Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


Kottman Thesis - Final.pdf (6.51 MB)

ETD Abstract Container

Abstract Header

Additive Manufacturing of Maraging 250 Steels for the Rejuvenation and Repurposing of Die Casting Tooling

Kottman, Michael Andrew
http://rave.ohiolink.edu/etdc/view?acc_num=case1416854466

Abstract Details

2015, Master of Sciences (Engineering), Case Western Reserve University, Materials Science and Engineering.
In this study, a number of established additive manufacturing processes were evaluated for their suitability repairing high-pressure die cast tooling. The processes included in this study are laser hot wire (LHW), electron beam freeform fabrication (EBF3), gas metal arc welding (GMAW), Laser Engineered Net Shaping (LENS®), and direct metal deposition (DMD). To determine each process’ suitability, blocks of maraging 250 steel were deposited on H-13 base metal. The results show that the maraging deposits are capable of providing good strength (>160 ksi), toughness (>15 ft-lbs), and hardness (45 HRC) for die tooling applications, but care must be taken to limit the occurrence of defects, particularly porosity. Of the processes tested, the LHW, DMD, and LENS® processes had the best balance of deposit properties. However, additional work will be required to optimize the processing parameters for each process.
David Schwam (Advisor)
John Lewandowski (Committee Member)
Gerhard Welsch (Committee Member)
120 p.
Engineering; Materials Science; Metallurgy
Additive Manufacturing; Maraging; Die Casting; Repair; Laser Hot Wire; LHW; Direct Metal Deposition; DMD; Gas Metal Arc Welding; GMAW; Rapid Pulsed Arc; RPA; Laser Engineered Net Shaping; LENS; Electron Beam Freeform Fabrication; EBF3;

Recommended Citations

Citations

  • Kottman, M. A. (2015). Additive Manufacturing of Maraging 250 Steels for the Rejuvenation and Repurposing of Die Casting Tooling [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1416854466

    APA Style (7th edition)

  • Kottman, Michael. Additive Manufacturing of Maraging 250 Steels for the Rejuvenation and Repurposing of Die Casting Tooling. 2015. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1416854466.

    MLA Style (8th edition)

  • Kottman, Michael. "Additive Manufacturing of Maraging 250 Steels for the Rejuvenation and Repurposing of Die Casting Tooling." Master's thesis, Case Western Reserve University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=case1416854466

    Chicago Manual of Style (17th edition)

case1416854466
2,475
© 2014, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.