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Title: Method and apparatus for electrospark deposition

Abstract

A method and apparatus for controlling electrospark deposition (ESD) comprises using electrical variable waveforms from the ESD process as a feedback parameter. The method comprises measuring a plurality of peak amplitudes from a series of electrical energy pulses delivered to an electrode tip. The maximum peak value from among the plurality of peak amplitudes correlates to the contact force between the electrode tip and a workpiece. The method further comprises comparing the maximum peak value to a set point to determine an offset and optimizing the contact force according to the value of the offset. The apparatus comprises an electrode tip connected to an electrical energy wave generator and an electrical signal sensor, which connects to a high-speed data acquisition card. An actuator provides relative motion between the electrode tip and a workpiece by receiving a feedback drive signal from a processor that is operably connected to the actuator and the high-speed data acquisition card.

Inventors:
; ; ;
Issue Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175184
Patent Number(s):
6835908
Application Number:
10/742,706
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Classifications (CPCs):
C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Bailey, Jeffrey A., Johnson, Roger N., Park, Walter R., and Munley, John T. Method and apparatus for electrospark deposition. United States: N. p., 2004. Web.
Bailey, Jeffrey A., Johnson, Roger N., Park, Walter R., & Munley, John T. Method and apparatus for electrospark deposition. United States.
Bailey, Jeffrey A., Johnson, Roger N., Park, Walter R., and Munley, John T. Tue . "Method and apparatus for electrospark deposition". United States. https://www.osti.gov/servlets/purl/1175184.
@article{osti_1175184,
title = {Method and apparatus for electrospark deposition},
author = {Bailey, Jeffrey A. and Johnson, Roger N. and Park, Walter R. and Munley, John T.},
abstractNote = {A method and apparatus for controlling electrospark deposition (ESD) comprises using electrical variable waveforms from the ESD process as a feedback parameter. The method comprises measuring a plurality of peak amplitudes from a series of electrical energy pulses delivered to an electrode tip. The maximum peak value from among the plurality of peak amplitudes correlates to the contact force between the electrode tip and a workpiece. The method further comprises comparing the maximum peak value to a set point to determine an offset and optimizing the contact force according to the value of the offset. The apparatus comprises an electrode tip connected to an electrical energy wave generator and an electrical signal sensor, which connects to a high-speed data acquisition card. An actuator provides relative motion between the electrode tip and a workpiece by receiving a feedback drive signal from a processor that is operably connected to the actuator and the high-speed data acquisition card.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {12}
}

Patent:

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