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Roan Kirwin Thesis.pdf (79.09 MB)

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Modification and adaptation of WEDM wire-lag models for use in production environments

Kirwin, Roan
http://orcid.org/0000-0001-9680-9995
http://rave.ohiolink.edu/etdc/view?acc_num=miami1564759778566713

Abstract Details

2019, Master of Science, Miami University, Mechanical and Manufacturing Engineering.
Wire Electrical Discharge Machining (WEDM) is a type of machining that uses electric discharges between a wire and a work piece to erode electrically conductive material. WEDM suffers from a phenomenon called wire lag. Wire lag is when the wire electrode bends into an arc and the center of the wire is pushed in the opposite direction of machining. The lag is generally very small but, when extremely tight tolerances on curved or sharply angled geometry are desired, can be a large source of error. Lag is caused by both electromagnetic forces and explosive forces acting between the wire and the workpiece. This research investigates the feasibility of a program to modify machining G-code to compensate for wire lag at sharp corners. A model of wire lag was demonstrated and methods for developing modifications to incorporate both surface feed and eliminate the need for a scanning electron microscope measurements to minimize wire lag have been discussed. This was done by demonstrating a method for relating pulse on time and voltage with each plasma discharge’s area. Lastly an outline for a program that compensates for wire lag at thresholded angles was shown.
Muhammad Jahan (Advisor)
James Moller (Advisor)
Mark Sidebottom (Committee Member)
42 p.
Mechanical Engineering
WEDM; Wire-EDM; EDM; profile accuracy; advanced manufacturing; G-code postprocessor

Recommended Citations

Citations

  • Kirwin, R. (2019). Modification and adaptation of WEDM wire-lag models for use in production environments [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1564759778566713

    APA Style (7th edition)

  • Kirwin, Roan. Modification and adaptation of WEDM wire-lag models for use in production environments. 2019. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1564759778566713.

    MLA Style (8th edition)

  • Kirwin, Roan. "Modification and adaptation of WEDM wire-lag models for use in production environments." Master's thesis, Miami University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=miami1564759778566713

    Chicago Manual of Style (17th edition)

miami1564759778566713
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© 2019, all rights reserved.
This open access ETD is published by Miami University and OhioLINK.