Process and apparatus for producing at least two forgings on a hot-forming press
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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May 27, 1986
Issued Date -
N/A
app pub date -
Jan 2, 1985
filing date -
Oct 6, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Starting from a pre-heated bar, there is sheared-off first a portion (41) which, in a first forming stage of the machine, is formed into a tier shaped pressed article. In the second forming stage, the pressed article is further formed so that it has an inner ring (J), an outer ring (A) arranged co-axially to this and a radial annular web (S) connecting the two rings (J,A). The sheared-off outer ring (44) is therefore ejected in the next to last stage, while in the last working stage the inner ring (45) separated from the outer ring is subjected to further working. This last working stage involves stamping out a waste piece (35) and shearing-off an annular web (38). It is also possible to carry out a forming operation in this last working stage to upset the remaining inner ring (22a). By means of this process which provides for the elimination of the finished outer ring (44) in the last working stage, the radial annular web (38) can be supported over its full cross-sectional surface during the shearing-off operation.
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