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Researchers at RMIT have found that sound vibrations can improve the micro-structure of 3D printed alloys.The team used high frequency sound waves to make the alloys more consistent and stronger than those printed conventionally. Lead author, Carmelo Todaro, highlighted that the method deals with inconsistencies in 3D printed alloys.“If you look at the microscopic structure of 3D printed alloys, they’re often made up of large and elongated crystals,” Todaro explained.“This can make them less acceptable for engineering applications due to their lower mechanical performance and increased tendency to crack during printing.”After the sound vibrations were applied during the printing process, testing showed a 12 per cent improvement in tensile strength and yield stress.“The microscopic structur...
Relese time: 2020 - 01 - 16
Views:223
Powder metallurgy was practiced long before ancient artisans learned to melt and cast iron. Egyptians made iron tools using PM techniques back in  3,000 B.C. The ancient Incans made jewelry and artifacts using precious metal powders. The first modern PM product were the tungsten filaments for electric light bulbs developed in the early 1900s. These were followed by tungsten-carbide cutting tools and self-lubricating bearings in the 1930s; automobile parts in the ’60s and ’70s;
Relese time: 2019 - 12 - 06
Views:239
There are several types of additive manufacturing and many applications, but the main principle is commonly known as 3D printing. This is where layers upon layers of material are stacked and fused on top of each other to form a product, and controlled digitally by 3D software.
Relese time: 2019 - 11 - 29
Views:237
India’s manufacturing sector is growing to become the fifth largest in the world by 2020. Aided by the Indian government’s initiative of ‘Make in India’, the nation’s vision is to make the country a global manufacturing hub. A resource-rich nation with respect to material and skilled manpower, the country seeks indigenous innovation to create a stimulating landscape of growth.
Relese time: 2019 - 11 - 11
Views:240
Cement is used in almost all outlets of construction. From schools to roads to dams to houses, cement is the second most-consumed resource in the world. Consequently, all the cement used in the world contributes to approximately eight percent of all global carbon emissions. Moreover, cement contributes to flooding, water pollution, and soil erosion. While cement industries around the world have promised to decrease their net carbon emissions, cities and countries are beginning to seek different venues for infrastructure. Most notably, Dubai looks to implement its idea of the 3D ...
Relese time: 2019 - 11 - 07
Views:270
In a development offering great promise for additive manufacturing, Princeton University researchers have created a method to precisely create droplets using a jet of liquid. The technique allows manufacturers to quickly generate drops of material, finely control their size and locate them within a 3D space.
Relese time: 2019 - 10 - 30
Views:340
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