Title:
INCREASING METHOD OF DAMPING ABILITY OF METAL MATERIAL
Document Type and Number:
Japanese Patent JPS5519432
Kind Code:
A
Abstract:
PURPOSE: To increase damping ability by providing a multiplicity of grooves of the specific size on the surface of a metal material, crushing the grooves through plastic working and impregnating resin therein.
CONSTITUTION: A multiplicity of grooves of a width less than 1/10 the thickness of plate blank are provided through machining by tools on the surface of a pure Al plate blank. After the Al plate blank is rolled to crush its grooves, it is impregnated with the resin having viscoelasticity such as epoxy resin or the like. while the logarithmic damping factor of the unworked Al blank is about 1×10-2, the application of the abovementioned working increases the damping factor 20 to 50 times.
Inventors:
NAKAE HIDEO
SHIMAGUCHI TAKASHI
OZAKI TOSHINORI
AOYANAGI MASAHISA
SHIMAGUCHI TAKASHI
OZAKI TOSHINORI
AOYANAGI MASAHISA
Application Number:
JP9160078A
Publication Date:
February 12, 1980
Filing Date:
July 28, 1978
Export Citation:
Assignee:
HITACHI LTD
International Classes:
C22C1/10; B23K20/00; B23K28/00; (IPC1-7): B23K28/00