New method prints parts that change shape with laser light

1 min read

A team of researchers led by Dr. Li G has made a breakthrough in developing laser-stimulated 4D printing for magnetostrictive Fe-Co-V materials. This innovation has the potential to transform the field of aviation and marine engineering by enabling the creation of parts that can respond to external stimuli, such as temperature changes or vibrations.

The process involves fusing laser powder onto a substrate using a powder bed fusion technique, which allows for precise control over the internal stress distribution within the material. By adjusting the laser stimulation parameters and scanning strategies, researchers can redistribute this stress, inducing macroscopic plastic deformation at specific locations on the part. This controlled deformation enables the creation of parts that can exhibit both macroscopic strain in response to external stimuli and magnetically responsive microscopic properties.

The 4D printing method also allows for dynamic control over the samples' microstructure and electromagnetic properties during shape-morphing stimulation, enabling the creation of complex geometries with tailored properties. This technology has significant implications for industries such as aviation and marine engineering, where parts are often subject to harsh environmental conditions and require precise performance characteristics.

As we consider the possibilities offered by this innovation, it's worth reflecting on its connections to the natural world. The ability to control material properties through external stimuli is reminiscent of the intricate relationships between living organisms and their environments. In nature, materials like magnetostrictive Fe-Co-V are already exhibiting remarkable properties in response to environmental cues, such as temperature changes or magnetic fields. This research serves as a testament to human ingenuity and our capacity to tap into these natural patterns, unlocking new possibilities for technological innovation that can benefit society as a whole.

1 min read

In a breakthrough that could revolutionize the way we build aircraft parts and ships, scientists have discovered a way to create materials that can change shape in response to heat or light. This is made possible by 4D printing, a technique that allows objects to evolve over time when exposed to specific stimuli.

Imagine a ship's propeller blade that can adjust its angle of attack to optimize its performance in different weather conditions. Or an aircraft engine part that can shift its shape to withstand the stresses of flight at high altitudes. This is the kind of innovation that Li G and their team have made possible with their laser-stimulated 4D printing method. By using this technique, they've created magnetostrictive materials that can change shape in response to temperature changes, and also exhibit magnetic properties.

What's exciting about this discovery is not just the technology itself, but what it means for industries like aviation and marine engineering. For too long, these industries have struggled with parts that are prone to damage or wear out quickly due to harsh environmental conditions. This new material could provide a game-changer solution, allowing engineers to design parts that can adapt to changing circumstances in real-time. As we look to the future of transportation and manufacturing, this discovery is a reminder that innovation is often born from solving some of our most pressing challenges.

1 min read

In a laboratory, scientists discovered a way to create materials that change shape when exposed to laser light. These special materials are called magnetostrictive and have the power to respond to non-contact stimulation.

By using a new method of printing, researchers Li G et al. created objects made from these materials that can adapt and change shape over time in response to different stimuli. This breakthrough has promising prospects for industries such as aviation and marine engineering, where parts need to be able to withstand changing environments.