GT-610 CNC Centerless Grinder Automates Part Production

An arthroscopic shaver application, developed by Glebar Company for its advanced GT-610 CNC centerless grinder, is now delivering the most precise inner and outer tubes for use by orthopedic surgeons.

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An arthroscopic shaver application, developed by Glebar Company for its advanced GT-610 CNC centerless grinder, is now delivering the most precise inner and outer tubes for use by orthopedic surgeons.

The first two systems equipped with the application have been sold to a major manufacturer of arthroscopic shavers. Arthroscopic shavers allow surgeons to insert a small and hollow cylindrical metal tube into a small incision in a patient. They allow surgeons to remove bone and tissue while at the same time flushing fluids and debris through the tube and out of the patient.

Using the Glebar GT-610 CNC to infeed grind the shape of the inner tube, Glebar is able to maintain a ± 0.0002-inch tolerance on the elliptical tip dimensions. The team developing the application also ground three diameter features to within 0.0002-inch, maintaining a TIR of 0.0001 inch and producing a smooth 9-Ra surface finish on 304V stainless steel with a ± 0.001-inch wall thickness. They removed 0.012 inch in stock for the majority of the part and 0.004 inch off the tip geometry.

Outer sleeve manufacturing occurs on a Glebar GT-610 through-feed grinder, which grinds the OD of the blank tubes maintaining a surface finish between 3-6 rms and maintains a 2-3 Cpk on the outside diameter of the part. Material removal of 0.005 inch, with a tolerance requirement of ± 0.0005 inch, is met easily in a turnkey, fully automated process, the company says.
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