Methods and Devices Used in Determining the Quality of Electric Wires Terminal Crimping

Abstract

In this study, it is planned to investigate the analysis methods and devices used for analysis in the quality determination of terminal crimping in the rapidly developing and growing ready-made electrical cable manufacturing sector. Electric cables are used both in data exchange and transmission of electric current. For this reason, it is always desired that its assembly be done easily and reliably. For this, a connection element called terminal is placed at the end of the cable. This process is called terminal crimping. Terminal crimping can be performed manually with the help of crimping pliers or with semi-automatic or fully automatic machines. However, the process may not always be performed in the desired quality. Losses in data transmission may occur as a result of poor quality crimping. In the transmission of electrical current, undesirable events such as cable heating, explosion, fire may occur as a result of bad contact. For this reason, some quality control devices or test platforms to be designed are needed to determine the quality of the terminal crimping operations. Determination of the crimp quality in existing quality control devices is mainly made by electrical testing, cross-sectional imaging and force analysis methods. In this study, comparative analysis of methods and tools for determining the crimp quality in cable manufacturing industry has been made. Defects that may be encountered in crimp processes and their characteristics are revealed, and the reasons for preference, advantages and disadvantages of destructive/non-destructive quality control techniques are summarized.