Optimum part deposition orientation for multiple objectives in SL and SLS prototyping

Singhal, Sudhir; Jain, Prashant K.; Pandey, Pulak M.; Nagpal, A. K.

doi:10.1080/00207540802183661

Cited by 43 publications

(16 citation statements)

References 22 publications

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“…The objective functions are developed analytically, numerically and experimentally. For example, Singhal et al (2009) developed an experimental equation as a function of build angle, layer thickness and power. The fatigue function could be modeled as an experimental equation and as a function of laser power, scan speed, layer thickness and build angle.…”

Section: Process Planning and Parameter Optimizitionmentioning

confidence: 99%

Simulation and optimization framework for additive manufacturing processes

Zhou

Chen

Tang

et al. 2014

Proceedings of the 2014 International Conference on Innovative Design and Manufacturing (ICIDM)

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Different from the traditional subtractive manufacturing, additive manufacturing --a more flexible and material saving manufacturing technology has been developed in these recent years. This paper presents a simulation and optimization framework for Additive Manufacturing (AM) processes in practical industry. Starting from multi-level part design, to process optimization and planning, from energy and material consumption to the Key Performance Indicator (KPI) evaluation, the paper presents a complete practical working flow of AM technologies. Four models are developed within the framework: the design model, the process optimization and planning model, the energy and material consumption model and the production model. All the four models connect subsequently one another. Their concepts and corresponding methods will be presented in order in each chapter of the paper. A close optimization loop can be formed by these models. The feedbacks of each model will be used to optimize the design as well as the process planning. Preliminary experiments data are generalized and analysed by each model.

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Section: Process Planning and Parameter Optimizitionmentioning

confidence: 99%

Simulation and optimization framework for additive manufacturing processes

Zhou

Chen

Tang

et al. 2014

Proceedings of the 2014 International Conference on Innovative Design and Manufacturing (ICIDM)

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“…And this method cannot be used to calculate the whole energy consumption of SLS. Singhal et al [9] performed a research on the optimum part deposition orientation for Stereolithography (SLA) and SLS process to achieve the best surface quality of part.…”

Section: Relevant Workmentioning

confidence: 99%

Energy consumption model of Binder-jetting additive manufacturing processes

Meteyer

Perry

et al. 2014

International Journal of Production Research

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“…e surface integrity of manufactured SLS parts was the focus of few previous studies. Among these works, Singhal et al [10] attempted to optimize the part build orientation for better surface roughness and minimum build time. Further work was carried out by Bai et al [11] who have investigated the tribological properties of MoS 2 -filled PA12 manufactured with SLS process and reported that the inclusion of MoS 2 filler could improve the impact properties of SLS parts.…”

Section: Introductionmentioning

confidence: 99%

Effects of Fabrication Parameters on the Properties of Parts Manufactured with Selective Laser Sintering: Application on Cement-Filled PA12

Gadelmoula

Aldahash

2019

Advances in Materials Science and Engineering

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Selective laser sintering (SLS) becomes a promising technology for manufacturing complicated objects with small to moderate numbers from a wide range of polymeric and metallic powders. However, the fabrication parameters in the SLS process need to be tailored for each end-use fabricated product. Hence, it becomes extremely important to investigate the effects of fabrication parameters on the mechanical and morphological properties of SLS parts. For this purpose, the present experimental work is devoted to evaluating the effects of some important fabrication parameters, that have not received proper attention in the published literature, on the properties of cement-filled polyamide 12 (PA12) parts manufactured with the SLS technique. The effect of scanning vector length on the tensile, compressive, and flexural strength of manufactured PA12/white cement parts is investigated. Also, the end-of-vector (EOV) effect on the edge geometry of manufactured parts is studied. Moreover, the effect of incident laser power (LP) on the surface quality of fabricated SLS PA12/white cement parts is qualitatively evaluated. The results from this work revealed that the scanning vector length significantly affects the mechanical properties of SLS parts provided that the load is applied along the scanning vector direction. Also, it is noticed that excessive exposure to laser energy at layer edges can deteriorate the part’s edge and in some cases can cause localized heating and burning of the part’s edge and, eventually, can result in surface microcracks. Finally, the experiments confirmed that increasing the laser power can enhance the surface roughness of manufactured parts; however, excessive increase in laser power causes localized burning and initiation of surface microcracks.

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Optimum part deposition orientation for multiple objectives in SL and SLS prototyping

Cited by 43 publications

References 22 publications

Simulation and optimization framework for additive manufacturing processes

Simulation and optimization framework for additive manufacturing processes

Energy consumption model of Binder-jetting additive manufacturing processes

Effects of Fabrication Parameters on the Properties of Parts Manufactured with Selective Laser Sintering: Application on Cement-Filled PA12

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