Materials Research Proceedings最新文献_第7页

From strain to stress using full-field data: Computationally efficient stress reconstruction 利用全场数据从应变到应力：计算效率高的应力重建

Materials Research Proceedings Pub Date : 2024-05-15 DOI: 10.21741/9781644903131-120

M. Halilovič

引用次数: 0

Optimization of the temperature profile of PET preform via a 3D modelling of the Infrared Heating and ventilation 通过红外线加热和通风的 3D 建模优化 PET 瓶坯的温度曲线

Materials Research Proceedings Pub Date : 2024-05-15 DOI: 10.21741/9781644903131-284

Yun-Mei Luo

引用次数: 0

Development of the cross-section moment in air-bending 空气弯曲中横截面力矩的发展

Materials Research Proceedings Pub Date : 2024-05-15 DOI: 10.21741/9781644903131-113

A-.P. Pokka

引用次数: 0

Numerical process design for the production of a hybrid die made of tool steel X38CrMoV5.3 and inconel 718 生产由工具钢 X38CrMoV5.3 和 inconel 718 制成的混合模具的数值工艺设计

Materials Research Proceedings Pub Date : 2024-05-15 DOI: 10.21741/9781644903131-89

Janina Siring

{"title":"Numerical process design for the production of a hybrid die made of tool steel X38CrMoV5.3 and inconel 718","authors":"Janina Siring","doi":"10.21741/9781644903131-89","DOIUrl":"https://doi.org/10.21741/9781644903131-89","url":null,"abstract":"Abstract. Dies used in hot forging are subjected to high cyclic thermo-mechanical loads, which lead to die failure. There are various options for increasing the service life of these dies, for example coatings or heat treatments. Another possibility is to adapt the choice of material, which is the focus of this work. For example, the nickel-based alloy Inconel has a higher strength at elevated temperatures compared to tool steel. However, Inconel is difficult to manufacture and has higher material costs. For this reason, a new process design for the production of a hybrid die consisting of Inconel 718 and tool steel X38CrMoV5.3 is presented within this work. To produce the hybrid dies, the two materials are first friction welded and then formed using hot forging. In addition to the numerical process design, experimental tests are also carried out to manufacture such hybrid dies. Furthermore, a numerical parameter study is done to determine the influence of the forging temperature, the forging speed and the initial Inconel thickness on the process parameters. It can be shown that the production of hybrid dies is possible by using the Tailored Forming process chain. The influencing factors investigated change the required press force and also the material distribution of the Inconel in the hybrid die produced. In the future, further experimental tests will be carried out to determine the service life of the hybrid dies.","PeriodicalId":515987,"journal":{"name":"Materials Research Proceedings","volume":"11 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140974415","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

Property grading by friction induced and continuous solid-state recycling of aluminium scrap 通过摩擦诱导和连续固态回收废铝实现性能分级

Materials Research Proceedings Pub Date : 2024-05-15 DOI: 10.21741/9781644903131-305

T. Borgert

{"title":"Property grading by friction induced and continuous solid-state recycling of aluminium scrap","authors":"T. Borgert","doi":"10.21741/9781644903131-305","DOIUrl":"https://doi.org/10.21741/9781644903131-305","url":null,"abstract":"Abstract. Saving energy and reducing emissions in all sectors is essential if the ambitious climate targets of various European countries are to be met. One way of achieving this is to recycle metallic materials, which require a lot of energy to produce, in a way that minimizes the use of energy and resources. The friction-induced solid-state recycling process enables the energy-efficient recycling of what is in theory an endless aluminium semi-finished product through the continuous rotation of the wheel used. The past investigations proved the energy-efficient recycling of new aluminium scrap (powder, foil, chips) to a full semi-finished product with good properties. The continuous character of the process along with the likewise continuous feeding of the material to be recycled enables both mixing and successive processing of different aluminium alloys. For this purpose, the processed four different aluminium alloys are selectively mixed and processed simultaneously, as well as different alloys are processed one after the other to achieve a gradation of properties along the length of the semi-finished product. The recycled semi-finished product is examined regarding die filling, hardness, tensile strength as well as microstructure. The central result of the investigations is the fact that the friction-induced recycling process has different possibilities for grading the properties and microstructure in a wide range.","PeriodicalId":515987,"journal":{"name":"Materials Research Proceedings","volume":"47 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140976388","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

Effect of SiC addition on processability of AISI S2 tool steel for laser powder bed fusion 添加碳化硅对用于激光粉末床熔化的 AISI S2 工具钢加工性能的影响

Materials Research Proceedings Pub Date : 2024-05-15 DOI: 10.21741/9781644903131-24

