Also referred to as center-type grinding, cylindrical grinding is used to remove material from the cylindrical surfaces and shoulders of the workpiece. We typically mount the workpiece between conical centers and rotate it by a work head (also called drive head). The cutting tool we use is an abrasive wheel that rotates at variable speeds. It is mounted to and controlled by the wheel head. The grinding wheel can be dressed (cut or shaped) straight or tapered to produce simple cylindrical shapes or it can be dressed in a complex shape to produce intricate contours on the workpiece.
We use this type of machining process to produce highly accurate sizing and fine surface finishes. We operate (3) ultra-modern CNC Studer grinders in our climate controlled cylindrical grinding room.
Urethane Grinding and Wire Saw Guide Roll Maintenance
In addition to grinding various metals, our Cylindrical Grinding Department specializes in the grinding of urethane products such as guide rolls used in wire saws.
Wire saws are used primarily in the solar industry to slice high yield solar wafers. Meyer Berger and Applied Materials are the two largest names in CNC wire saws.
We are also experienced in the maintenance of guide roll cores. Maintenance may be as simple as cleaning and polishing of the bearing areas and replacement of bearings. Cores may also require rebuilding of the bearing seats and replacement of broken drive bushings and pins. In addition to core maintenance, our technicians have also been trained to service the gearboxes used to drive the guide rolls in a wire saw.
Our technicians are capable of working to exacting specifications with a maximum work envelope of 437mm diameter x 1600mm in length:
- Concentric within 0.0005 mm (0.5 microns)
- Groove Spacing +/- 0.001 mm (1 micron)
- Groove Depths +/- 0.005 mm (5 microns)
- Groove Angle +/- 0.5 degree
- Diameters +/- 0.0025 mm (2.5 microns)
- Our Studer Grinding machines are capable of incremental movements of as small as one tenth of a micron, (0.0001 mm or 0.000004”)