International Journal of 3D Printing Technologies and Digital Industry最新文献_第9页

PERFORMANCE ANALYSIS OF HEXAGONAL UNIT CELL STENT DESIGN AND SINGLE-LAYERED MANUFACTURABILITY WITH FDM 基于FDM的六边形单胞支架设计与单层可制造性性能分析

International Journal of 3D Printing Technologies and Digital Industry Pub Date : 2022-08-21 DOI: 10.46519/ij3dptdi.1134055

Hakan Burçin Erdoğuş

{"title":"PERFORMANCE ANALYSIS OF HEXAGONAL UNIT CELL STENT DESIGN AND SINGLE-LAYERED MANUFACTURABILITY WITH FDM","authors":"Hakan Burçin Erdoğuş","doi":"10.46519/ij3dptdi.1134055","DOIUrl":"https://doi.org/10.46519/ij3dptdi.1134055","url":null,"abstract":"The usability of polymer stents is questioned according to the results obtained from preliminary clinical studies for biodegradable polymer-based stents developed after drug-eluting stents. Due to the high strut thickness and weak mechanical properties of polymer stents, research continues on the creation of new models by improving the design and material. The dog-boning in balloon-expanded stents damages the intimal and medial layers within the artery. This damage causes neointimal hyperplasia and restenosis in the early period. During the balloon expansion of the Palmaz-Schatz unit cell model, which is one of the metallic stent geometries, dog-boning and foreshortening rates occur. In this study, a new design was carried out in hexagonal unit stent geometry from PLLA material, taking into account the geometry formed by the expansion of the Palmaz-Schatz stent geometry. The dog-boning and foreshortening ratio of the hexagonal stent designed in thin strut thickness was determined by finite element simulation. In addition, vessel injury in the three-layered artery and calcified plaque structure was measured during stent expansion. The dog-boning and foreshortening ratio of the stent with hexagonal geometry is reduced compared to the Palmaz-Schatz model. However, after the 3D printing of the hexagonal stent geometry was produced as a single layer by fused deposition modeling from PLA/PHA blends, it was wrapped on a heating tubular table and brought into the stent form.","PeriodicalId":358444,"journal":{"name":"International Journal of 3D Printing Technologies and Digital Industry","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114985650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

EVALUATION OF SURFACE ROUGHNESS IN DRILLING OF AA7075 T6 PLATE WITH DIFFERENT CUTTING TOOL GEOMETRIES WITH EXPERIMENTAL, STATISTICAL AND DEFORM 3D SIMULATION 不同刀具几何形状下aa7075t6板材钻孔表面粗糙度的实验、统计和变形三维模拟

International Journal of 3D Printing Technologies and Digital Industry Pub Date : 2022-08-15 DOI: 10.46519/ij3dptdi.1138710

Ömer Erkan

{"title":"EVALUATION OF SURFACE ROUGHNESS IN DRILLING OF AA7075 T6 PLATE WITH DIFFERENT CUTTING TOOL GEOMETRIES WITH EXPERIMENTAL, STATISTICAL AND DEFORM 3D SIMULATION","authors":"Ömer Erkan","doi":"10.46519/ij3dptdi.1138710","DOIUrl":"https://doi.org/10.46519/ij3dptdi.1138710","url":null,"abstract":"The basis of the study is to examine the average surface roughness (Ra) value resulting from drilling AA 7075 T6 plates with drills with different point angles () and under different cutting parameters. However, two different point angles (118° and 135°), three different cutting speeds (Vc) (40, 60 and 80 m/min) and three different feeds (f) (0.04, 0.08 and 0.12 mm/rev) were preferred in the experiments. The effect of cutting and tool geometry parameters on Ra was digitized by performing an ANOVA analysis. It was determined that Ra increased with the increase of Vc,  and f. The parameter with the most significant effect on Ra was Vc with 52.77%, followed by  with 30.52% and f with 13.72%, respectively. In order to examine the reasons for the increase in Ra value more effectively, drilling simulations were carried out under different cutting parameters using Deform 3D software. The simulation estimated temperature, cutting force and damage during drilling. The predicted results and the factors on Ra were revealed. In the experiments carried out with the drill with a tip angle of 135°, it was estimated that the temperature, the temperature, the cutting force and the damage value along the Z-axis were higher than the drill with a tip angle of 118°.","PeriodicalId":358444,"journal":{"name":"International Journal of 3D Printing Technologies and Digital Industry","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115806697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Example of Using 3d Printers in Hospital Biomedical Units 在医院生物医学单位使用3d打印机的例子

International Journal of 3D Printing Technologies and Digital Industry Pub Date : 2022-08-15 DOI: 10.46519/ij3dptdi.1068287

M. Şahin

引用次数: 0

3D PRINTED HOLTER ELECTROCARDIOGRAM (ECG) 3d打印动态心电图(ecg)

International Journal of 3D Printing Technologies and Digital Industry Pub Date : 2022-08-11 DOI: 10.46519/ij3dptdi.1130004

P. Demircioglu, İsmail Böğrekci̇, Şerife Cansu Uymaz

引用次数: 0

FUNCTIONALIZATION OF WOVEN FABRICS BY 3D PRINTED STRUCTURES IN FUSED DEPOSITION MODELLING (FDM): EFFECTS OF INFILL PATTERNS ON TENSILE STRENGTH 在熔融沉积建模(fdm)中3d打印结构对机织物的功能化:填充图案对拉伸强度的影响

