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| 1 | Rapid Prototyping and Manufacturing Technology:Principle, Representative Technics, Applications, and Development Trends显示文摘The rapid prototyping and manufacturing technology (RPM), is an integration of many different disciplines. It is based on an advanced dispersed-accumulated forming principle and originated from 1980s. It generates an entity by first forming a series of layers according to the dispersed section information of the digital model, and then piling the formed layers sequentially together. It is capable of forming parts with complicated structures and non-homogeneous materials. Traditional RPM techniques are mainly used as prototypes in product invention process, such as stereolithography, three-dimensional printing, laminated object manufacturing, and fused deposition modeling. Later, with the progress of material and enabling technology, many new RPM techniques emerged out and have been already applied in the fields such as rapid tooling/moulding, direct formed usable part, nano-/micro-RPM, and biomanufacturing. This high flexible digital manufacturing method has a likely ability to become an almighty forming technology. | 颜永年 李生杰 张人佶 林峰 吴任东 卢清萍 熊卓 王小红 | 2009 | Tsinghua Science and Technology2009，14，S1： | 17 |
| 2 | Development of a welding system for 3D steel rapid prototyping process显示文摘Metal device rapid prototyping with welding is one of the research interests at present. A controlled inertial droplet transfer MAG welding (CIDTMAGW) process was developed for the 3D steel device rapid prototyping with metal deposition. In this process, by using a special designed wire feeder, a controlled inertia is imposed on the droplet formed on the wire tip and combines with the arc force to make it detached. Thus, according to the requirements of rapid prototyping, the arc heat and the droplet detaching force can be separately controlled to attain a stable and satisfactory metal deposition process. A CIDTMAGW system and a testing manipulator for the 3D steel device rapid prototyping are presented. The required software is completed as well. The experiments proved that the geometric formation of the rapid prototyping device with welding deposition is well agreed the data of the device CAD modeling. The surface of the deposited device is comparatively smooth. | 杨世彦 韩明武 王其隆 | 2001 | China Welding2001，10，1： | 14 |
| 3 | Investigating on casting mold (or core) making with coated sand by the selected laser sintering显示文摘1 .Introduction Based on the parameters and cross-section’s information from a CAD model, the selected laser sintering (SLS) uses a laser beam to sinter selectively powdered solid materials (plastic, wax, ceramic, metal, etc.), and the solidified material is built up layer by layer to formthepart needed} As there are still some problems in material and technology, it is difficulty to sinter or produce | ~*Zitian FAN, Naiyu HUANG, Yan LI, Zhili LIU(State Key Laboratory of Plastic Simulation and Die & Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, P. R. China) | 2004 | China Foundry2004，1，2： | 6 |
| 4 | Polyelectrolyte gelatin-chitosan hydrogel optimized for 3D bioprinting in skin tissue engineering显示文摘Bioprinting is a promising automated platform that enables the simultaneous deposition of multiple types of cells and biomaterials to fabricate complex three-dimensional(3D)tissue constructs.Collagen-based biomaterial used in most of the previous works on skin bioprinting has poor printability and long crosslinking time.This posed an immense challenge to create 3D constructs with pre-determined shape and configuration at high throughput.Recently,the use of chitosan for wound healing applications has attracted huge attention due to its attractive traits such as its antimicrobial properties and ability to trigger hemostasis.In this paper,we optimized polyelectrolyte gelatin-chitosan hydrogel for 3D bioprinting.Modification to the chitosan was carried out via the oppositely charged functional groups from chitosan and gelatin at a specific pH of^pH 6.5 to form polyelectrolyte complexes.The polyelectrolyte hydrogels were evaluated in terms of physical interactions within polymer blend,rheological properties(viscosities,storage and loss modulus),printing resolution at varying pressures and feed rates and biocompatibility.The polyelectrolyte gelatin-chitosan hydrogels formulated in this work was optimized for 3D bioprinting at room temperature to achieve high shape fidelity of the printed 3D constructs and good biocompatibility with fibroblast skin cells. | Wei Long Ng Wai Yee Yeong May Win Naing | 2016 | International Journal of Bioprinting2016，2，1： | 4 |
