Laser processing of discontinuously reinforced aluminum composites

Kenneth C. Meinert, Jr., Richard Martukanitz, R. B. Bhagat

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Aluminum matrix composites offer many improvements in structural properties over conventional aluminum alloys for design-critical components. Primary fabrication technology for the composites has been improving, leading to greater utility and decreased cost. Unfortunately, secondary processing techniques such as cutting, shaping, and joining have been lacking. Conventional machining techniques are hampered by rapid tool wear due to the wear resistance of the composites. Fusion joining techniques are often hampered by interactions between the matrix and the reinforcement material. Laser processing can offer many advantages over conventional techniques. During this investigation, aluminum alloys reinforced with alumina and silicon carbide were studied for their ability to be laser processed using a 1.5 kW CO2 laser. Laser cutting parameters were developed for cutting of both types of materials. Laser beam welding experimentation was primarily concerned with suppression of the formation of aluminum carbide in silicon carbide reinforced materials. Filler alloy additions of titanium were supplied to the weld to supersede the formation of aluminum carbide.

Original languageEnglish (US)
Title of host publicationProceedings of the American Society for Composites
PublisherPubl by Technomic Publ Co Inc
Pages168-177
Number of pages10
ISBN (Print)0877629978
StatePublished - 1992
EventProceedings of the 7th Technical Conference of the American Society for Composites - University Park, PA, USA
Duration: Oct 13 1992Oct 15 1992

Other

OtherProceedings of the 7th Technical Conference of the American Society for Composites
CityUniversity Park, PA, USA
Period10/13/9210/15/92

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Chemical Engineering (miscellaneous)
  • Building and Construction
  • Polymers and Plastics

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    Meinert, Jr., K. C., Martukanitz, R., & Bhagat, R. B. (1992). Laser processing of discontinuously reinforced aluminum composites. In Proceedings of the American Society for Composites (pp. 168-177). Publ by Technomic Publ Co Inc.