Friction welding
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United States of America Patent
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-
Mar 14, 1989
Grant Date -
N/A
app pub date -
Jan 14, 1987
filing date -
Jan 17, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for friction welding a pair of workpieces (45,46) is described. The apparatus comprises a drive assembly (30) for causing relative motion between the workpieces while urging the workpieces together. A load control assembly (20) is provided which is responsive, at least towards the end of a weld cycle, to the rate of motion of one workpiece relative to the other to cause the workpieces to be urged together under a force which increases as the rate of relative motion decreases.
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