Hyderabad
Wednesday, August 06, 2025
Indian scientists have unveiled a new way to cut and shape some of the toughest metals that are vital for airplanes, nuclear reactors, and space vehicles, making manufacturing faster, cheaper, and more reliable. This breakthrough, called Laser Assisted Turning (LAT), means complicated parts used in industries like aerospace and power generation can soon be made with much less hassle.
The problem lies in the metals themselves. Known as superalloys, for example, Inconel 625, these materials are incredibly strong, can handle high temperatures, and don’t easily corrode or rust. That’s why they’re used in things like jet engines, heat exchangers, and even deep sea equipment. However, these very qualities also make them extremely difficult to cut or shape using regular machines. Cutting tools usually wear down quickly and the finished surfaces lack the smoothness needed for high performance parts, making the process slow and costly.
Now, researchers at the International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), under India’s Department of Science and Technology, have developed a hybrid technique that makes things much simpler. Laser Assisted Turning works by using a powerful laser to heat the metal just ahead of the cutting tool, making the tough metal briefly softer right where it matters. This means the cutting process takes less effort, the wear and tear on cutting tools is greatly reduced, and the end result is much smoother and more precise.
Tests showed that, with LAT, the force needed to cut these hard metals dropped by 69%, tool wear was almost halved, and the surface finish improved by over 50% compared to traditional methods. Special coatings on the cutting tools, such as CrAlSiN nanocomposite, also played a key role, helping the tools last longer even at high temperatures.
This development doesn’t just help make better turbine blades or automotive parts, it also fits into India’s broader strategy to increase home grown manufacturing, improve energy efficiency, and move towards cleaner production. Experts believe using LAT could soon become common in factories making high tech equipment, making products safer, lighter, and more affordable for everyone.
The problem lies in the metals themselves. Known as superalloys, for example, Inconel 625, these materials are incredibly strong, can handle high temperatures, and don’t easily corrode or rust. That’s why they’re used in things like jet engines, heat exchangers, and even deep sea equipment. However, these very qualities also make them extremely difficult to cut or shape using regular machines. Cutting tools usually wear down quickly and the finished surfaces lack the smoothness needed for high performance parts, making the process slow and costly.
Now, researchers at the International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), under India’s Department of Science and Technology, have developed a hybrid technique that makes things much simpler. Laser Assisted Turning works by using a powerful laser to heat the metal just ahead of the cutting tool, making the tough metal briefly softer right where it matters. This means the cutting process takes less effort, the wear and tear on cutting tools is greatly reduced, and the end result is much smoother and more precise.
Tests showed that, with LAT, the force needed to cut these hard metals dropped by 69%, tool wear was almost halved, and the surface finish improved by over 50% compared to traditional methods. Special coatings on the cutting tools, such as CrAlSiN nanocomposite, also played a key role, helping the tools last longer even at high temperatures.
This development doesn’t just help make better turbine blades or automotive parts, it also fits into India’s broader strategy to increase home grown manufacturing, improve energy efficiency, and move towards cleaner production. Experts believe using LAT could soon become common in factories making high tech equipment, making products safer, lighter, and more affordable for everyone.
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