12/13/2018

Hybrid CNC Boosts Multitasking Capability with FSW Technology

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Mazak Corp., through its acquisition of MegaStir, adds friction stir welding (FSW) technology to its VTC-300C CNC’s multitasking capabilities.

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Mazak Corp., through its acquisition of MegaStir, adds friction stir welding (FSW) technology to its VTC-300C CNC’s multi-tasking capabilities.FSW is a solid-state joining process that uses frictional heat and forging pressure to create full-penetration, defect-free welded joints with greater strength than conventional welding methods. The process, developed by Provo, Utah-based MegaStir, utilizes a non-consumable tool to join two metal plates without melting the workpiece. Commonly considered a forging process, FSW is well-suited for joining alloys with low melting points, including aluminum, copper and brass, among others.

Mazak first collaborated with MegaStir on the development of the Mazak VTC-800 FSW vertical five-axis machining center and they recently introduced the Mazak VTC-300C FSW. Designed and manufactured in Kentucky, the VTC-300C FSW features Mazak’s Mazatrol SmoothG CNC, a 40-taper spindle, full traveling-column design and a fixed table for the machining of extremely long and heavy workpieces (or multiple work-holding fixtures). The FSW package adds friction stir welding capability to the spindle via a unique tool holder and includes closed-loop FSW process control as well as FSW programming software that enhances the speed and capability of the process.

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