Lean Transfer Machine Performs Turning, Boring, Milling
IMTS 2018: Gnutti’s Piccola lean transfer machine is designed for high flexibility, productivity and reconfigurability.
Gnutti’s Piccola lean transfer machine is designed for high flexibility, productivity and reconfigurability. It is available with as many as 22 upper spindle units, 12 radial double-spindle units and 22 lower spindle units with as many as five CNC axes. Spindle speed ranges to 24,000 rpm. The machine performs turning, boring, milling, broaching, angle-hole and deburring operations on parts ranging to 32 mm in diameter. Parts may consist of any kind of alloy. The machine supports loading from bar, blank or coil.
The machine is designed to increase return on investment and is intended to replace several machines in the production cell. This creates more floor space and enables users to work on other jobs. A compact size, short setup times and retoolability of parts contributes to flexibility.
Running rotary milling cutters at the proper speeds and feeds is critical to obtaining long tool life and superior results, and a good place to start is with the manufacturer's recommendations. These formulas and tips provide useful guidelines.
With macros and canned cycles resident in the CNC on most contemporary turning centers, single point turning of OD threads can seem like almost a default process decision. However, for numerous applications, OD thread rolling has inherent advantages as an alternative to cutting threads.
The right choices in tooling and technique can optimize the thread turning process.