Electric heating – Metal heating – For bonding with pressure
Patent
1985-08-27
1987-03-10
Goldberg, E. A.
Electric heating
Metal heating
For bonding with pressure
219 591, B23K 1102
Patent
active
046492534
ABSTRACT:
The apparatus possesses work locating fixtures or clamping devices for clamping edge areas of hollow cylindrical blanks as well as a facility for pressing together the mutually confronting edges of axial slits of the blanks. One of the jaws of each work locating fixture or clamping device is connected to a source of welding current. To prevent substantial elastic deformations of the apparatus caused by the very high clamping forces of the work locating fixtures or clamping devices as well as compression forces before, during and after welding and to render possible a feeding and removing of the blanks or wheel rim hoops, transverse to the axis of the blanks, each work locating fixture or clamping device possesses two movable clamp or pincer-type partial jaw members which cooperate with an associated fixed clamping jaw. These partial jaw members act axially from both sides toward the inner circumference of the blank and their pivotal movements are independent of their essentially linear advance or approach motion toward the associated fixed clamping jaw.
REFERENCES:
patent: 2713626 (1955-07-01), Lewis
patent: 4187406 (1980-02-01), Fencl et al.
patent: 4562326 (1985-12-01), Tan et al.
Goldberg E. A.
H. A. Schlatter AG
Kleeman Werner W.
Sigda C. M.
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