Analyzing Laser Beam-Matter Interaction in Selective Laser Melting

Bridget Cunningham July 4, 2017

Many manufacturing processes already benefit from selective laser melting. The potential for combining this technique with high-melting materials is clear, but there are challenges to consider. For instance, these materials have a much narrower processing window. To better understand their behavior in selective laser melting, one research group built a model to analyze the thermal and fluid dynamics of laser beam-matter interaction. Their results generated further momentum in extending the use of this technique to process refractory metals.

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Caty Fairclough December 22, 2016

In 3D printers, suboptimal cooling and cure rates can negatively affect the manufactured parts and components. By optimizing a 3D printer’s design, we can ensure the quality of the printed objects. One research group used simulation to analyze the cooling process and the resulting glass-transition temperature of the polymer in a 3D printer. Let’s look at how they modeled the extrusion of acrylonitrile butadiene styrene (ABS) from a 3D printer that uses fused-deposition modeling (FDM®).

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Aditi Karandikar December 23, 2015

3D printing, also known as additive manufacturing, has been a popular topic of discussion on the COMSOL Blog and throughout the scientific community. New initiatives have furthered the capabilities of this technology, while extending its reach in various fields of research, manufacturing, and design. With the help of COMSOL Multiphysics, researchers at the Netherlands Organization for Applied Scientific Research (TNO) are investigating the promise of 3D printing in the realm of material design.

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Bridget Cunningham July 23, 2015

3D printing has emerged as a popular manufacturing technique within a number of industries. The growing demand for this method of manufacturing has prompted greater simulation research behind its processes. Engineers at the Manufacturing Technology Centre (MTC) have identified their customers’ interest in a particular additive manufacturing technique known as shaped metal deposition. By building a simulation app, the team is better able to meet the demands of their customers while delivering more efficient and effective simulation results.

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Bridget Cunningham October 13, 2014

Over the years, the size and cost of 3D printers have decreased, offering new uses for this growing technology. In response to this development, more and more teachers have begun to utilize these devices within their classrooms, helping students learn in a hands-on way.

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Bridget Cunningham August 22, 2014

In a recent blog post, we discussed the growth in 3D metal printing and its impact on manufacturing. Today, we shift our focus from the industry as a whole to a particular technique that has been instrumental in the production of metal prototypes, as well as plastic, ceramic, and glass materials — even coffee. Selective laser sintering has taken the world of 3D printing by storm.

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Bridget Cunningham August 7, 2014

In the past, we have discussed the importance of material selection in 3D printing and how it can affect the integrity of the final product. With advancements in technology, the industry has evolved from the production of more simple materials, like plastics, to those of greater difficulty, such as metals. Here, we take a more in-depth look at 3D metal printing and its potential to revolutionize the manufacturing process.

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Alexandra Foley December 4, 2013

In the past, we’ve discussed a few of the extraordinary uses of 3D printing (or additive manufacturing) technology by some innovative engineers, and even printed a few of our COMSOL models. In one of our previous posts on 3D printing, we discussed some of the limitations that this technique poses from both a consumer and manufacturing stand-point — you can only print one material at a time. Now however, as was mentioned in an article in Desktop Engineering, not only […]

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Fanny Littmarck July 25, 2013

From supporting research to creating custom prosthesis, what doesn’t 3D printing seem to promise these days? We all know 3D printing has arrived, and the technology is already being put into practice by companies and tech-savvy consumers everywhere. It seems there’s a new 3D printing success story published every day, and no matter how fascinating, it makes you wonder about the wider repercussions and limitations of 3D printing.

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Daniel Smith July 11, 2013

There are many necessary steps required in order to create a superior product. Based on some initial (or existing) design, you first need to evaluate the physical characteristics of the system. Once some level of understanding of the system has been obtained, it should then be possible to refine and optimize the design based on some reasonable choice of a figure of merit for a good design. The final stage is to prototype the design, which is where 3D printing […]

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Daniel Smith June 25, 2013

Quite often we get asked the question “can I 3D print my COMSOL model?” Well, as of version 4.3b, the answer is “yes!” This is because it is now possible to export geometries and meshes as STL files, which is one of the standard file formats for 3D printing. This allows for rapid prototyping of designs; there is no need to outsource parts to machine shops. It is quite remarkable that you could conceive, simulate, optimize, and prototype a design […]

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