| 5 | Slicing 3D CAD Model Directly with ObjectARX显示文摘An algorithm for compensating the varying section contour within the extent of each layer thickness is proposed to improve the rapid prototyping part’s shape and size precision. | WANG Wei-chen1, 2, ZHU Zhen-cai1, FANG Liang1, WANG Fan-sheng1, 2 (1. College of Mechatronic Engineering, China University of Mining & Technology, Xuzhou 221116, China 2. College of Mechatronic Engineering, Xuzhou Normal University, Xuzhou 221116, China) | 2008 | Computer Aided Drafting,Design and Manufacturing2008，18，2： | 4 |
| 6 | 快速成型结合3D打印技术在颅颌面畸形整形修复中的应用显示文摘因先天畸形、外伤、肿瘤切除以及炎性反应等因素所导致的颅颌面畸形,均可导致颜面部功能障碍和畸形,需要通过不同手段恢复其外形、功能,及时正确的个性化修复对于功能恢复、容貌改善、生活质量的提高具有重要的社会意义。众所周知,由于颅颌面解剖结构复杂、骨骼形状不规则、功能特殊的关系,仅通过CT、MRI等影像学检查确定复杂的颅颌面畸形病变性质、范围具有一定的局限性。 | 何颜秋 陈华 | 2015 | 中国美容医学2015，24，13： | 3 |
| 7 | Design and Implementation of a TDD-Based 128-Antenna Massive MIMO Prototype System显示文摘Owing to the dramatic mobile IP growth,the emerging Internet of Things,and cloud-based applications,wireless networking is witnessing a paradigm shift.By fully exploiting spatial degrees of freedom,massive multiple-input-multiple-output(MIMO) systems promise significant gains in data rates and link reliability.Although the research community has recognized the theoretical benefits of these systems,building the hardware of such complex systems is a challenge in practice.This paper presents a time division duplex(TDD)-based 128-antenna massive MIMO prototype system from theory to reality.First,an analytical signal model is provided to facilitate the setup of a feasible massive MIMO prototype system.Second,a link-level simulation consistent with practical TDDbased massive MIMO systems is conducted to guide and validate the massive MIMO system design.We design and implement the TDDbased 128-antenna massive MIMO prototype system with the guidelines obtained from the link-level simulation.Uplink real-time video transmission and downlink data transmission under the configuration of multiple single-antenna users are achieved.Comparisons withstate-of-the-art prototypes demonstrate the advantages of the proposed system in terms of antenna number,bandwidth,latency,and throughput.The proposed system is also equipped with scalability,which makes the system applicable to a wide range of massive scenarios. | Xi Yang Wenjun Lu Ning Wang Karl Nieman Chao-Kai Wen Chuan Zhang Shi Jin Xiaomin Mu Ian Wong Yongming Huang Xiaohu You | 2017 | China Communications2017，14，12： | 3 |
| 8 | Accuracy analysis of the part made by selected laser sintering显示文摘The effects of different factors, including the precision of selected laser sintering (SLS) equipment, sintering temperature, sintered thickness of individual layer and laser scanning route, on the SLS part accuracy have been analyzed and studied. Some measures are suggested in order to improve the part accuracy made by SLS. | Zitian FAN Naiyu HUANG Yuejia XIAO Ming HAN | 2004 | China Foundry2004，1，1： | 3 |
| 9 | Jet electrodeposition oriented by rapid prototyping显示文摘The system components and the theory of jet electrodeposition orientated by rapid prototyping (RP) were introduced. The nanocrystalline copper parts with simple shape were fabricated by this rapid prototyping technology. The microstructure evolution of the nanocrystalline copper layer was examined by means of the scanning electron microscopy and X-ray diffraction. The results show that the jet electrodeposition can greatly enhance the limited current density, fine crystalline particles and improve deposition quality. The copper deposited layers have nanocrystalline microstructure with average size of 55.6nm. The grain size decreases to 41.4nm on crystal plane (311). | 陈劲松 黄因慧 刘志东 田宗军 赵阳培 | 2005 | 中国有色金属学会会刊:英文版2005，15，S3： | 2 |
| 10 | 浅谈虚拟样机技术在机械设计中的应用显示文摘虚拟样机(virtual prototyping)技术是在产品设计开发过程中,把虚拟建模技术(CAD)与分析技术(CAE)相结合。 | 赵传贝 | 2010 | 职业2010，，9Z： | 2 |
| 11 | The arrival of commercial bioprinters-Towards 3D bioprinting revolution!显示文摘The dawn of commercial bioprinting is rapidly advancing the tissue engineering field.In the past few years,new bioprinting approaches as well as novel bioinks formulations have emerged,enabling biological research groups to demonstrate the use of such technology to fabricate functional and relevant tissue models.In recent years,several companies have launched bioprinters pushing for early adoption and democratisation of bioprinting.This article reviews the progress in commercial bioprinting since the inception,with a particular focus on the comparison of different available printing technologies and important features of the individual technologies as well as various existing applications.Various challenges and potential design considerations for next generations of bioprinters are also discussed. | Deepak Choudhury Shivesh Anand May Win Naing | 2018 | International Journal of Bioprinting2018，4，2： | 2 |
