RT Journal Article
SR Electronic
A1 Miao, Hong
A1 Shan, Xiang
A1 Zhang, Shanwen
A1 Jin, Yifu
A1 Zuo, Dunwen
T1 Process Online Monitoring on Cold Extrusion of Internal Thread in High-strength Steel
JF Manufacturing Technology Journal
YR 2018
VO 18
IS 6
SP 954
OP 961
DO 10.21062/ujep/207.2018/a/1213-2489/MT/18/6/954
UL https://journalmt.com/artkey/mft-201806-0014.php
AB In order to solve the problems of data collection, data storage, artificial neural networks, real-time display of images, real-time monitoring of current status and recurrence of historical data, online monitoring system of cold extrusion of internal thread process is designed by LabVIEW8.5. The time-domain analysis and time-frequency-domain analysis are carried out for the torque signal, temperature signal, vibration signal, acoustic emission signal and transmitted signal. The research shows that: this online monitoring system can forecast processing status accurately, raise real-time alarm to replace or re-install the thread forming tap, accordingly avoids effectively the wreckage of thread forming tap and the scrap of work pieces; the fault recognition rate reaches 97%. And the practical model of online monitoring system for cold extrusion of internal thread process can be used to monitor working process.