Conversion and automation of an idle lathe into a rotary friction welding experimental system
Abstract
This paper presents the conversion of an idle lathe into a continuous drive rotary friction welding (RFW) system. Bed structure, headstock, tailstock and cross slide of the lathe were used and the required attachments were designed, manufactured and mounted appropriately. An electric motor with a magnetic brake and a hydraulic piston were utilized for continuous drive and compression units, respectively. Automation controls were implemented to manage rotational speed, friction and forging pressure, and processing time. The effectiveness of the developed system was evaluated by attempting to weld solid and pipe specimens made of similar and dissimilar materials. The tests confirmed the success of the welding process. Difficulties in welding of dissimilar materials were overcome by increasing the rotational speed, friction pressure and process time, and by applying forging pressure acting after the drive unit has stoped.
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URN: https://sloi.org/urn:sl:tjoee92305
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