Diamond Tool Wear Vs. Cutting Distance On Electroless Nickel Mirrors

C K Syn; J S Taylor; R R Donaldson

doi:10.1117/12.939527

13 February 1987 Diamond Tool Wear Vs. Cutting Distance On Electroless Nickel Mirrors

C K Syn, J S Taylor, R R Donaldson

Proceedings Volume 0676, Ultraprecision Machining and Automated Fabrication of Optics; (1987) https://doi.org/10.1117/12.939527
Event: 30th Annual Technical Symposium, 1986, San Diego, United States

Abstract

Wear data are presented for diamond tools cutting electroless nickel (eNi) for cut lengths up to 70,000 ft (13 miles). Two tools having different infrared absorption characteristics were used to cut an eNi preparation that had yielded minimum values for surface roughness and tool wear rate in a previous study. The data include Talystep measurement of the rms amplitude of the feed-marks versus cumulative cutting distance, representative examples of shape changes for the feed-mark profiles, SEM and optical micrographs of the tool rake and flank face wear zones, and measurements of the cutting edge profile and edge recession distance by a tool-nose replication technique. Feed-mark roughness values were found to increase from 5 to 90 A rms over the duration of the test, with an associated edge recession of about 1000 A and the development of a periodic tool edge grooving indicative of burnishing of the part surface. The IR absorption data successfully predicted the order of the two tools in terms of wear rate and fracture toughness.

Citation Download Citation

C K Syn, J S Taylor, and R R Donaldson "Diamond Tool Wear Vs. Cutting Distance On Electroless Nickel Mirrors", Proc. SPIE 0676, Ultraprecision Machining and Automated Fabrication of Optics, (13 February 1987); https://doi.org/10.1117/12.939527

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