International Journal of 3D Printing Technologies and Digital Industry Pub Date : 2022-08-10 DOI: 10.46519/ij3dptdi.1134373

Murat Demir

引用次数: 0

A COMPUTATIONAL DETERMINATION OF A NOZZLE ACTIVATED FIXED-WING UAV 喷嘴激活固定翼无人机的计算确定

International Journal of 3D Printing Technologies and Digital Industry Pub Date : 2022-08-08 DOI: 10.46519/ij3dptdi.1128158

T. Saraçyakupoğlu, Heyzem Doğukan Deli̇baş, Ahmet Devlet Özçeli̇k

引用次数: 0

Polyacrylonitrile (PAN) Electrospun nanofibers Coated 3D printed PLA materials with Different Infill Patterns and Their Tensile Properties 聚丙烯腈(PAN)静电纺纳米纤维包覆3D打印PLA材料及其拉伸性能

International Journal of 3D Printing Technologies and Digital Industry Pub Date : 2022-08-06 DOI: 10.46519/ij3dptdi.1142097

Atike İnce Yardimci

引用次数: 0

Determination of Buildings With Torsional Irregularity by Artificial Intelligence Methods 用人工智能方法确定建筑物扭转不规则性

International Journal of 3D Printing Technologies and Digital Industry Pub Date : 2022-08-05 DOI: 10.46519/ij3dptdi.1138781

P. Usta, Zeki Kaya, Merdan Özkahraman

{"title":"Determination of Buildings With Torsional Irregularity by Artificial Intelligence Methods","authors":"P. Usta, Zeki Kaya, Merdan Özkahraman","doi":"10.46519/ij3dptdi.1138781","DOIUrl":"https://doi.org/10.46519/ij3dptdi.1138781","url":null,"abstract":"Reinforced Concrete (RC) frame buildings with shear wall are widely used in severe seismic zones. Shear walls are bearing system elements that provide the greatest resistance against horizontal force under the effect of earthquake, limit displacements and prevent torsions. A reinforced concrete shear wall is one of the most critical structural members in buildings, in terms of carrying lateral loads. However, irregular layouts cause to torsional irregularity in buildings. For this purpose, different shear wall frame reinforced concrete building models are designed. The model buildings have a regular formwork plan. The shear wall layout has different variations in each plan. These structure plans were mainly classified in two classes according to their torsional irregularities as structures with torsional irregularities and Structures with non-torsional irregularities. Artificial intelligence (AI) has revolu-tionized industries such as healthcare, agriculture, transportation, and education, as well as a variety of structural engineering problems. Artificial intelligence is transforming decision-making more easier and reshaping building design processes to be smarter and automated. Artificial intelligence technolo-gy of learning from an existing knowledge base is used to automate various civil engineering applica-tions such as compressive strength estimation of concrete, project pre-cost and duration, structural health monitoring, crack detection and more. In this study, it is aimed to determine the structures with torsional irregularity using artificial intelligence methods. Besides, the study is expected to introduce and demonstrate the capability of Artificial intelligence-based frameworks for future relevant studies within structural engineering applications and irregularities.","PeriodicalId":358444,"journal":{"name":"International Journal of 3D Printing Technologies and Digital Industry","volume":"200 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116153386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

INVESTIGATION OF THE LOAD-BEARING CAPACITY OF Co-Cr LATTICE STRUCTURES FABRICATED BY SELECTIVE LASER MELTING 选择性激光熔化法制备钴铬晶格结构的承载性能研究

International Journal of 3D Printing Technologies and Digital Industry Pub Date : 2022-08-01 DOI: 10.46519/ij3dptdi.1139802

N. Babacan, Hübannur Şeremet

引用次数: 2

OPTIMIZATION OF 3D PROCESSING PARAMETERS USED FDM METHOD IN THE PRODUCTION OF ABS BASED SAMPLES 利用FDM方法对abs基样品的三维加工参数进行优化

International Journal of 3D Printing Technologies and Digital Industry Pub Date : 2022-07-24 DOI: 10.46519/ij3dptdi.1126200

Musa Bilgin

{"title":"OPTIMIZATION OF 3D PROCESSING PARAMETERS USED FDM METHOD IN THE PRODUCTION OF ABS BASED SAMPLES","authors":"Musa Bilgin","doi":"10.46519/ij3dptdi.1126200","DOIUrl":"https://doi.org/10.46519/ij3dptdi.1126200","url":null,"abstract":"Manufacturing with 3D printers is a very complex process due to many input parameters. This situation makes it difficult to determine optimum production parameters. In this study; hen the production of ABS materials with the fused deposition method (FDM) in 3D printers, the effects of process parameters, which are infill density (50%, 70%, and 90%), fill pattern (linear, octagonal and honeycomb), and layer thickness (0.19mm, 0.29mm and 0.39mm) were investigated on surface roughness, tensile strength, and manufacturing times by analysis of variance (ANOVA). The most effective process parameter on the output parameters was the layer thickness. While the decreasing layer thickness had a positive effect on the surface roughness and tensile strength, it had a negative effect on the manufacturing time. In the experiments carried out according to the Taguchi L27 (33) experimental design, since three different output parameters were evaluated in the optimization process, the gray relational degree was used as the evaluation criterion in the multiple performance optimizations. The optimum processing parameter was determined as linear fill pattern, 90% infill density and 0.19 mm layer thickness.","PeriodicalId":358444,"journal":{"name":"International Journal of 3D Printing Technologies and Digital Industry","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116296263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0