Mori Seiki U.S.A., Inc. says its NL series of CNC lathes is becoming increasingly popular among medical manufacturers, particularly those specializing in the production of joint replacement components, which are commonly made of titanium or stainless steel.
The milling capability has been designed to be comparable to that of a machining center's, allowing the lathe to meet the requirements of a lean supply chain. Joint replacement parts are available in kits that can be customized to accommodate specific body types.
Located inside the turret, the milling motor is directly coupled to the milling tool. According to the company, this design reduces transmission losses and the inherent vibration found in lathes that use a series of gears and belts to provide milling capabilities. When compared to conventional models, the direct-coupled milling motor can reduce tool spindle acceleration time while diminishing vibration and noise by as much as 50 percent. The company also cites heightened accuracy, made possible by reducing the heat dissipated into the turret, as another potential benefit of using the lathe.