Resistance welding sequence cycle control

Details Resistance welding sequence cycle control Resistance welding sequence cycle control

1980-01-02

1982-03-02

Shaw, C. C.

Electric heating

Metal heating

For bonding with pressure

219 8641, 219 911, 219108, 219110, B23K 1124

Patent

active

043179800

ABSTRACT:
A method and apparatus are shown for controlling the cycle of a resistance welding device by providing compensation for variations in the effective weld area and the primary input electric power variations through a composite correction applied to the length of the squeeze time cycle portion prior to the weld cycle portion when weld current is activated. Compensation is made for secondary weld current variations by altering the length of the hold cycle, during which electrode contact is maintained with the work subsequent to the weld cycle portion, to change the amount of heat quenched from the weld zone. Further by sensing the condition wherein either the electrical input or the motive power that drives the movable electrode is beyond correctable limits, the welding cycle is aborted when suitable quality welds cannot be made.

REFERENCES:
patent: 3400242 (1968-09-01), Waller
patent: 4024371 (1977-05-01), Drake
patent: 4028522 (1977-06-01), Chihoski et al.

Affiliated with

Also associated with

Rating

Resistance welding sequence cycle control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Resistance welding sequence cycle control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resistance welding sequence cycle control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-60878