Faculty View -- Setting sights on laser-based manufacturing
In many minds, the word “laser" conjures up images of a weapon-wielding madman right out of Austin Powers, threatening his evil plot to take over the world. But in reality, lasers are high-tech tools used to manufacture many products used everyday by millions – printers, automobiles, jets – and are vital to the defense of our nation. A group of UMR researchers, working in one of the nation’s most advanced laser-research facilities, is creating new laser technologies to make everything from automobile engines to missile defense systems. 
“Lasers can be used to shoot down a missile," says Hai-Lung Tsai, professor of mechanical engineering at UMR, as well as “to engrave a name on a surface smaller than the thickness of a human hair." Currently funded by a $900,000 U.S. Defense Department grant, Tsai and his team are developing ways to use lasers to improve manufacturing processes. The project focuses on three major areas of laser-based materials processing: laser welding, micro processing and drilling, and heat-resistant surface treating.
The researchers are working with General Motors and other auto manufacturers to develop laser welding that will improve engine cradles, the aluminum fittings that house engines. “Right now, this process is used only on certain vehicles, but eventually will be used on every car they manufacture," says Tsai. “The aluminum engine cradle is lighter and allows the vehicle to get better gas mileage, and it is stronger. It’s cost-effective and we are providing a way to improve their quality."
The researchers are also working with defense contractors for the U.S. military. “It’s good for us to participate in their programs because we will be able to interact with many companies," says Tsai.
UMR has one of the most advanced laser-research facilities in the United States, with a laser lab housing three large lasers and one small laser. Lasers can cost upwards of a half million dollars, and UMR is fortunate to have such an excellent program, says Tsai. “Not many universities in the country can afford lasers. We have been very lucky to have received funding for this equipment and this research," says Tsai.