To provide a method of easily manufacturing a pipe made of metal, which gaps by springback is not generated without using an expensive drawn steel pipe, and also to provide a method of manufacturing the engine mount by which the pipe made of metal is taken as a constituent member, the pipe made of metal, and the engine mount which are manufactured by the manufacturing method.
This method of manufacturing the pipe made of metal includes: a fitting part forming stage where a projecting part is formed at one end of the metal sheet and a recessed part which is fit with the projecting part is formed on the other end part; a bending stage where the metal sheet is bent into an annular shape and the both ends of the metal sheet are butted and an end part joining stage where the projecting part is fitted with the recessed part and, by hitting or/and pressurizing the fit part, the fitting parts of the recessed part and the projecting part are adhered closely and fixed.
| JP2001096319 | DEVICE FOR MANUFACTURING LAMINATE |
| JPH0842659 | COVER FOR TORQUE CONVERTER AND MANUFACTURE THEREOF |
| JP2002095224A | 2002-03-29 | |||
| JP2005052853A | 2005-03-03 | |||
| JPH069757U | 1994-02-08 |
Masahide Kobayashi
Teppei Kai