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Challenge: To grind 4 diameters on parts of many sizes and lengths for a manufacturer of aerospace fasteners. The goal was to provide a solution that gave the customer a machine with intelligence, in-process inspection, ease of use and to maximize up time and production rates. 

Solution

Before finding Glebar, the customer had to grind one component at a time on a rebuilt Cincinnati machine. In order to meet their demand, they needed several machines with a dedicated operator on each machine. Glebar’s GT-610 CNC gives them the capability of running millions of fasteners per year (8 pieces at a time) to micron precision. The machine provides automatic size compensation by station, and the machine can run 12,000 parts before redressing the wheel on certain components. The GT-610 CNC wheel life was much greater than that of their larger Cincinnati.

When a requirement exists to infeed grind aerospace components in a high production environment using a high level of automation, the GT-610 CNC significantly outperforms alternative processes. Glebar also offers an off-line dressing machine to eliminate downtime associated with wheel forming. In addition, the GT-610 CNC has advanced programming capabilities that allows the machine to communicate with an inspection system (in or off-line). The in-line gauging system allows the machine to auto correct the wheel dress profile by station, which allows the machine to run production in a lights out environment. 

For the outer sleeve, a GT-610 thrufeed grinder is used to grind the OD of the blank tubes, maintaining a surface finish between 3-6 RMS and maintaining a comfortable 2-3 Cpk on the outside diameter of the part. Material removal of 0.005” with a tolerance requirement of +/-0.0005” was met easily in a fully automated turnkey process.

Our system also is utilizing a patent pending controlled motorized lateral work rest blade that adjusts the lateral position of the parts which is ideal when controlling the many features and tolerances of a shaver.

 

 

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GT‐610 CNC

Infeed/Thrufeed Precision Centerless Grinding Systems

GT‐610 CNC

GT‐610 CNC

Found at the highest end of the GT‐610 series spectrum, the GT‐610 CNC High Precision Automated Infeed/Thrufeed Centerless Grinding System excels at grinding a wide range of materials and is the complete "lights‐out" solution for applications where a high degree of automation, data gathering and gauging feedback is required.

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