Multi-mode structural weld monitor on a time base

Details Multi-mode structural weld monitor on a time base Multi-mode structural weld monitor on a time base

1975-04-29

1977-06-07

Reynolds, Bruce A.

Electric heating

Metal heating

For bonding with pressure

219117R, B23K 1124

Patent

active

040285227

ABSTRACT:
To provide a plurality of different weld quality indicators in resistance, projection and forge welding, the varying separation of two electrodes during a plurality of different time brackets defined within a weld cycle is measured. At least one interval timer is used to define such time brackets. These weld quality indicators include the surface resistance of the workpieces, the melting rate, the maximum expansion, the expansion rate, the weld size, the forge force, the set-down rate, etc.

REFERENCES:
patent: 3400242 (1968-09-01), Waller
patent: 3404252 (1968-10-01), Michael
patent: 3417221 (1968-12-01), Hayward
patent: 3443056 (1969-05-01), Ramaley et al.
patent: 3585347 (1971-06-01), Needham et al.
patent: 3609285 (1971-09-01), Scarpelli et al.
patent: 3708648 (1973-01-01), Croucher et al.
patent: 3711779 (1973-01-01), Allington

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