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HomeTechIISc Researchers Find Low-Cost Method To Produce Metal Powders For 3D Printing

IISc Researchers Find Low-Cost Method To Produce Metal Powders For 3D Printing

A staff of researchers led by Koushik Viswanathan, Assistant Professor within the Division of Mechanical Engineering on the Indian Institute of Science (IISc), has found an alternate technique to supply steel powders.

The invention may have vital implications on additive manufacturing (AM) methods, often known as 3D printing and biomedical implant manufacturing.


AM creates objects by layering materials on prime of one other. Steel powder is the foremost supply materials and is primarily produced utilizing atomisation, a way wherein a molten steel stream is damaged up into tremendous droplets utilizing air or water jets.

Regardless of its widespread use, atomisation produces low yields, is dear and is proscribed in materials it could possibly deal with.

IISc defined that the extracted particles, referred to as swarf, is often thrown as a waste product within the steel grinding enterprise. It often has a stringy look, much like steel chips, however it could possibly additionally produce fully spherical particles.

Viswanathan’s staff found that these powdered steel entities are shaped on account of melting on the floor layer brought on by excessive warmth from oxidation.

In order that they developed the tactic to supply large volumes of spherical powders, that are collected after which processed to be utilised as AM inventory materials.

Within the context of steel AM, their analysis signifies that these particles carry out in addition to industrial fuel atomised powders.


Priti Ranjan Panda, a PhD pupil at IISc’s Centre for Product Design and Manufacturing and one of many authors of the research, stated: “We have now an alternate, extra economical and inherently scalable path to make steel powders. The standard of the ultimate powders seems to be very aggressive in comparison with typical fuel atomised powders.”

Citing the findings, Viswanathan acknowledged that steel AM has just lately attracted loads of consideration as a result of, by definition, it permits for lots of customisation and design freedom.

However based on him, “The massive price of inventory steel powders has been the stumbling block. We hope that our work will open new doorways to creating cheaper and extra accessible steel powders.”

Harish Singh Dhami, a PhD pupil on the Division of Mechanical Engineering and co-author of the newest research, defined that chopping the value of the AM course of can broaden the vary of fabric obtainable in conditions such because the manufacture of biomedical implants, which may change into extra inexpensive and accessible.

As per IISc, the researchers consider that abrasion-based steel powder manufacturing has potential in different high-performance functions corresponding to plane engines, the place a excessive diploma of specificity and class is required.

Steel powders are manufactured at an atomisation manufacturing facility, which necessitates transportation for casting and recycling, leading to a big provide chain.

This works for widespread metals corresponding to aluminium, however for key minerals like tantalum and lithium, the place extraction alone is a troublesome course of, having a scalable course of for producing steel powders could be preferable, stated the lead researcher.

“Then, in precept, your complete provide chain might be housed inside a single facility — a risk that their approach may provide,” he added.

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