Electrolytic In-Process Dressing (ELID) Grinding Technique for Ultraprecision Mirror Surface Machining.

This paper is a report on the process of developing a desktop machine tool to be used in “Micro Workshops.” It incorporates emerging technologies for the production of “micro parts and components” as a newMonotsukuriThe resultant desktop machine tool was developed after designing structures which simultaneously meet both requirements of lighter weight and sufficient rigidity and which prove to be capable of producing mirror quality finish using the electrolytic in-process dressing (ELID) grinding .system.In order to verify the successful achievement of mirror surface grinding, a fine grain (#8000) abrasive grinding wheel used in the ELID grinding system was employed to generate an aspherical surface by cross grinding technique after completion of development on the aforementioned simultaneous achievement of lightness and rigidity for mainframe structure of the machine.The grinding wheels used in this experiment were a grinding wheel of #1200 diamond abrasive grain bonded with cast iron and another type of grinding wheel of #8000 cerium oxide abrasive grain bonded with metal resin.As the basic experiment, a silica-glass workpiece was ground and finished using the cross-grinding technique. The result showed that stable grinding and finishing operations can be achieved without burning during grinding even by using a very fine abrasive grain of #8000 or higher.

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Development of Small Tool by Micro Fabrication System Applying Elid Grinding Technique

Initiatives of Precision Engineering at the Beginning of a Millennium ◽

10.1007/0-306-47000-4_96 ◽

2005 ◽

pp. 491-495 ◽

Cited By ~ 2

Author(s):

Yoshihiro Uehara ◽

Hitoshi Ohmori ◽

Yutaka Yamagata ◽

Sei Moriyasu ◽

Weimin Lin ◽

...

Keyword(s):

Micro Fabrication ◽

Elid Grinding ◽

Grinding Technique ◽

Small Tool

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Mirror Surface Machining of Steel by Elliptical Vibration Cutting with Diamond-Coated Tools Sharpened by Pulse Laser Grinding

International Journal of Automation Technology ◽

10.20965/ijat.2018.p0573 ◽

2018 ◽

Vol 12 (4) ◽

pp. 573-581 ◽

Cited By ~ 1

Author(s):

Hiroshi Saito ◽

Hongjin Jung ◽

Eiji Shamoto ◽

Shinya Suganuma ◽

Fumihiro Itoigawa ◽

...

Keyword(s):

Low Cost ◽

Mirror Surface ◽

Elliptical Vibration Cutting ◽

Surface Machining ◽

Vibration Cutting ◽

Die Steel ◽

Elliptical Vibration ◽

Coated Tools ◽

Ultrasonic Elliptical Vibration ◽

Rapid Tool

Low-cost mirror surface machining of die steel is proposed in this research by applying elliptical vibration cutting with diamond-coated tools sharpened by pulse laser grinding (PLG). It is well known that conventional diamond cutting cannot be applied to die steel owing to rapid tool wear. Several attempts have been reported to prevent rapid tool wear, such as using ultrasonic elliptical vibration cutting. The ultrasonic elliptical vibration cutting developed by the authors to achieve mirror surface finish on die steel and prevent rapid wear is widely used in the industry. However, high-cost single-crystalline diamond tools that are finished using a time-consuming lapping process are required to obtain mirror surfaces. The authors, meanwhile, have recently developed the PLG process to efficiently sharpen the cutting edges of hard tool materials such as cubic boron nitride. Therefore, a practical mirror surface machining method for die steel is proposed in this research, namely elliptical vibration cutting with low-cost diamond-coated tools sharpened by the efficient PLG process. The results of the machining experiments confirmed that practical mirror surface machining of die steel can be achieved by the proposed method.

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Optimization of Cutting Edge Truncation Depth for Ultrasonically Assisted Grinding to Finish Mirror Surface

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.76-78.88 ◽

2009 ◽

Vol 76-78 ◽

pp. 88-93 ◽

Cited By ~ 3

Author(s):

Keisuke Hara ◽

Hiromi Isobe ◽

Akira Kyusojin

Keyword(s):

Ground Surface ◽

Optimization Techniques ◽

Cutting Edge ◽

Mirror Surface ◽

Skilled Workers ◽

Ultrasonic Oscillation ◽

Oscillation Effect ◽

Grinding Conditions ◽

Grinding Technique ◽

Face Grinding

High precision mold grinding technique to obtain mirror surface is required which realizes minimization or omission of final polishing by skilled workers. In the previous reports, ultrasonic diamond grinding experiments were carried out to confirm ultrasonic oscillation effect for die steel face grinding. Smooth and glossy surfaces were obtained successfully and little abrasive worn out was found. In the above techniques require cutting edge truncation because the cutting edge shape of a tool affects the ground surface resulting from transcription of cutting edge. This paper describes optimization techniques for the cutting edge truncation of diamond electroplated tools which are used in ultrasonically assisted grinding. Experiments were carried out to confirm truncation effects on the ground surface and grinding force. It was confirmed that roughness was proportional to inverse of thrust force. Minimum roughness in grinding conditions were estimated from the proportional diagrams. The minimum roughness shows limit of roughness on an each grinding condition.

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