Abstract
It was tried to make a cyclone collector of which body was produced by sinking and liquid bulge forming of metalic tubular blank, and fixed inlet and outlet pipes on the body. This processing method is possible to make a cyclone collector of better working accuracy. In experiments the characteristics of the cyclone collector were compared with those of a cyclone collector by thin plate working. As a result, it was known that a cyclone collector by sinking and liquid bulge forming could have as good collection efficiency as a cyclone collector by thin plate working and have much the same pressure loss.