Metal deforming – Process – With temperature maintenance or modification
Patent
1996-12-18
1999-01-19
Larson, Lowell A.
Metal deforming
Process
With temperature maintenance or modification
72709, 148564, B21J 106
Patent
active
058603131
ABSTRACT:
A method of manufacturing a press-formed product having a base portion and a projecting portion which is integral with the base portion and projects in a direction different from the base portion, wherein a first forming part for forming the base portion and a second forming part which is integral with the first forming part and projects in a direction different from the first forming part are provided in a divided forming mold, and the first forming part communicates with an accommodating hole having an alloy material input port which is smaller in area than the first forming part, the method comprising the steps of moving a material placed in the accommodating hole, in the state of plastic flow by means of pressure means, and moving the material in the state of plastic flow while sequentially changing the direction of movement of the material, from the accommodating hole to the first forming part and then from the first forming part to the second forming part, thereby press-feeding and forming the alloy material while applying a strain thereto.
REFERENCES:
patent: 1410093 (1922-03-01), Dallmeyer et al.
patent: 5332456 (1994-07-01), Masumoto et al.
patent: 5415709 (1995-05-01), Kita
Nagai Yoshitaka
Taketani Katsuyuki
Larson Lowell A.
YKK Corporation
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