Development of an Innovative Laser-Assisted Coating Process for Extending Lifetime of Metal Casting Dies. Final Report Metadata

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  • Main Title Development of an Innovative Laser-Assisted Coating Process for Extending Lifetime of Metal Casting Dies. Final Report


  • Author: Gonvindaraju, Madhav Rao
    Creator Type: Personal


  • Sponsor: United States. Department of Energy. Office of Energy Research.
    Contributor Type: Organization
    Contributor Info: USDOE Office of Energy Research (ER) (United States)


  • Name: Karta Technologies, Inc., San Antonio, TX (United States)
    Place of Publication: United States


  • Creation: 1999-10-18


  • English


  • Content Description: Die casting dies used in the metal casting industry fail due to thermal fatigue cracking accompanied by the presence of residual tensile stresses, corrosion, erosion and wear of die surfaces. This phase 1 SBIR Final Report summarize Karta Technologies research involving the development of an innovative laser coating technology for metal casting dies. The process involves depositing complex protective coatings of nanocrystalline powders of TiC followed by a laser shot peening. The results indicate a significant improvement in corrosion and erosion resistance in molten aluminum for H13 die casting die steels. The laser-coated samples also showed improved surface finish, a homogeneous and uniform coating mircrostructure. The technology developed in this research can have a significant impact on the casting industry by saving the material costs involved in replacing dies, reducing downtime and improving the quality.
  • Physical Description: 44 p.


  • Keyword: Cracks
  • Keyword: Dies
  • STI Subject Categories: 36 Materials Science
  • Keyword: Thermal Fatigue
  • Keyword: Titanium Carbides
  • STI Subject Categories: 32 Energy Conservation, Consumption, And Utilization
  • Keyword: Casting Molds
  • Keyword: Erosion
  • Keyword: Service Life
  • Keyword: Protective Coatings
  • Keyword: Surface Coating
  • Keyword: Laser Beam Machining
  • Keyword: Steels
  • Keyword: Corrosion Resistance
  • Keyword: Shot Peening


  • Other Information: PBD: 18 Oct 1999


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report


  • Text


  • Report No.: NONE
  • Grant Number: FG03-98ER82604
  • DOI: 10.2172/755839
  • Office of Scientific & Technical Information Report Number: 755839
  • Archival Resource Key: ark:/67531/metadc712154


  • Display Note: OSTI as DE00755839
  • Display Note: Medium: P; Size: 44 pages