Quantifying residual orientation and thermal stress contributions to birefringence in the material extrusion of polylactide [0.03%]
量化材料挤出成型中残余取向和热应力对聚乳酸双折射的贡献
Anthony P Kotula,Benjamin E Dolata,Yoontae Kim et al.
Anthony P Kotula et al.
Material extrusion is a common additive manufacturing process that subjects polymers to non-steady deformation and thermal processing to build a customized part. The mechanical properties of these parts are often worse than those of injecti...
Influence of Spectral Bandwidth on the Working Curve in Vat Photopolymerization [0.03%]
光谱带宽对桶装光固化成型工艺工作曲线的影响研究
Benjamin W Caplins,Thomas J Kolibaba,Uwe Arp et al.
Benjamin W Caplins et al.
In vat photopolymerization, 3-dimensional parts are fabricated by using patterned light to spatially cure a liquid resin. One of the foundational measurements for vat photopolymerization is known as the working curve whereby the depth (i.e....
Results of an interlaboratory study on the working curve in vat photopolymerization [0.03%]
箱外校正曲线的实验室间研究结果
Thomas J Kolibaba,Jason P Killgore,Benjamin W Caplins et al.
Thomas J Kolibaba et al.
The working curve informs resin properties and print parameters for stereolithography, digital light processing, and other photopolymer additive manufacturing (PAM) technologies. First demonstrated in 1992, the working curve measurement of ...
Upper bound of feed rates in thermoplastic material extrusion additive manufacturing☆ [0.03%]
基于热塑性材料挤出的增量制造进给速度上限研究
Cheng Luo,Xiang Wang,Kalman B Migler et al.
Cheng Luo et al.
In this work, we develop a simple model to determine the upper bound of feed rates that do not cause jamming in material extrusion additive manufacturing, also known as fused deposition modeling (FDM)™ or fused-filament fabrication (FFF). ...
Predictive modeling and optimization of multi-track processing for laser powder bed fusion of nickel alloy 625 [0.03%]
镍合金625激光粉床熔融多轨道处理的预测建模和优化
Luis E Criales,Yiğit M Arısoy,Brandon Lane et al.
Luis E Criales et al.
This paper presents an integrated physics-based and statistical modeling approach to predict temperature field and meltpool geometry in multi-track processing of laser powder bed fusion (L-PBF) of nickel 625 alloy. Multi-track laser process...
Digital light 3D printing of a polymer composite featuring robustness, self-healing, recyclability and tailorable mechanical properties [0.03%]
一种兼具坚固性、自愈性、可回收性和机械性能可调性的聚合物复合材料的数字光处理3D打印技术
Wei Huang,Jianhui Zhang,Vikaramjeet Singh et al.
Wei Huang et al.
Producing lightweight structures with high weight-specific strength and stiffness, self-healing abilities, and recyclability, is highly attractive for engineering applications such as aerospace, biomedical devices, and smart robots. Most se...
3D direct-write printing of water soluble micromoulds for high-resolution rapid prototyping [0.03%]
用于高分辨率快速制作的水溶性微模具的三维直接书写打印技术
Saja Aabith,Richard Caulfield,Omid Akhlaghi et al.
Saja Aabith et al.
Direct-write printing has contributed tremendously to additive manufacturing; in particular extrusion based printing where it has extended the range of materials for 3D printing and thus enabled use across many more sectors. The printing in...
Influence of fluorescent dopants on the vat photopolymerization of acrylate-based plastic scintillators for application in neutron/gamma pulse shape discrimination [0.03%]
掺杂荧光剂对丙烯酸基闪烁塑料凝胶型立体光刻打印技术的影响及其在中子/γ脉冲形状甄别中的应用研究
Caleb Chandler,Dominique H Porcincula,Michael J Ford et al.
Caleb Chandler et al.
Plastic scintillators, a class of solid-state materials used for radiation detection, were additively manufactured with vat photopolymerization. The photopolymer resins consisted of a primary dopant and a secondary dopant dissolved in a bis...
Simultaneous rheology and cure kinetics dictate thermal post-curing of thermoset composite resins for material extrusion [0.03%]
流变学和固化动力学同时决定热固性复合树脂的材料挤出热后固化
Stian K Romberg,Anthony P Kotula
Stian K Romberg
Thermoset composites are excellent candidates for material extrusion because they shear thin during extrusion but retain their shape once deposited via a yield stress. However, thermal post-curing is often required to solidify these materia...
Data registration for multi-method qualification of additive manufactured components [0.03%]
用于增材制造件多方法考核的数据登记
M Praniewicz,G Ameta,J Fox et al.
M Praniewicz et al.
This work refines surface registration methods for metrological datasets to improve the multi-method qualification accuracy of additively manufactured (AM) lattices. Datasets acquired from X-ray computed tomography and a coordinate measurem...