To provide a gauge head for air micrometers, capable of reducing a lead time while making its cost low.
The gauge head 1 is composed of a screw section 11, a neck section 12 extending from the screw section 11 and a measuring head 13 extending from the neck section 12. An air clearance groove 14 is formed in the measuring head 13, and a recessed section 15 is formed at its head section. A nozzle 16 is disposed in the recessed section 15 so as to extend therefrom. Its structure is made up so that air applied from an air micrometer can be ejected from a small hole 21 of the nozzle 16 to a place to be measured. The circumferential surface of the measuring head 13 is subjected to a shotpeening process wherein shots are ejected at high speeds, thereby forming fine hardened layers on the surface 31 of the measuring head 13 and on the edge surface 32 of the nozzle 16. Then, minute particles of molybdenum disulfide are ejected to the hardened layers, thereby forming solid lubricating coats.
NAKATANI TETSUYA
ISHIWATARI MASATO
MIYASAKA YOSHIO
FUJI MFG CO LTD
FUJI KIHAN KK
| JPS5989205U | 1984-06-16 | |||
| JPH0277601U | 1990-06-14 | |||
| JPH08134622A | 1996-05-28 | |||
| JPH09112469A | 1997-05-02 |