Advances in Mechanical Engineering最新文献

筛选

英文中文

A screw extrusion-based system for additive manufacturing of wood: Sodium silicate thermoset composites 基于螺杆挤压的木材增材制造系统：硅酸钠热固性复合材料

Advances in Mechanical Engineering Pub Date : 2023-11-01 DOI: 10.1177/16878132231210373

Robert HR Carne, A. Alade, Berlinda O. Orji, Ahmed Ibrahim, Armando G McDonald, M. Maughan

{"title":"A screw extrusion-based system for additive manufacturing of wood: Sodium silicate thermoset composites","authors":"Robert HR Carne, A. Alade, Berlinda O. Orji, Ahmed Ibrahim, Armando G McDonald, M. Maughan","doi":"10.1177/16878132231210373","DOIUrl":"https://doi.org/10.1177/16878132231210373","url":null,"abstract":"The aims of this work were to investigate the printability of high-fraction wood and sodium-silicate composites (WSSC) for additive manufacturing and to develop a screw extrusion-based process to demonstrate this approach for building construction applications. A custom additive manufacturing system was fabricated, and mixtures of 40%–60% wood fiber and 60%–40% sodium silicate were printed. The printability of these formulations was determined by observing their viscosity, extrudability, print-bed and layer adhesion, and curing characteristics. Fiber to resin ratios of 45:55 to 50:50 were the most suitable for printing. The printability was also affected by printing temperature and nozzle travel speed. The mechanical properties of printed and cured WSSC, were determined by three-point bending, tensile, and compression testing. Tensile strength, bending strength, and elastic modulus were found to be comparable to those of 3D printed concrete and other wood-plastic composites reported in the literature. The WSSC was successfully printed into a panel indicating promise for use in additive manufacturing.","PeriodicalId":502561,"journal":{"name":"Advances in Mechanical Engineering","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139299105","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

首页上一页