. The Bell System technical journal . Pig. lb — Wile l)l()ck asscinhlies ;is iii;inut;ictui(<l t<ir wlic spring ixlays. 884 THE BELL SYSTEM TECHNICAL JOURNAL, JULY 1954 ACKNOWLEDGMENT The authors wish to acknowledge the many contributions of fellowengineers to the development work which they have reported. Theseengineers include; in the wire straightening study, C. Paulson, A. , L. L. Mazza and the late N. K. Engst; and in the moldinginvestigation, F. A. Schultz. Some Fundamental Problems inPercussive Welding By ERIC EDEN SUMNER (Manuscript received February 5, 1954) The basic
. The Bell System technical journal . Pig. lb — Wile l)l()ck asscinhlies ;is iii;inut;ictui(<l t<ir wlic spring ixlays. 884 THE BELL SYSTEM TECHNICAL JOURNAL, JULY 1954 ACKNOWLEDGMENT The authors wish to acknowledge the many contributions of fellowengineers to the development work which they have reported. Theseengineers include; in the wire straightening study, C. Paulson, A. , L. L. Mazza and the late N. K. Engst; and in the moldinginvestigation, F. A. Schultz. Some Fundamental Problems inPercussive Welding By ERIC EDEN SUMNER (Manuscript received February 5, 1954) The basic processes of percussive welding are presented. Large variationsin arc duration residt from the spread in initiation separation, magneticbridging effects, and the amplifying effect of evaporation. Higher voltagesare shown to decrease the relative spread of initiation separation. An analysisof bridging suggests minimizing the ratio of current to separation. A weldingcircuit offering independence from arc-duration variations is develo
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
