Laser metal deposition is an emerging technology for producing fully dense metallic parts. This process shows a promising future for the deposition of functionally graded steel - copper alloys. Good thermal conductivity of copper and a high wear resistance of steel can be achieved in dies and cores. However, to accomplish this, there are many issues to be resolved, such as the formation of an undesirable phase, solidification cracking, porosity at the interface and difference in thermal coefficient of expansion between steel and copper. The influences of process variables, such as laser power, laser scan speed, composition, powder flow rate, on the success of the process, should be studied.
V. Kadekar et al., "Experimental Investigation of Laser Metal Deposition of Functionally Graded Copper and Steel," Proceedings of the 15th Annual Solid Freeform Fabrication Symposium (2004, Austin, TX), pp. 198-202, University of Texas at Austin, Aug 2004.
15th Annual Solid Freeform Fabrication Symposium (2004: Aug. 2-4, Austin, TX)
Mechanical and Aerospace Engineering
Keywords and Phrases
Dense Metallic Parts; Laser Metal Deposition; Thermal conductivity
Article - Conference proceedings
04 Aug 2004