EVALUATION OF CONSTANT CURRENT WELD CONTROL FOR PINCH WELDING

Korinko, P ; STANLEY, S ; HOWARD, H

Savannah River Site (S.C.)

关键词: Electric Potential;    Bypasses;    Process Control;    36 Materials Science;    Welding;   

DOI  :  10.2172/891866
RP-ID  :  WSRC-TR-2005-00434
RP-ID  :  DE-AC09-96SR18500
RP-ID  :  891866

美国|英语

来源: UNT Digital Library

【 摘 要 】

Modern weld controllers typically use current to control the weld process. SRS uses a legacy voltage control method. This task was undertaken to determine if the improvements in the weld control equipment could be implemented to provide improvements to the process control. The constant current mode of operation will reduce weld variability by about a factor of 4. The constant voltage welds were slightly hotter than the constant current welds of the same nominal current. The control mode did not appear to adversely affect the weld quality, but appropriate current ranges need to be established and a qualification methodology for both welding and shunt calibrations needs to be developed and documented.