出研究内容,应用复合材料制造和分析软件FiberSIM对演示验证件进行数字化制造,克服相关技术难点,打通了复合材料由设计到制造的生产流程。最终通过演示验证件的数字化设计流程分析复合材料数字化制造与传统的复合材料生产过程的差异,客观评价两种制造方案的优缺点。 相似文献
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分析了网络化制造环境下的注塑模计算机辅助设计/计算机辅助工程(CAD/CAE)协同工作流程,结合网络化制造和注塑成型模拟系统的特点和发展方向,提出了面向网络化制造的解决方案。为实现CAD和CAE的协同工作,开发了基于协同工作流管理的网络服务系统,实现了CAD/CAE数据传输、工艺参数配置以及分析结果显示的系统集成。系统门户网站的设计遵循了注塑成型模拟的业务流程,在应用服务器设计上采用了基于AOP(面向方面编程)技术的解决方案,提出采用更加标准化、更开放的网络信息集成平台方案,以期推动模具企业数字化制造技术在网络环境下的应用和发展。 相似文献
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随着三维CAD技术应用的不断深入,表明了在参数化CAD技术基础上对三维CAD技术的新需求,以适应企业产品创新设计的新需要.结合ThinkDesign软件技术应用实例,阐明CAD技术对企业开展创新设计的帮助,得出了参数化CAD技术将向创新协同CAD技术的方向延伸。 相似文献
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辛振祥 《中国轮胎资源综合利用》2012,(8):25-27
随着计算机硬件和软件的飞速发展,使计算机辅助设计(computer aided design,CAD)和科学计算(scientific computation)已经应用到各个学科领域,并起着日益重要的作用。计算机辅助设计在无纸化设计和数字化加工制造中首当其冲,国内外都十分重视CAD在各个行业的应用。在轮胎设计中如何寻求快速、高效、准确的结构设计和信息化管理,是轮胎行业的新目标。CAD已经广泛应用于轮胎设计中,从结构设计到施工设计,以及轮胎模具的设计,并不断发挥其重要的作用。 相似文献
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《玻璃钢/复合材料》2014,(1)
正近年来,多个航天新型号采用全三维数字化设计技术进行结构设计,对制造部门提出更高要求。为此,703所积极探索复合材料三维数字化制造模式,不但突破了传统复合材料制造技术瓶颈,打通了从三维设计模型到生产现场可视化应用的数字化制造链路,而且在保证产品质量、降低研制成本、缩短研制周期等方面获得了显著的应用效果。该所已应用复合材料三维数字化制造技术成功研制并交付了包括长征七号在内的多个型号结构复合材料部段。 相似文献
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基于CAD/CAE/CAM/RP的复杂陶瓷产品快速制造技术 总被引:5,自引:2,他引:5
针对目前手工方式的卫生洁具等复杂陶瓷产品的研发过程,借鉴CAD/CAE/CAM/RP技术在其它制造行业中应用的成功经验,将这些先进制造技术应用于卫生洁具等复杂陶瓷产品的研发中;CAD用于设计产品和模具的模型,CAE用于模拟洁具冲水过程和分析冲水性能,RP用于制作洁具产品的原型,CAM用于加工试用石膏工作模具。就这些技术的应用提出了两种主要方案,并分析了各自的特点。经过实际应用表明:先进制造技术的应用能大大缩短产品研发周期、提高产品质量、降低开发成本。 相似文献
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科学技术的发展,以数字化建模、数字化协同制造、产品信息交互传播技术为代表的新型数字技术,对于传统陶瓷产业的产生了全方位、全角度、全链条的影响。基于此,本文在分析数字技术在陶瓷产品设计、制造与传播中应用优势的基础上,探索数字技术在陶瓷产品设计、制造与传播的应用策略,旨在借助数字技术促进陶瓷产业的改革和创新发展。 相似文献
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介绍了基于CAXA系列CAD/CAM软件的陶瓷产品设计及模具加工技术的一般过程和方法,并简要阐述了陶瓷产品设计及模具加工采用CAD/CAM技术的现实意义.以期待推动陶瓷行业采用CAD/CAM技术起到抛砖引玉的作用。 相似文献
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NURBS功能可帮助在计算机中表达设计思维与创意,实现陶瓷的三维造型。本文主要在探讨NURBS曲面造型方法的基础上,研究如何通过计算机对陶瓷的造型进行辅助设计,同时对陶瓷造型中的曲面形态加以关注,以实际应用案例作为参照和类比。 相似文献
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Beyza Unalan Degirmenci Alperen Degirmenci Beyza Karadag Naldemir 《International Journal of Applied Ceramic Technology》2022,19(3):1594-1604
The aim of this study is to examine the repair bond strength of three different 5-year water-aged and non-aged computer-aided design/computer-aided manufacturing (CAD/CAM) ceramics (leucite-reinforced, lithium disilicate, and feldspathic ceramic) on which four different surface treatments (bur-grinding, sandblasting, acid-etching, and laser irradiation) have been applied with composite resin. Note that 360 ea. samples have been attained from CAD/CAM blocks. Each CAD/CAM ceramic has been randomly separated into two sub-groups depending on aging procedure. The designed 5-year water-aged and non-aged samples have been separated into four sub-groups. Ceramic surfaces were repaired then the samples have been placed into shear test device. Three-way variance analysis has been used in the comparison of the repair bond strengths depending on the ceramic type, surface treatment, and aging. Results have revealed that the repair bond strength values show differences depending on CAD/CAM ceramic type, surface treatment, and the aging of the surface (p < .001). While the aged and laser-irradiated feldspathic CAD/CAM ceramics showing the highest shear bond strength, the lowest shear bond strength values were in aged and bur-grinded feldspathic CAD/CAM ceramics. Irradiation with erbium chromium: yttrium scandium gallium garnet (Er,Cr:YSGG) laser has significantly increased the repair bond strength in leucite-reinforced and feldspathic CAD/CAM ceramics, acid-etching is suggested surface treatment for the lithium disilicate CAD/CAM ceramics. 相似文献
