TSS Technologies

Changing Metal’s Properties with Heat

It’s possible to change most of metal’s properties through heat. Electrical conductivity, magnetic charge, and even the physical structure of metal itself can be altered by controlled heating and cooling. This allows metal to be tailored to diverse, specific industry uses. Examples include heating metals to increase their electrical resistance, heating and cooling alloys in specific ways to increase or decrease the hardness, and bringing magnetic metals to the Curie temperature to eradicate their magnetism. Heat treatments fall into four separate categories: Annealing to soften metals and increase conductivity; Normalizing to create uniform composition; Hardening to improve durability; and Tempering to reduce the brittleness caused by hardening.

 

Read more at Metal Supermarkets ›

TSS Technologies

New Year Brings Substantial Improvements to 3D Printing and Additive Manufacturing

3D printing and Additive Manufacturing (AM) will benefit from finer-tuned, higher-quality parts in 2017, thanks to increased efforts to define standards and guidelines combined with advancements in the plastics and metals used for fabrication.

A 3D-printed fuel intake runner fabricated from Solvay's KetaSpire PEEK instead of the typical aluminum uses 10% glass fill. (Source: Solvay)

A 3D-printed fuel intake runner fabricated from Solvay’s KetaSpire PEEK instead of the typical aluminum uses 10% glass fill. Source: Solvay

On the standards front, Senvol is has started to maintain and offer the public a database of indexes for AM material characterization which is supplier-independent. This will eliminate the need for smaller manufacturers to duplicate existing research of materials conducted by other industries and make it easier for companies to enter AM production.

Metals printer and printing material sales are increasing at a robust rate as the production of end-production parts grows. Alcoa is among the manufacturers who have increased capacity to produce powdered metals for 3D printing at their tech center in Pittsburgh, PA. Carnegie Mellon’s NextManufacturing Center for Additive Manufacturing is now employing synchrotron-based x-ray microtomography to better inspect and improve 3d printed titanium components.

The most used materials for AM in 2015 were photopolymers and photoplastics, but this number is declining as ceramics, metals and other materials increase in popularity. Evonik and BASF are leveraging HP’s Open Platform program, to create new 3D printed parts and products, while Solvay is developing polymer-based materials to replace metal parts.

Read more at Design News ›

TSS Technologies

Helium Discovery

heliumNews broke recently of the discovery of a huge pocket of helium in the Tanzanian East African Rift Valley, calming fears of a shortage of the useful element. Already, a Canadian city has banned filling balloons with the non-renewable resource. Helium has a variety of industrial uses, from semiconductors to medical equipment to propulsion and lasers. Now scientists from Oxford and Durham Universities, working with Norwegian company Helium One, have announced that they located shallow pockets filled with the valuable gas under rocks in a volcanically active valley. The pocket could be as large as 54 Billion Cubic Feet (BCf), compared to total known reserves in the USA of 153 BCf. The findings are being presented this week at the Goldschmidt geochemistry conference in Yokohama, Japan.

For more information, visit: http://www.eurekalert.org/pub_releases/2016-06/uoo-hhd062416.php