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Process data acquisition in vibration welding of thermoplastics
Author(s) -
Potente Helmut,
Kaiser Harald
Publication year - 1989
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760292307
Subject(s) - welding , displacement (psychology) , process (computing) , materials science , vibration , mechanical engineering , plane (geometry) , data acquisition , energy (signal processing) , acoustics , structural engineering , composite material , computer science , engineering , mathematics , physics , geometry , psychology , psychotherapist , operating system , statistics
Abstract A measuring method is presented for process monitoring and process analysis of linear vibration welding of thermoplastics. The method works by recording and evaluating time‐dependent signals that describe the process—such as the frequency‐dependent signals of the displacement of the two parts being joined, the tangential force in the welding plane—and the nonperiodic signals of the welding process, i.e. the normal force in the welding plane and the melting or joining displacement of the parts being joined. It is possible to determine the energy input into the welding zone as a function of the selected machine parameters and the process sequence over time.