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Plasma Cutter Versus Other Methods Of Welding And Cutting

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Plasma Cutter Versus Other Methods Of Welding And Cutting. Brandon Hale. ELEC 6750. Spring 2004 ... Bohlen, K. Ed, et al. 'Hypertherm's plasma cutting history. ... – PowerPoint PPT presentation

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Title: Plasma Cutter Versus Other Methods Of Welding And Cutting


1
Plasma Cutter Versus Other Methods Of Welding And
Cutting
  • Brandon Hale
  • ELEC 6750
  • Spring 2004

2
Questions
  • In which application is a plasma arc welder not
    used?
  • How does one achieve laser like cuts to a plasma
    cutter?

3
Outline
  • Definition Of Terms
  • History
  • Companies Switching To Plasma Cutters
  • Plasma Cutting Variables
  • Adding Laser Like Cuts To A Plasma Cutter
  • Aerospace Applications

4
Definition Of Terms
  • TIG Tungsten Inert Gas
  • LBW Laser Beam Welding
  • EBW Electron Beam Weld
  • PAW Plasma Arc Welder

5
History
  • 1950 TIG Welding
  • 1957 Conventional Plasma Cutting
  • 1962 Dual flow Plasma Arc
  • 1963 Air Plasma Cutting
  • 1968 Water Shield Plasma Cutting
  • 1972 Water Muffler For Plasma Cutting

Bohlen, K. Ed, et al. Hypertherm's plasma
cutting history. http//www.hypertherm.com/techno
logy/plasma_history.html
6
History
  • 1977 Underwater Cutting
  • 1980 Low Amp Plasma Cutting
  • 1983 Oxygen Plasma Cutting
  • 1985 Oxygen Injected Plasma Cutting
  • 1990 High Density Plasma Cutting

Bohlen, K. Ed, et al. Hypertherm's plasma
cutting history. http//www.hypertherm.com/techno
logy/plasma_history.html
7
Companies Switching To Plasma Cutters
  • Benefits of Plasma Cutting
  • Faster Cutting Speed
  • No Pre-heat Cycle
  • Smaller Cut Width
  • Smaller Heat Affected Zone
  • Portable Unit
  • Cost

Miller Electric Mfg. Co. Plasma Cutting Buyers
Guide. Illinois, 2004
8
Companies Switching To Plasma Cutters
  • lets you plasma cut at any location, on any job
    site and in any country without worrying about
    opening and manually linking the machine or
    damaging the machine from incorrect hookup.
  • -Miller Electric Mfg Co

Miller Electric Mfg. Co. Plasma Cutting Buyers
Guide. Illinois, 2004
9
Plasma Cutting Variables
  • Voltage
  • Nozzle
  • Air Flow Rate

S. Ramakrishan, M. Gershenzon, F. B. Polivka, T.
N. Kearney, and M. W. Rogozinski, Plasma
Generation for the Plasma Cutting Process, IEEE
Trans. on Plasma Science, Vol. 25, p.937-946,
1997.
10
Adding Laser Like Cuts To A Plasma Cutter
  • One Input
  • 2.45 GHz Microwave Continuous-Wave Magnetron
    Power Supply

A. Al-Shamma, R. Wyllie, J. Lucas, and J. D. Yan,
Atmospheric Microwave Plasma Jet for Material
Processing, IEEE Trans. on Plasma Science, Vol.
30, p.1863-1871, 2002.
11
Adding Laser Like Cuts To A Plasma Cutter
  • A. Al-Shamma, R. Wyllie, J. Lucas, and J. D. Yan,
    Atmospheric Microwave Plasma Jet for Material
    Processing, IEEE Trans. on Plasma Science, Vol.
    30, p.1863-1871, 2002.

12
Adding Laser Like Cuts To A Plasma Cutter
  • Benefit
  • The cost savings means that the microwave plasma
    torch is a better choice for material cutting and
    welding when precision is not critical.
  • - Ahmed I. Al-Shammaa

A. Al-Shamma, R. Wyllie, J. Lucas, and J. D. Yan,
Atmospheric Microwave Plasma Jet for Material
Processing, IEEE Trans. on Plasma Science, Vol.
30, p.1863-1871, 2002.
13
Aerospace Applications
  • TIG
  • Acceptable Welds For Copper
  • Excessive Porosity And Poor Fusion For Aluminum
  • EBW
  • No Fusion Between Aluminum Weld Elements

K. Richardson, B. Stein, P. Shah, and N. Isaacs,
Process Development of Electrode-Tab Welds for
Aerospace, Lithium-Ion Cells, IEEE Conference,
Vol. 1, p.651-658, 2000.
14
Aerospace Applications
  • PAW
  • Best Fusion On Aluminum
  • Inconsistent Welds
  • LBW
  • Best Weld For Aerospace Applications
  • Requires Oxidation of Aluminum
  • No Preparation For Copper

K. Richardson, B. Stein, P. Shah, and N. Isaacs,
Process Development of Electrode-Tab Welds for
Aerospace, Lithium-Ion Cells, IEEE Conference,
Vol. 1, p.651-658, 2000.
15
Conclusion
  • Plasma Cutters Have Led Companies In A Direction
    To Benefit From Costs Savings As Well As Quicker
    Project Completion Times
  • However, Plasma Cutting Yields Numerous Benefits,
    It Is Not Applicable For All Jobs

16
Questions and Answers
  • In which application is a plasma arc welder not
    used?
  • Aerospace
  • How does one achieve laser like cuts to a plasma
    cutter?
  • Take a microwave continuous-wave magnetron for
    the power supply

17
References
  • Bohlen, K. Ed, et al. Hypertherm's plasma
    cutting history. http//www.hypertherm.com
    /technology/plasma_history.html
  • Miller Electric Mfg. Co. Plasma Cutting Buyers
    Guide. Illinois, 2004
  • A. Al-Shamma, R. Wyllie, J. Lucas, and J. D. Yan,
    Atmospheric Microwave Plasma Jet for Material
    Processing, IEEE Trans. on Plasma Science, Vol.
    30, p.1863-1871, 2002.
  • S. Ramakrishan, M. Gershenzon, F. B. Polivka, T.
    N. Kearney, and M. W. Rogozinski, Plasma
    Generation for the Plasma Cutting Process, IEEE
    Trans. on Plasma Science, Vol. 25, p.937-946,
    1997.
  • K. Richardson, B. Stein, P. Shah, and N. Isaacs,
    Process Development of Electrode-Tab Welds for
    Aerospace, Lithium-Ion Cells, IEEE Conference,
    Vol. 1, p.651-658, 2000.
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