Cable-type welding wire submerged arc surfacing

Autor: Mingfang Wu, Yong Chen, Kai Qi, Jiayou Wang, Chenfu Fang, Zhidong Yang
Rok vydání: 2017
Předmět:
Zdroj: Journal of Materials Processing Technology. 249:25-31
ISSN: 0924-0136
DOI: 10.1016/j.jmatprotec.2017.05.020
Popis: The effects of electromagnetic pressure, resistance heat and rotating arc on process properties and micro-properties in submerged arc surfacing using cable-type welding wire are analyzed. The electromagnetic pressure of cable-type welding wire submerged arc surfacing induced by seven welding wires is small than that of traditional single-wire submerged arc sufacing, resulting in the average decrease of the dilution rate by 33%; the resistance heat of the wire extension of the cable-type welding wire submerged arc surfacing is larger, resulting in an average increase of the deposition rate by 40%; the strong stirring effect of the cable-type welding wire submerged arc surfacing induced by the rotating arc gives rise to a finer and more uniform microstructure and larger hardness in the surfacing layer.
Databáze: OpenAIRE