IMPCO Microfinisher Generates Fine Functional Surfaces

Originally titled 'Microfinisher Generates Fine Functional Surfaces'

The Microteq microfinisher from Industrial Metal Products Corp. (IMPCO) is a single-station system with computer numerical control (CNC) designed to generate final functional surface texture to tolerances unattainable with grinding.

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The Microteq microfinisher from Industrial Metal Products Corp. (IMPCO) is a single-station system with computer numerical control (CNC) designed to generate final functional surface texture to tolerances unattainable with grinding.

The machine, which uses the company’s proprietary microfinishing attachment loaded with abrasive film, was used to process a family of 68 aerospace control surface actuation shafts to better than 0.1 Ra, while creating a functional surface for the component. Besides meeting surface finish requirements, the company says the system reduced the cycle time to process the shafts from minutes to seconds, with a consistency from feature to feature and part to part. Previously, each of the shafts in the family of parts had to be set up manually then processed by hand, resulting in inconsistent surface quality from feature to feature and part to part.

The machine is designed to microfinish diameters ranging to 75 mm on any precision, load-bearing shaft to 1,000 mm in length. Such shafts are used in pumps, compressors, aerospace control surfaces and transmissions. Loading and unloading may be manual, automatic or robotic.

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