Flanged housing member, forming method and forming device
AssigneeNissan Motor Co., Ltd.
InventorAkihiko Ikeda
Life of this patent
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Abstract
A flanged housing member is formed using a forming method and a forming device from a forming material having a pre-flanged forming portion 2 is disposed at one end of a trunk portion 1. The entire external surface of the flanged housing member can be ironed with a sufficient degree of precision without mechanical machining. The forming material is held on one of a first die having an external forming surface and a second die having an internal forming surface. A sizing process is performed to at least form an internal surface of the trunk portion using the first and second dies. The pre-flanged forming portion is sandwiched and pressed between the first die and a flange-forming die to form a flange portion on the end of the trunk portion.
Claims16
A flanged component forming method for forming a flanged housing member comprising:
- holding a forming material having a pre-flanged forming portion that is disposed at one end of a trunk portion of the forming material;
- sizing an initial portion of the trunk portion using a first die having an external forming surface and a second die having an internal forming surface, the second die cooperating with the first die to iron the initial portion of the trunk portion to a prescribed length;
- sandwiching and pressing the pre-flanged forming portion between the first die and a flange-forming die to form a flange portion on the one end of the trunk portion;
- and
- sizing a remainder portion of the trunk portion after performing the sandwiching and pressing of the pre-flanged forming portion.
A flanged component forming device for forming a flanged housing member comprising:
- a first die including an external forming surface that is configured and arranged to size an initial portion of a trunk portion of a forming material having a pre-flanged forming portion that is disposed at one end of the trunk portion;
- a second die including an internal forming surface that is configured and arranged to cooperate with the first die to iron the initial portion of the trunk portion to a prescribed length;
- and
- a flange-forming die configured and arranged to sandwich and press the pre-flanged forming portion of the forming material against the first die to form a flange portion on the one end of the trunk portion,
- the first and second dies being further configured and arranged to cooperate to size a remainder portion of the trunk portion after the flange-forming die has sandwiched and pressed the pre-flanged forming portion.
A flanged component forming device for forming a flanged housing member comprising:
- first forming means for forming an initial portion of a trunk portion of a forming material having a pre-flanged forming portion that is disposed at one end of the trunk portion;
- second forming means for cooperating with the first forming means to iron the initial portion of the trunk portion to a prescribed length;
- and
- flange-forming means for sandwiching and pressing the pre-flanged forming portion of the forming material against the first forming means to form a flange portion on the one end of the trunk portion,
- the first and second forming means cooperating to size a remainder portion of the trunk portion after the flange-forming means has sandwiched and pressed the pre-flanged forming portion.
Dependencies are inferred from the claim text.