Title :
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
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;
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
DOI :
10.1109/ULTSYM.2008.0530
