Metal working – Method of mechanical manufacture – Prime mover or fluid pump making
Patent
1997-10-22
1999-11-02
Cuda, Irene
Metal working
Method of mechanical manufacture
Prime mover or fluid pump making
29888092, B23P 1500
Patent
active
059746637
ABSTRACT:
An integral cast-iron connecting rod blank having a smaller-diameter end, a shank, and a larger-diameter end with a crank opening is set on an inclined base, and the tip end of a laser beam applying device is positioned in the larger-diameter end. While a YAG laser beam from the laser beam applying device is being applied to diametrically opposite inner central wall regions of the larger-diameter end, the laser beam applying device is moved to form notches transversely in the respective inner central wall regions. Two spreading elements are placed in the crank opening, and then a tapered wedge is inserted downwardly between the spreading elements. A downward impact point load is applied to a load bearing surface of the wedge thereby to apply spreading forces to the larger-diameter end. A crack starting radially outwardly from the notches is developed in the larger-diameter end, dividing the larger-diameter end into a saddle and a cap. Mating surfaces of the saddle and the cap have interfitting surface irregularities which prevent the saddle and the cap from being combined in wrong orientations. Before the larger-diameter end is split open, the crank opening is finished for roundness while the larger-diameter end is being subjected to the same load as a fastening load by which the saddle and the cap will be fastened by bolts.
REFERENCES:
patent: 3994054 (1976-11-01), Cuddon-Fletcher et al.
patent: 4191238 (1980-03-01), Pichl
patent: 4216682 (1980-08-01), Ban et al.
patent: 4569109 (1986-02-01), Fetouh
patent: 5115564 (1992-05-01), Miessen et al.
patent: 5169046 (1992-12-01), Miessen et al.
patent: 5208979 (1993-05-01), Schmidt
patent: 5274919 (1994-01-01), Becker
patent: 5320265 (1994-06-01), Becker
patent: 5353500 (1994-10-01), Hoag et al.
patent: 5699947 (1997-12-01), Cavallo et al.
Ikeda Hideaki
Kodama Haruki
Matsue Yasutaka
Murakami Toshikazu
Shinohara Takao
Cuda Irene
Honda Giken Kogya Kabushiki Kaisha
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