Verfahren zur Herstellung eines Schwingkörpers

摘要

A vibrator (10) is formed into a polygonal prism shape such as a regular triangular prism shape. The vibrator (10) is manufactured by firing powders such as an identity constant metal material which is filled into a metal mold (22) and molded. At this time, by adjusting a quantity of powders, a mechanical quality coefficient Q of the vibrator is adjusted. A triangular cylindrical vibrator (30) may be formed by deforming of a cylindrical seamless pipe (40) such as a constant elastic metal material. As a method of deforming, there are, for example, roll forming, dice forming or press forming.