Cummins and Oak Ridge develop thermal spray method to repair truck engines

September 10, 2017
Source: ASM International

Diesel engine maker Cummins Inc., Columbus, Ind., is working with Oak Ridge National Laboratory to develop a material to repair heavy-duty vehicle engines damaged by a million miles of extreme conditions under the hood. Rather than replacing an engine's cylinder head, the research team "scooped out" the worn section and used additive manufacturing to deposit a high-performance alloy with properties better than the original casting.

The goal of the process, developed at DOE's Manufacturing Demonstration Facility at ORNL, is to save energy while extending the life of the engine and making it stronger.

"We're decreasing the engine's thermal conductivity, which holds heat in longer, and turning it into increased efficiency," said Nikhil Doiphode, Cummins R&D engineer. "While these are not brand-new engines, we're striving to make them better than new."

www.ornl.gov

 

Subject Classifications

Industries and Applications | Automobiles and Ground Transportation

Materials Processing and Treatment | Additive Manufacturing

Materials Processing and Treatment | Powder Metallurgy

Materials Processing and Treatment | Thermal Spray Technology