A design of ultrasonic compaction tools for metal powder magnetic core of motors

Author

Kikuchi, Shinichi ; Koyama, Daisuke ; Nakamura, Kentaro

Author_Institution

Precision & Intell. Lab., Tokyo Inst. of Technol., Yokohama

fYear

2008

fDate

2-5 Nov. 2008

Firstpage

2142

Lastpage

2145

Abstract

This report presents the metal powder compaction using ultrasonic vibration for the fabrication of a three-dimensionally-shaped magnetic core. First, we describe a design of ultrasonic compaction tools using FEM. Side wall of the sample was ultrasonically excited by a radial vibration of the die, while the upper and lower punches are driven by longitudinal vibrations. Second, we present the results of compression experiment of cylindrical sample.

Keywords

compaction; dies (machine tools); electric motors; finite element analysis; magnetic cores; moulding; moulding equipment; powder metallurgy; punching; ultrasonic applications; vibrations; FEM; cylindrical sample; dies; longitudinal vibrations; lower punches; metal powder magnetic core; motors; radial vibration; three-dimensionally-shaped magnetic core fabrication; ultrasonic compaction moulding tool design; ultrasonic excitation; ultrasonic vibration; upper punches; Compaction; Frequency; Friction; Magnetic cores; Powders; Pressing; Sliding mode control; Soft magnetic materials; Transducers; Vibrations; Langevin transducer; magnetic core; metal powder compaction; ultrasonic compaction;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2008. IUS 2008. IEEE

Conference_Location

Beijing

Print_ISBN

978-1-4244-2428-3

Electronic_ISBN

978-1-4244-2480-1

Type

conf

DOI

10.1109/ULTSYM.2008.0530

Filename

4803373