US 6,981,303 B2 | ||
Blank feeding method | ||
Yasuhiro Nakao, Sayama (Japan); Hiroto Shoji, Sayama (Japan); Kunitoshi Sugaya, Sayama (Japan); Takashi Kato, Sayama (Japan); Takaharu Echigo, Sayama (Japan); and Satoshi Matsuura, Sayama (Japan) | ||
Assigned to Honda Giken Kogyo Kabushiki Kaisha, Tokyo (Japan) | ||
Appl. No. 10/484,304 PCT Filed Jul. 23, 2002, PCT No. PCT/JP02/07420 § 371(c)(1), (2), (4) Date Jan. 20, 2004, PCT Pub. No. WO03/009958, PCT Pub. Date Feb. 06, 2003. |
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Claims priority of application No. 2001-221279 (JP), filed on Jul. 23, 2001; and application No. 2001-221330 (JP), filed on Jul. 23, 2001. | ||
Prior Publication US 2004/0194274 A1, Oct. 07, 2004 | ||
Int. Cl. B23P 17/00 (2006.01) |
U.S. Cl. 29—415 | 6 Claims |
1. A method of feeding a blank by cutting a billet, comprising the steps of:
superimposing a plurality of annular members on one another to assemble a tubular jig, said plurality of annular members having
a coefficient of linear expansion that is smaller than a coefficient of linear expansion of said billet, said plurality of
annular members having an inside diameter that is slightly greater than an outside diameter of said billet;
inserting said billet into said assembled jig;
heating said billet and said assembled jig to a temperature at which said billet is half-molten;
cutting said billet into at least one blank by moving adjacent ones of said annular members in opposite directions; and
placing said at least one blank on a press molding device with the blank fitted in the annular member.
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