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随着电脑技术的发展,陶瓷设计这一学科,也逐渐在电脑技术发展中得到新的充实。特别是在日用陶瓷的设计中。电脑设计在吸收传统陶瓷设计的基础上,结合了电脑本身的随机性特点,丰富了陶瓷设计的造型;同时,精确的计算与定位,各种渲染效果的增加,将精确性与唯美性赋予陶瓷造型新的活力。 相似文献
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快速成形与CAD/CAM系统的集成应用于模具制造中,改变了传统的模具设计方法,大大缩短了模具开发周期,显著提高了产品的质量。本文介绍了快速成形技术及其与CAD/CAM系统的集成方法,并通过实例进行论证说明。 相似文献
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《Ceramics International》2019,45(15):18814-18822
Zirconia ceramic is a widely used material for dental restoration. Stabilized zirconia all-ceramic teeth have excellent mechanical properties, biocompatibility, and aesthetic properties. At present, the CAD/CAM technique for zirconia all-ceramic dental prosthesis leads to low material efficiency and high tool wear. Although restorations fabricated using additive manufacturing are gaining attention, it is still very challenging to obtain accurate shapes and proper mechanical properties in zirconia restorations. In this investigation, a type of three-part auxiliary support was adopted and added to the occlusal surface to fabricate a typical molar crown bridge. A ceramic solid content of 40 vol% acrylic-based slurry was prepared, and a molar crown bridge was fabricated using mask projection stereolithography. The experimental results showed that the average dimensional error of the printed green body was ±150 μm. The density of the sintered ceramic parts was 6.026 g/cm3, and the three-point bending strength was 541 ± 160 MPa, which is higher than that of human dentin (160 MPa), but lower than that of CAD/CAM zirconia (900–1200 MPa). Although the proposed process still needs to be optimized to improve the mechanical properties and reliability of the crown bridge, the mask projection process combined with the adopted three-part auxiliary supports are capable of individualized manufacturing of complex zirconia crown bridges. 相似文献
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Soner Sismanoglu Aliye Tugce Gurcan Zuhal Yildirim-Bilmez Burak Gumustas 《International Journal of Applied Ceramic Technology》2021,18(2):312-318
Information on the mechanical properties and repairability of computer-aided design/computer-aided manufacturing (CAD/CAM) blocks is scarce. Five CAD/CAM blocks with similar indications were evaluated, including four resin nanoceramics, one polymer-infiltrated ceramic network (PICN), and one feldspathic ceramic. CAD/CAM blocks were sectioned into 4 mm × 1.2 mm × 13 mm bars for flexural strength (FS), and 4 mm thick blocks were prepared for elastic modulus (EM), nanohardness (NH), and microshear bond strength (µSBS) testing. FS of the CAD/CAM blocks was determined using a three-point bending test, whereas EM and NH values were measured using a nanoindenter. The reparability of the tested block materials was determined by the µSBS test. One-way ANOVA was conducted for FS, EM, NH, and µSBS followed by Tukey's pairwise comparison (α < 0.05). FS ranged from 115 to 207 MPa, EM from 8.21 to 44 GPa, NH from 0.76 to 7.24, and µSBS from 24.9 to 30.6 MPa. The findings of the present study revealed that resin nanoceramic blocks exhibited higher FS values than PICN and feldspathic ceramic, and they have acceptable mechanical properties for the fabrication of single-unit restorations according to the ISO 6872:2008. Furthermore, all CAD/CAM blocks tested can be successfully repaired regarding their recommended repair protocol. 相似文献