Oak Ridge National Labs
Cummins Inc.
Q. Han and K.L. More
M.R. Myers, M.L. Warwick, Y.C. Chen

Goals and Objectives: Develop technologies for the reinforcement of aluminum
castings with steel inserts.

Coating of the Steel Pins

Cast-in Method

Bond Quality

Defect Free Bonding
Metallurgical bond between the steel and the aluminum casting.

Bond Strength

As-cast Conditions
T6 Heat Treatable
Hardness of the Bond Layer


Research sponsored by the US Department of Energy, Assistant Secretary for Energy Efficiency and
Renewable Energy, Office of Transportation Technology, Lightweight Vehicle Materials Program,
under contract DE-AC05-00OR22725, with UT-Battelle, LLC.