Title

Performance Benchmarking for Laser Weld Repair of Die Components

Abstract

The Laser Aided Manufacturing Process (LAMP) lab at the University of Missouri Rolla is currently developing a laser-based part repair system especially for steel dies and molds. The system combines a machining center with a laser deposition center. This hybrid machining-laser deposition repair process reduces the limitations of typical welding repair process such as large heat affected zones, shape deformation etc. In addition, the bonding strength and other mechanical properties of the repaired part using hybrid repair process are better than the process using welding repair process. This process has been used to successfully repair a worn out die core. Due to a faster cooling rate, the hardness of deposited samples is higher than that of welded samples. The fracture surface analysis shows that the deposited samples retain some ductility, indicating that the hardness can be improved via heat treatment. Copyright © 2006 ASM International®.

Department(s)

Materials Science and Engineering

Second Department

Mechanical and Aerospace Engineering

Keywords and Phrases

H13 Tool Steel; Hybrid System; Laser Cladding; Repair

Library of Congress Subject Headings

Microstructure

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2006 ASM International, All rights reserved.

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