| 12 | A perspective on 4D bioprinting显示文摘3D bioprinting has been invented for more than a decade.A disruptive progress is still lacking for the field to significantly move forward.Recently,the invention of 4D printing technology may point a way and hence the birth of 4D bioprinting.However,4D bioprinting is not well defined and appear to have a few distinct early forms.In this article,a personal perspective on the early forms of 4D bioprinting is presented and a definition for 4D bioprinting is proposed. | Jia An Chee Kai Chua Vladimir Mironov | 2016 | International Journal of Bioprinting2016，2，1： | 2 |
| 13 | Perusing Piezoelectric Head Performance in a New 3-D Printing Design显示文摘Rapid prototyping (RP) is a computerized fabrication technology that additively builds highly complex three-dimensional physical objects layer by layer using data generated by computer, for example CAD or digital graphic. Three-dimensional printing (3DP) is one of such technologies that employ ink-jet printing technology for processing powder materials. During fabrication, a printer head is used to print a liquid on to thin layers of powder following the object's profile as generated by the system computer. This work looks at redesigning 3DP machine, using piezoelectric demand-mode technology head in order to improve accuracy, surface finishing and color quality of constructed models. The layers created with aforesaid system are between 25 to 150 μm (steps of 25 μm). | RAHMATI Sadegh SHIRAZI Farid BAGHAYERI Hesam | 2009 | Tsinghua Science and Technology2009，14，S1： | 2 |
| 14 | Simulation and Optimization of Amplitude-adjusting Performance of Crane with Virtual Prototyping Technology显示文摘In the design of crane,designers often have to study the trajectory of amplitude-adjusting of crane.The tradition- al methods,illustration and analytics both show their limits.In this paper,the simulation of process of amplitude-adjusting is presented and the optimization is also performed with virtual prototyping technology.From the comparison of original solution and optimal solution,the effectiveness of this technique is testified.On the platform ADAMS/View,the interactive optimization can be performed in a visual,intuitive and credible way,which deserves to be introduced to the design of crane. | WU Zhen~1 YU Meng~2 DENG Mingxing~1 (1.Power & Mechanical School,Wuhan University,Wuhan 430072,China, 2.School of Legistics Engineering,Wuhan University of Technolegy,Wuhan 430063,China) | 2006 | 武汉理工大学学报2006，28，S3： | 2 |
| 15 | Computing the Intersection of a Plane and Geometric Primitives in VRML Model for Rapid Prototyping Software显示文摘VRML(Virtual Reality Modeling Language)format as an international standard for virtual reality,has al- ready been widely adopted for graphical representation of 3D objects over the Web.Adopting VRML model in RP(Rapid Prototyp- ing)can reduce the precision loss which is caused by triangulation in generating STL file.Hence exploring a slicing method and de- veloping a slicing software for VRML model is important and significant to improve the accuracy of RP products.Finding inter- sections of a plane and VRML model is the key operation in slicing algorithm.This paper presents a method for calculating the in- tersections between a set of parallel planes and VRML geometric primitives.Based on the analysis of the relative position between a plane and a geometric primitive,intersection conditions in all cases were obtained,and the geometric parameters and corresponding equations of intersections were derived.The algorithm had been tested,and applications show that it is robust and effective. | LI Zhanli SUN Xiuying Department of Computer Science & Technology,Xi’an University of Science and Technology,Xi’an 710054,China, | 2006 | 武汉理工大学学报2006，28，S3： | 2 |
| 16 | 汽车运动过程中的受力分析显示文摘汽车运动过程中的受力分析李效民,李中强汽车同货物的质量为M,在直线轨道上行驶。设轮胎与地面之间的摩擦系数为μ,重心高度为h,前后轮与过重心C的垂线之间的距离分别为L1和L2。空气阻力不计,试对汽车①以加速度a行驶,②因突然情况而紧急刹车和③路面倾斜时... | 李效民 李中强 | 1994 | 河南广播电视大学学报1994，9，Z1： | 1 |
| 17 | Retracted Article:Application of 3D printing technology in orthopedic medical implant-Spinal surgery as an example显示文摘Additive manufacturing has been used in complex spinal surgical planning since the 1990s and is now increasingly utilized to produce surgical guides,templates,and more recently customized implants.Surgeons report beneficial impacts using additively manufactured biomodels as pre-operative planning aids as it generally provides a better representation of the patient’s anatomy than on-screen viewing of computed tomography(CT)or magnetic resonance imaging(MRI).Furthermore,it has proven to be very beneficial in surgical training and in explaining complex deformity and surgical plans to patients/parents.This paper reviews the historical perspective,current use,and future