Nothing Special   »   [go: up one dir, main page]

Rajurkar et al., 1994 - Google Patents

WEDM identification and adaptive control for variable-height components

Rajurkar et al., 1994

Document ID
6221494414948127326
Author
Rajurkar K
Wang W
McGeough J
Publication year
Publication venue
CIRP annals

External Links

Snippet

Wire rupture in wire EDM is caused by high temperature due to high power density determined by discharge frequency and workpiece height. This paper reports a new WEDM adaptive control system that monitors and controls the spark frequency according to the on …
Continue reading at www.sciencedirect.com (other versions)

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/18Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/416Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control of velocity, acceleration or deceleration
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/37Measurements
    • G05B2219/37252Life of tool, service life, decay, wear estimation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/02Wire-cutting
    • B23H7/08Wire electrodes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/02Wire-cutting
    • B23H7/04Apparatus for supplying current to working gap; Electric circuits specially adapted therefor
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/50Machine tool, machine tool null till machine tool work handling
    • G05B2219/50296Tool offset by verifying piece and registrating errors
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/49Nc machine tool, till multiple
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/14Electric circuits specially adapted therefor, e.g. power supply
    • B23H7/18Electric circuits specially adapted therefor, e.g. power supply for maintaining or controlling the desired spacing between electrode and workpiece
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/45Nc applications
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/14Electric circuits specially adapted therefor, e.g. power supply
    • B23H7/20Electric circuits specially adapted therefor, e.g. power supply for programme-control, e.g. adaptive
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H1/00Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
    • B23H1/04Electrodes specially adapted therefor or their manufacture

Similar Documents

Publication Publication Date Title
Rajurkar et al. WEDM identification and adaptive control for variable-height components
Rajurkar et al. Thermal modeling and on-line monitoring of wire-EDM
Rajurkar et al. On-line monitor and control for wire breakage in WEDM
Lin et al. Improvement of machining accuracy by fuzzy logic at corner parts for wire-EDM
US5428201A (en) Method and apparatus for controlling electric discharge machining
JP4015148B2 (en) Control device for wire electric discharge machine
JP3571293B2 (en) EDM method and EDM machine for workpiece
Liao et al. Design of a fuzzy controller for the adaptive control of WEDM process
Rajurkar et al. WEDM-adaptive control with a multiple input model for indentification of workpiece height
EP2617506B1 (en) Wire electrical discharge machine carrying out electrical discharge machining by inclining wire electrode
Wang et al. Modeling and adaptive control of EDM systems
EP2490851B1 (en) Tool compensation method and device
Wang et al. Digital gap monitor and adaptive integral control for auto-jumping in EDM
EP1319459B1 (en) Wire electric-discharge machining apparatus
Yan An adaptive control system with self-organizing fuzzy sliding mode control strategy for micro wire-EDM machines
Yang et al. Hybrid adaptive control based on the characteristics of CNC end milling
AU680228B2 (en) Controller for CNC-operated machine tools
US5243166A (en) Wirecut electrical discharge machine and method of use thereof
Lee et al. Adaptive control of the WEDM process using a self-tuning fuzzy logic algorithm with grey prediction
Liao et al. On-line workpiece height estimation and its application in servo feed control of WEDM process
Pandit et al. A data-dependent systems approach to optimal microcomputer control illustrated by EDM
Tseng A systematic approach to the adaptive control of the electro-discharge machining process
CN108340033A (en) Process the EDM shaping machine intelligent depth control system and method for PCD composite sheets
Mehdizadeh Moghadam et al. Adaptive control of machining process using Electrical Discharging Method (EDM) based on Self-Tuning Regulator (STR)
Lee et al. Self-tuning fuzzy control with a grey prediction for wire rupture prevention in WEDM