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Glebar Inc. says the GT-610M is an affordable, compact, high-precision centerless infeed/through-feed grinding system, built for the machine shop. The GT-610M includes independent upper and lower slides, and a blade height ramp system for finite blade adjustment. Combining these features with its 8-5/8" wide x 10" diameter work wheel, it is able to remove more material faster, and with better surface finishes, than competing machines with narrower grinding wheels. It is able to grind spool valves, bar stock, pins, bushings, metals, hard and green ceramics, and other engineered materials, with a smaller footprint than competing machines.
Starting with a twin grip super precision spindle supporting a larger regulating wheel, 6" in diameter and 10” wide, the rigidity in this small package is second to none. A servo-driven, close-coupled drive offers the operator a high degree of control over the parts being ground.
A 7.5-hp motor drives the 10" (254 mm) diameter x 8-5/8" (219 mm) wide grinding wheel 6400 SF. The design of the work head assembly allows a single operator to replace the grinding wheel in under 15 minutes.
The system's two independent slides, which control the regulating wheel position and the work rest blade position, provide for a much easier and accurate setup than competing systems.
The GT-610M has been tooled to grind materials ranging from polycrystalline diamond tools and hard carbide to titanium bar stock, and everything in between. A test grind of 12 foot (3.6m) long, 1" (25mm) diameter titanium bar-stock on the GT-610M easily held a total diameter tolerance of 0.0002" (0.005mm), while removing 0.012" (0.3mm) per pass. Diameter roundness of 0.00007" (0.002mm) was achieved.
Related Glossary Terms
- ceramics
ceramics
Cutting tool materials based on aluminum oxide and silicon nitride. Ceramic tools can withstand higher cutting speeds than cemented carbide tools when machining hardened steels, cast irons and high-temperature alloys.
- grinding
grinding
Machining operation in which material is removed from the workpiece by a powered abrasive wheel, stone, belt, paste, sheet, compound, slurry, etc. Takes various forms: surface grinding (creates flat and/or squared surfaces); cylindrical grinding (for external cylindrical and tapered shapes, fillets, undercuts, etc.); centerless grinding; chamfering; thread and form grinding; tool and cutter grinding; offhand grinding; lapping and polishing (grinding with extremely fine grits to create ultrasmooth surfaces); honing; and disc grinding.
- grinding wheel
grinding wheel
Wheel formed from abrasive material mixed in a suitable matrix. Takes a variety of shapes but falls into two basic categories: one that cuts on its periphery, as in reciprocating grinding, and one that cuts on its side or face, as in tool and cutter grinding.
- polycrystalline diamond ( PCD)
polycrystalline diamond ( PCD)
Cutting tool material consisting of natural or synthetic diamond crystals bonded together under high pressure at elevated temperatures. PCD is available as a tip brazed to a carbide insert carrier. Used for machining nonferrous alloys and nonmetallic materials at high cutting speeds.
- tolerance
tolerance
Minimum and maximum amount a workpiece dimension is allowed to vary from a set standard and still be acceptable.
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