E. Saggionetto

{"title":"Effect of SiC addition on processability of AISI S2 tool steel for laser powder bed fusion","authors":"E. Saggionetto","doi":"10.21741/9781644903131-24","DOIUrl":"https://doi.org/10.21741/9781644903131-24","url":null,"abstract":"Abstract. Laser Powder Bed Fusion (LPBF) of metallic alloys allows to achieve complex shape parts with innovative properties. However, the commercial availability of powder for LPBF is still limited, thus restraining the development of new alloys. To overcome this shortcoming, mixing different powders allows to tailor the chemical composition, although affecting the LPBF process. Indeed, to achieve a fully dense and defect-free part a proper melt pool must be generated during the LPBF process, in order to ensure good overlapping between each track and layer. Melt pools can be described as conductive or key-hole like, promoting the appearance of process-induced defects such as lack of fusion or key-hole porosities. Processing a mixture of several powders by changing the amount of one constituent can affect the type of melt pool generated during the process, thus shifting the process map. In this work, AISI S2 tool steel powders are enriched with 5 and 10% (in volume) of Silicon Carbide (SiC) and processed by LPBF. The effect of SiC on the processability is discussed for different volumetric energy density (Ed). Defects within cross sections are characterized and quantified, as well as the melt pool depth and morphology.","PeriodicalId":515987,"journal":{"name":"Materials Research Proceedings","volume":"48 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140973164","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

Numerical and experimental analysis of struts joined by electromagnetic forming for aircraft applications 飞机应用中通过电磁成形连接支柱的数值和实验分析

Materials Research Proceedings Pub Date : 2024-05-15 DOI: 10.21741/9781644903131-153

V. Psyk

{"title":"Numerical and experimental analysis of struts joined by electromagnetic forming for aircraft applications","authors":"V. Psyk","doi":"10.21741/9781644903131-153","DOIUrl":"https://doi.org/10.21741/9781644903131-153","url":null,"abstract":"Abstract. Joining by electromagnetic forming can provide high-strength connections of tubes and connector parts from different materials. In order to qualify this technology for manufacturing components made of high-strength aluminum alloys typically used in aircraft manufacturing a parameter study was performed on form fit joining of tubes (outer diameter: 70 mm, wall thickness: 1.6 mm) and mandrels (diameter: 66.6 mm) both made of EN AW-2024 (T351). Since some aircraft applications, e. g. the so-called z-struts, which support the passenger floor of the airplane, are related to high axial compressive loads and medium axial tensile loads, this load scenario was considered. In order to increase especially the compressive load-bearing capacity, joint configurations featuring direct support of the tube end via a step or a shoulder of the joining partner were designed and investigated. The axial support can increase the transferable compressive load, while the tensile load remains largely unaffected. Attention must be paid to the gap between tube end and axial support, which cannot be fully avoided due to axial material flow during the electromagnetic joining process. Bending the tube end into a groove providing axial support of the tube end enables compressive load-bearing capacities, which can approximate the strength of the tube material. Here, increasing bending angles improve the load-bearing capacity under tensile force, but reduce the transferable compressive load. Multiple groove configurations can provide acceptable load bearing capacity considering tensile and compressive load. Numerical simulation can predict the general behavior of components joined by electromagnetic forming, help to understand the damage mechanisms of the joint and allow identifying trends for joint design.","PeriodicalId":515987,"journal":{"name":"Materials Research Proceedings","volume":"89 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140973181","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

The continuous fibre injection process (CFIP): A novel approach to lightweight design of multi-material structural components 连续纤维注射工艺（CFIP）：多材料结构部件轻量化设计的新方法

Materials Research Proceedings Pub Date : 2024-05-15 DOI: 10.21741/9781644903131-181

Marc Crescenti

{"title":"The continuous fibre injection process (CFIP): A novel approach to lightweight design of multi-material structural components","authors":"Marc Crescenti","doi":"10.21741/9781644903131-181","DOIUrl":"https://doi.org/10.21741/9781644903131-181","url":null,"abstract":"Abstract. The combination of different materials enables to achieve highly efficient structures in terms of lightweight and mechanical performance, as well as in terms of manufacturing costs. However, the weakest points of these structures use to be the joints. For this reason, in the last years, many studies have dealt with joining technologies for dissimilar materials. The Reinforce3D’s Continuous Fibre Injection Process (CFIP) technology delivers a unique method to join dissimilar materials. CFIP is based on injecting continuous fibers, such as carbon fibers, simultaneously with liquid resin into tubular cavities within the part. Then the resin is cured and the final composite part is obtained. This work focuses on the characterization of the mechanical properties of CFIP-made specimens and describes the potential lightweight benefits of the technology. Mechanical tests were performed under tensile and bending conditions following standardized methods. The lightweight potential is addressed by developing a representative case study by implementing finite element and topology optimization methods. The results of this case study were finally compared with a monomaterial equivalent component (aluminium) demonstrating the improvement that CFIP provides in terms of lightweight while keeping the strength.","PeriodicalId":515987,"journal":{"name":"Materials Research Proceedings","volume":"72 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140973715","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

Experimental characterisation for compression moulding of hybrid architecture composites using reclaimed prepreg manufacturing waste 利用回收的预浸料生产废料对混合结构复合材料进行压缩成型的实验表征

Materials Research Proceedings Pub Date : 2024-05-15 DOI: 10.21741/9781644903131-70

Connie Qian

引用次数: 0

Necking detection in stretch-bent materials exhibiting the Portevin-Le Chatelier effect 显示波特文-勒夏特列效应的拉伸弯曲材料中的缩颈检测

Materials Research Proceedings Pub Date : 2024-05-15 DOI: 10.21741/9781644903131-174

A. J. Martínez-Donaire

引用次数: 0