ID, OD, Face, Taper, Radius, Contour Grinding in Single Chucking
Eastec 2017: Hardinge Grinding Group, a subsidiary of Hardinge Inc., will showcase its USACH 100‐T4 machine for ID/OD precision cylindrical grinding in a variety of industries.
Hardinge Grinding Group, a subsidiary of Hardinge Inc., will showcase its USACH 100‐T4 machine for ID/OD precision cylindrical grinding in a variety of industries. The machine is said to combine ID, OD, face, taper, radius and contour grinding in one chucking. Thanks to the generous 500-mm (19.68") cross-axis travel (X axis), the machine processes parts as large as 450 mm (17.7") in diameter and as heavy as 272 kg (500 lbs).
Other features and options include as many as four motorized grinding spindles; a high-precision measuring probe; a torque motor B axis; a high-precision hydrostatic workhead (B1 axis); a Siemens or FANUC control; an option for simultaneous face and ID grinding; and an option for full or partial automated part loading/unloading.
Two enabling technologies -- superabrasive wheels and high precision servo control -- come together to provide a contour grinding process that resembles an OD turning operation. For many medium volume OD grinding applications, this method may be a means to consolidate several manufacturing steps into a single setup.
No other process can do what creep-feed grinding can do. Recent tests show even more can be gained by optimizing every element of a creep-feed system.
It sounds like a contradiction in terms-between centers and centerless grinding on one machine. But for some categories of workpieces, it's a viable production process that can yield machining time reductions of 45 percent over separate grinding operations.