directions in using additive manufacturing in complex spinal surgery cases.This review reflects the authors’opinion of where the field is moving in light of the current literature.Despite the reported benefits of additive manufacturing for surgical planning in recent years,it remains a high niche market.This review raises the question as to why the use of this technology has not progressed more rapidly despite the reported advantages–decreased operating time,decreased radiation exposure to patients intraoperatively,improved overall surgical outcomes,pre-operative implant selection,as well as being an excellent communication aid for all medical and surgical team members.Increasingly,the greatest benefits of additive manufacturing technology in spinal surgery are customdesigned drill guides,templates for pedicle screw placement,and customized patient-specific implants.In view of these applications,additive manufacturing technology could potentially revolutionize health care in the near future. | Rong Feng Zhang Peng Yun Wang Ming Yang Xuebo Dong Xue Liu Yiguang Sang An Tong | 2019 | International Journal of Bioprinting2019，5，2： | 1 |
| 18 | Design and Manufacture of a Wax Injection Tool for Investment Casting Using Rapid Tooling显示文摘A rapid wax injection tool of a gearbox shift fork was designed, simulated, and manufactured using rapid prototyping and rapid tooling technology to save time and cost of producing wax models used for the investment casting process. CAE simulation softwares, in particular, MoldFlow, are used to get wax injection moulding parameters such as filling parameters, temperature profiles, freeze time, speed, and pressure. The results of this research were compared with conventional wax model production methods. The criteria of such comparison were based upon parameters such as time, cost, and other related characteristics, which resulted in saving of 50% in time and 60% in cost. In this research, design, assembly, and wax injection operation of the wax tool took 10 days. Considering the fact that wax melting temperature is as low as 70℃ and injection pressure of 0.5 MPa, the tool suffers no damage due to the thermal and pressure stresses, leading to the mass production of wax models. | RAHMATI Sadegh REZAEI Mohamad Reza AKBARI Javad | 2009 | Tsinghua Science and Technology2009，14，S1： | 1 |
| 19 | Functionally Gradient Material Laser Rapid Prototyping Technique显示文摘The functionally gradient material laser rapid prototyping system is developed based on the increasing material manufacture idea of the rapid prototyping. The system hardware is composed of a 5 kW CO2 laser, a three-dimensional numeric control table, a three-stock-bin coaxial powder delivery device, and an integration operation control desk. The system software is composed of the CAD slicing and scan filling module, materials component distributing design module, and hardware equipment integration drive module. The real time change proportion allocation technique of three metal powders, powder uniform mixing technique, and coaxial powder delivery technique are studied. According to the principle of the output powder cumulative volume invariable in unit time, the real time powder allocation formulae are deduced. The design method of the materials component distributing regularity in the part entity is studied. The gradient change regularity of the face gradient, line gradient, and point gradient is studied. A sort of the file layout of integrating material information and geometry information is brought forward. | 王维 尚晓峰 | 2009 | Tsinghua Science and Technology2009，14，S1： | 1 |
| 20 | Dual-Polarized RIS-Based STBC Transmission with Polarization Coupling Analysis显示文摘The rapid development of the reconfigurable intelligent surface(RIS)technology has given rise to a new paradigm of wireless trans-mitters.At present,most research works on RIS-based transmitters focus on single-polarized RISs.In this paper,we propose a dual-polarized RIS-based transmitter,which realizes 4-transmit space-time block coding(STBC)transmission by properly partitioning RIS’s unit cells and utilizing the degree of freedom of polarization.The proposed scheme is evaluated through a prototype system that utilizes a fabricated dual-polarized phase-adjustable RIS.In particular,the polarization coupling phenomenon in each unit cell of the employed dual-polarized RIS is modeled and analyzed.The experimental results are in good agreement with the theoretical modeling and analysis results,and an initial re-search effort is made on characterizing the polarization coupling property in the dual-polarized RIS. | ZHOU Mingyong CHEN Xiangyu TANG Wankai KE Jun Chen JIN Shi CHENG Qiang CUI Tie Jun | 2022 | ZTE Communications2022，20，1： | 1 |
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