Design of Completely Inserted and Feeding Electrode for Female Screw in Electrochemical Finishing

Pa, Pai Shan

doi:10.4028/www.scientific.net/kem.329.231

Cited by 19 publications

(16 citation statements)

References 9 publications

(5 reference statements)

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“…However, the major difficulty of electrochemical finishing is the removal of the electrolytic products from the gap between the tool electrode and the workpiece. Thus, the design of finishing-tool is the most important factor [6][7].…”

Section: Introductionmentioning

confidence: 99%

Design of a Simultaneous Module Using Burnishing and Electrofinishing on Hole-Wall Surface

2009

KEM

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This study discusses a method for increasing the efficiency and speed with which an improvement in surface roughness of a hole-wall surface can be achieved. The surface after traditional machining is discussed as well as a method for finishing the hole-wall surface using a design of finish-tool that includes a nonconductive knothole-form burnishing-tool and a ring electrode to execute simultaneous burnishing and electrofinishing (SBEF). By the dual and synchronous effect of the electrode and the burnishing-tool a superior hole-wall finish is achieved. In the experiment, the use of a small arc rounding radius and a thin finish-tool is advantageous to the finishing effect. A high rotational speed of the finish-tool produces a better finish. A high current and a faster finishing tool feed is also effective in gaining a rapid improvement of the roughness of the hole-wall surface and is recommended from the results of the current study.

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Section: Introductionmentioning

confidence: 99%

Design of a Simultaneous Module Using Burnishing and Electrofinishing on Hole-Wall Surface

2009

KEM

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“…The arrangement of experimental conditions produced a good surface quality for the workpiece. Varies types of electrodes were also developed for electropolishing, including the borer-shape and screw-form However, the cost and the compensation design of tool electrodes are major difficulties of electropolishing that also exit (13) - (14) .…”

Section: Introductionmentioning

confidence: 99%

Mechanism Design of Magnetic-Assistance in Surface Finishing of End-Turning

2008

JAMDSM

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A new mechanism design using a magnetic force with high efficiency to assist discharging dregs out of the electrode gap during the electrochemical finishing on the surface finish process that follows end-turning is investigated in the current study. Through simple equipment attachment, magnetic-assistance during electrochemical finishing can follow the cutting process on the same machine. This process can be used for various end-turning operations. Among the factors affecting electrochemical finishing, the magnetic-assistance is primarily discussed. The experimental parameters are chemical composition and concentration of the electrolyte, flow rate of the electrolyte, initial gap width, current rating, on/off period of pulsed current, feed rate of workpiece, rotational speed of workpiece and electrode, magnetic strength, and distance between the two magnets. A higher current rating with magnetic-assistance reduces the finishing time and avoids the difficulty of dreg discharge. Providing a large magnetic field intensity or using a small distance between the two magnets produces a larger magnetic force and discharge ability and better finishing. A large rotational speed of the workpiece and electrode produces better finishing. Pulsed direct current can slightly promote the effect of electrochemical finishing, but the current rating needs to be increased. The magnetic-assistance during the electrochemical finishing process makes a great contribution in a short time by making the surface of the workpiece smooth and bright.

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“…Good surface quality of the workpiece was obtained through the arrangement of the experimental conditions. Varies types of electrode were also developed for electropolishing, including the borer-shape and screw-form (12)(13)(14).…”

Section: Introductionmentioning

confidence: 99%

Mechanism Design of Rotational Magnetic Assistance Electrochemical Finishing on Freeform Surface

2008

ECS Trans.

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The current study investigates a new finishing process that uses a rotational magnetic assistance with high efficiency to assist discharging dregs from the electrode gap during the electrochemical finishing on freeform surfaces. The factors affecting the effects of the magnetic assistance in electrochemical finishing are primarily discussed. This study used Taguchi's Method to analyze the combination of optimal parameters. The experimental parameters use four factors and three levels to measure the surface roughness of the magnetic-assistance in the electrochemical finishing. These four factors include current density, magnetic strength, the distance between the two magnets, and rotational speed of the magnets. For the design system, the large current density with magnetic assistance can circumvent the difficulty of dreg discharge, thus reducing the finishing time. Smaller distances between the two magnets or larger magnetic field intensities provide larger magnetic strength, discharge ability and a better finish. A higher rotational speed of the magnets produced a better finish. The average effect of the magnetic assistance was greater than the pulsed current while the machining time did not need to be prolonged by the off time. The magnetic assistance in electrochemical finishing needing a short amount of time to make the freeform-surfaces smooth and bright is recommended.

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Design of Completely Inserted and Feeding Electrode for Female Screw in Electrochemical Finishing

Cited by 19 publications

References 9 publications

Design of a Simultaneous Module Using Burnishing and Electrofinishing on Hole-Wall Surface

Design of a Simultaneous Module Using Burnishing and Electrofinishing on Hole-Wall Surface

Mechanism Design of Magnetic-Assistance in Surface Finishing of End-Turning

Mechanism Design of Rotational Magnetic Assistance Electrochemical Finishing on Freeform Surface

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