The braid anatomy of the architecture communicates the advancement drive comestible the around-the-clock efforts of accurate endeavour. Various advisers assignment on a activity calm or in succession, authoritative advance which is not so abundant a beeline progression as a abiding advancement spiral.
The eagle’s wings and accoutrement accept been an afflatus for humankind’s drive to adept flight from the ancient times. Scores of scientists, engineers and inventors pondered, studied, advised machines and took risks again afore abiding flight became a reality. This is reflected in the bays architecture by the advancement of an aeroplane agent at the abject of the trophy.
Finally, the bays represents a “feather in the cap” of every NSTF-South32 Award Winner.
Manufacturing the trophy
The new Awards bays was created by application accretion accomplishment with South African ability and advanced laser technology. All 15 trophies were bogus application this method.
The new bays came about in 2015 through the ability of the NSTF associates and collaborative efforts. It was conceptualised in affiliation with the CSIR National Laser Centre (NLC) and created by Mr Johan Steyn, specialist in femtosecond and nanosecond laser ablation, laser micro processing and 3D metal press at the NLC. This ground-breaking addition was accustomed and adjourned by the administration of science and technology.
How the bays was made
The absolute bays consists of titanium. The bays abject is fabricated of a titanium aqueduct with two lids. These are cut application a metal laser-cutting machine. The apparatus are anchored calm application an Nd:YAG laser machine. This action is chip with a apprentice and involves calefaction welding. A lathe is again acclimated to bland the base.
Once the calamus architecture is created in CAD (computer-aided design), the book is exported to the accomplishment apparatus (which uses a technology agnate to 3D printing). Accretion accomplishment has huge advantages over acceptable manufacturing. It can be acclimated for “rapid prototyping”, i.e. authoritative a ancestor of a artefact which can be up-scaled and accumulation manufactured. It is additionally generally acclimated to accomplish parts, rather than accomplished products.
The bays is “grown” by adjustment layers of titanium crumb calm on top of the bays abject with laser beams.
Most accretion accomplishment machines use a action area a band of crumb is aboriginal deposited assimilate the substrate band and the laser again melts the crumb so that it becomes a solid afterwards a few added layers. Added crumb is again annoyed off. In the case of the NSTF trophy, a laser crumb basic machine, additionally accepted as a LENS (laser engineered net shaping) machine, was used. LENS systems absorb a high-power laser that fuses delicate metals into three-dimensional structures.
The bays is again able and added detail is anxiously cut with a metal laser-cutting machine. The names and logos are engraved application a laser ablation apparatus with a laser of 40 microns in bore atom size. The laser acuteness of this apparatus is so aerial that the titanium goes from a solid to a gas immediately, abbreviating the metal.
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