Apparatus for connecting thin plates

Details Apparatus for connecting thin plates Apparatus for connecting thin plates

1988-04-15

1989-05-23

Moon, Charlie T.

Metal working

Means to assemble or disassemble

Overedge assembling means

292835, 2924353, B23P 1904

Patent

active

048317047

ABSTRACT:
An apparatus for connecting stacked thin plates 4, 5 (in particular sheet-metal plates) or plate sections, according to which stacked flat parts 10, 11 of both plates are first deep drawn together with one another, after which the bottom area of the deep-drawn flat parts is swaged wider, and wherein the radial expansion of the bottom area of these deep-drawn flat parts is limited, as a result of which a plastic deformation of the material of the plate takes place, particularly in the peripheral area, so that a connection point is created. By means of a crimp 17 present in the peripheral area of the bottom 16 of the blind opening 3 of the die 2, the swaged material flows into itself at the points that are to be connected, and hence the clinching strength, is improved.

REFERENCES:
patent: 2992857 (1961-07-01), Lemmerz
patent: 3198155 (1965-08-01), Fraze
patent: 3359935 (1967-12-01), Rosbottom
patent: 3579809 (1971-05-01), Wolf
patent: 3771216 (1973-11-01), Johnson
patent: 3993428 (1976-11-01), Gumm et al.
patent: 4459735 (1984-07-01), Sawdon
patent: 4614017 (1986-09-01), Eckold et al.
patent: 4757609 (1988-07-01), Sawdon

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