TY  - JOUR
A1  - Zhang, Hang
A1  - Yao, Yuan
A1  - Ma, Yingxin
A1  - Lackner, Maximilian
A1  - Jiang, Yunliang
T1  - A 3D printing tool-path generation strategy based on the partition of principal stress field for fused filament fabrication
JF  - The International Journal of Advanced Manufacturing Technology
N2  - In order to enhance the strength of 3D-printed parts made of polymer materials and reduce the anisotropy caused by the fused filament fabrication process, this paper proposes an inter-layer interleaved composite path planning method based on the directional partition of the principal stress field. This method not only ensures intra-layer reinforcement under specific working conditions but also increases the strength of the printed part by enhancing the adhesion of adjacent layers through staggered filling between layers. The mechanical performance is improved by 10 to 30% compared to other conventional filling patterns such as the zigzag filling algorithm. Inter-layer interleaved composite enhancement path planning method is suitable for path planning of structures with complex shapes and is easily integrated into existing general computer-aided engineering processes.
KW  - Principal stress field
KW  - Anisotropy strength
KW  - Clustering
Y1  - 
IS  - 122
SP  - 1719
EP  - 1735
ER  - 
TY  - CHAP
A1  - Angel, Nikolaus
A1  - Orsolits, Horst
A1  - Garcia, Jose
T1  - Developing an AR Based Tool for Teaching Motion Analysis on Assembly Tasks
T2  - 2022 8th International Conference of the Immersive Learning Research Network (iLRN), 2022
N2  - Engineering education courses look into processes, equipment and people in order to prepare students to tackle problems in their careers. In manufacturing industry, it is important to use virtual manufacturing tools to analyse processes. This includes both equipment and people. Assembly operations can involve human operators. Modular arrangements of predetermined time standards MODAPTS is a predetermined motion time system method used to analyse assembly processes. Augmented reality (AR) is increasingly being used for industrial processes as well as in education. AR application have been used for maintenance training as a useful way to overly digital instructions to a trainee whilst being able to look at a real object. This is potential beneficial for education. This paper presents the evaluation of a prototype to test a predetermined time standards model using an AR application. An evaluation was carried out comparing AR-based instructions in tablet and PC monitor and paper-written instructions. The results of evaluating the prototype encourage their use as an educational tool in engineering courses.
KW  - Augmented Reality
KW  - Education Technology
KW  - Virtual Engineering
KW  - Assembly Assistance
Y1  - 
SN  - 978-1-7348-9952-8
U6  - http://dx.doi.org/10.23919/iLRN55037.2022.9815914
ER  -