Tongtai’s brand new iVU-5 is a rotary-type ultrasonic- assisted machining center that operates as a dual function vertical machining center combined with rotary ultrasonic-assisted machining of advanced materials.
Typical applications for this system include microhole drilling and machining of glass, sapphire, silicon carbide, quartz, ceramic, hardened steel, high nickel alloys, and non-ferrous materials. Any material that is softer than the cutting tool can be ultrasonic-assisted. Rotary ultrasonic machining combines high-speed spindle rotation with high frequency vertical vibration of the cutting tool. The diamond tool impacts the material with high contact speed, reducing cutting force and producing ultra-fine finishes while improving cutting efficiency 3 – 5 times faster than conventional machining.
The Tongtai iVU offers XYZ axis travels of 500mm x 400mm x 350mm. It features a Meehanite cast iron frame and roller type linear slideways for rigidity and fast, precise movement. The 25mm diameter ballscrews are class three with a double nut pre-loaded design allowing a standard rapid traverse rate of 48 metres per minute in the all axis with acceleration of 1.2G. The iVU-5 is equipped with a 30-tool arm type automatic tool changing (ATC) system. The fast, high-speed arm type ATC changes tools in only 0.8 seconds and 1.3 seconds chip-to-chip time. The 2,2kW, 20 000 RPM direct drive spindle comes standard in dual contact Big Plus 30 taper (BBT-30). A spindle chiller is standard.
For ultrasonic operation, the Tongtai iVU-5 comes standard with automatic frequency search and lock via M-codes. The auto tuning range is from 15-45 kHz. Amplitude range is 1 – 10 microns. The machine has a wide range of standard features for successful ultrasonic machining and long machine life.
The 3-axis machine is equipped with Siemens 828D control with 10.4” TFT with ShopMill and Advanced Surface. The 5-axis version is equipped with Siemens 840D control with 17” IPC, the Sinumerik MDynamics Technology package for 5-axis milling and ShopMill.
For further details contact PBS Machine Tools on TEL: 011 914 3360 or visit www.pbsmt.co.za