Metal deforming – Process – Tube making or reshaping
Patent
1982-08-27
1984-09-11
Larson, Lowell A.
Metal deforming
Process
Tube making or reshaping
72402, B21K 2108
Patent
active
044702884
ABSTRACT:
Manufacturing method for a tubular shell of a constant velocity universal-joint for flexibly coupling two rotary shafts, to one of which the shell is fixed at a flange thereof. The method comprises a groove and preliminary flange forming process and a flange forming process. In the former process a hollow cylindrical blank is applied pressing in a radial direction for forming plural grooves therein and forming at the same time a preliminary flange at one end of the cylindrical blank by expanding it into a funnel shape, and in the latter process the preliminary flange formed on a semi-finished article in the former process is formed into a completed flange by a flange forming die, while holding the semi-finished article in a restrained status under pressure from either side, external and internal, by means of restraining dies. An apparatus suitable for performing the method is also disclosed.
REFERENCES:
patent: 2151568 (1939-03-01), Sinclair
patent: 3792596 (1974-02-01), Orain
patent: 4143533 (1979-03-01), Bosch
patent: 4319478 (1982-03-01), Yoshioka
patent: 4381659 (1983-05-01), Welch et al.
Ikeda Sadao
Matsubara Koichi
Takeda Koichi
Larson Lowell A.
Toyota Jidosha & Kabushiki Kaisha
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