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

Abstract

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.

Authors:
Publication Date:
Research Org.:
Karta Technologies, Inc., San Antonio, TX (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
755839
DOE Contract Number:  
FG03-98ER82604
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 18 Oct 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; CASTING MOLDS; THERMAL FATIGUE; CRACKS; SURFACE COATING; SERVICE LIFE; TITANIUM CARBIDES; LASER BEAM MACHINING; CORROSION RESISTANCE; DIES; EROSION; PROTECTIVE COATINGS; SHOT PEENING; STEELS

Citation Formats

Madhav Rao Gonvindaraju. Development of an Innovative Laser-Assisted Coating Process for Extending Lifetime of Metal Casting Dies. Final Report. United States: N. p., 1999. Web. doi:10.2172/755839.
Madhav Rao Gonvindaraju. Development of an Innovative Laser-Assisted Coating Process for Extending Lifetime of Metal Casting Dies. Final Report. United States. doi:10.2172/755839.
Madhav Rao Gonvindaraju. Mon . "Development of an Innovative Laser-Assisted Coating Process for Extending Lifetime of Metal Casting Dies. Final Report". United States. doi:10.2172/755839. https://www.osti.gov/servlets/purl/755839.
@article{osti_755839,
title = {Development of an Innovative Laser-Assisted Coating Process for Extending Lifetime of Metal Casting Dies. Final Report},
author = {Madhav Rao Gonvindaraju},
abstractNote = {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.},
doi = {10.2172/755839},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {10}
}