Document Type and Number:
Japanese Patent JPH037451
Kind Code:
B2
Abstract:
A built-up camshaft is fabricated by fitting cam disks on a hollow shaft, fitting shaft end caps over the ends of the hollow shaft, placing the resulting structure in a die, compressing the hollow shaft in the axial direction thereof inwardly from the opposite ends thereof thereby to carry out swaging tube expansion thereof to place all parts in a temporarily fixed state, and introducing a fluid under pressure into the hollow shaft thereby to carry out bulging and expansion of diameter at specific parts of the hollow shaft and obtain an integral built-up camshaft.
Inventors:
SUZUKI HIDEO
Application Number:
JP10908685A
Publication Date:
February 01, 1991
Filing Date:
May 21, 1985
Export Citation:
Assignee:
MUSASHI SEIMITSU KOGYO KK
YAMAMOTO SUIATSU KOGYOSHO KK
YAMAMOTO SUIATSU KOGYOSHO KK
International Classes:
B21D26/02; B21D26/033; B21D53/84; B23P11/00; F01L1/04; F01L1/047; F16H53/02