NASA NTRS · 19900000300
Spot-Welding Gun With Adjustable Pneumatic Spring
Abstract
Proposed spot-welding gun equipped with pneumatic spring, which could be bellows or piston and cylinder, exerts force independent of position along stroke. Applies accurate controlled force to joint welded, without precise positioning at critical position within stroke.
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Burley, Richard K.. 1990-06-01. Spot-Welding Gun With Adjustable Pneumatic Spring. https://ntrs.nasa.gov/citations/19900000300
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