Video: Linear Motor Micromachining Center
The AZ150 “nano precision” vertical machining center from Sodick uses a 120,000 rpm air-turbine spindle. Linear motor drives are controlled with 3-nanometer resolution, the company says—enabling the machine to produce parts with finishes down to 0.6 RMS.
The machine achieves machining accuracies of 100 nanometers or smaller—in some applications down to 5 nanometers. Axis travels are 6 x 6 x 4 inches, with a maximum work weight of 11 pounds. The spindle uses HSK-E32 shrink-fit toolholders.
The recipe for best results is simple: Start with a rigid machine, add a high pressure through-the-spindle coolant system, then combine these with the right drill geometry plus the right speeds and feeds.
Old-world craftsmanship combines with precision machining on a vertical machining center and Swiss-type lathe to produce some of the only U.S.-made mechanical wristwatch movements.
At IMTS 2014, you’ll see that a familiar U.S. machine tool brand is back.