Optimization of part orientation and adapted supports for manufacturing of ceramic parts by stereolithography using finite element simulations
Vincent Pateloup,Philippe Michaud,Thierry Chartier +2 more
- Vol. 6, pp 100132
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TLDR
In this article, a finite element simulation of scraping is performed to analyze the best green part orientation and adapted supports during the stereolithography process, and a specific and original experiment is developed to identify the scrapings loads, essential as input data for the simulation.Abstract:
The manufacturing of ceramic green parts using the stereolithography process requires several steps, which can each influence the mechanical properties of the printed parts: dimensional precision, surface roughness and mechanical strength. The part orientation with respect to the working plan and adapted supports are key points to avoid the failure of the green part during its construction. Indeed, mechanical forces generated during the spreading of thin layers of ceramic suspension generate significant loads on the green part being printed and may displace it or lead to its rupture. It is then crucial to choose a part orientation that minimize these effects and to create adapted supports that can hold the scraping loads. In this respect, a finite element simulation of scraping is performed to analyze the best green part orientation and adapted supports during the stereolithography process. A specific and original experiment is developed to identify the scrapings loads, essential as input data for the simulation. Modellings confirms that the orientation of the support greatly influences the deformations of the green part and highlights the importance of the support stiffness that absorb the scraping forces.read more
Citations
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References
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Journal ArticleDOI
Part orientation and build cost determination in layered manufacturing
TL;DR: By decoupling the solution to these problems from a specific LM technology, not only can the solution be applied to a variety of processes, but more realistic cost comparisons of parts built on different machines become possible.
Journal ArticleDOI
Multi‐objective optimization of part‐ building orientation in stereolithography
TL;DR: In this paper, a multi-objective approach for determining the optimal part-building orientation is presented, based on known sources of errors affecting part accuracy and the requirements of good orientations during the building of a model.
Journal ArticleDOI
Stereolithography of structural complex ceramic parts
TL;DR: In this article, a cost-effective method of complex ceramic parts manufacturing using stereolithography has been developed, which consists in fabricating ceramic pieces by laser polymerization of an UV curable monomeric system, subsequent removal of organic components and sintering.
Journal ArticleDOI
Determining fabrication orientations for rapid prototyping with Stereolithography apparatus
TL;DR: This research investigates geometric issues involved while using a particular rapid prototyping system, called Stereolithography Apparatus (SLA), which creates prototypes layer by layer, each layer being formed by scanning a laser beam across the x-y surface of a vat of liquid monomer mix.
Journal ArticleDOI
A comprehensive review of the photopolymerization of ceramic resins used in stereolithography
TL;DR: In this article, the theoretical background and engineering capabilities of CSL with an emphasis on photopolymerization of ceramic resins are discussed and some constraints and characteristics designed to achieve optimal printability and photo-curability goals.
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