Abstract
Two applications of surface finish technology to industrial problems are discussed. The first problem involves the deterioration of tools used to turn large numbers of parts. Preliminary observations indicated that waviness of the tool cutting surface impeded chip flow over the tool and reduced usable life. Changing the tool finishing conditions reduced waviness considerably and increased tool life between sharpenings from 8000 to 53 000 parts. The second case involves the degradation of flat steel tracks for rolling needle bearings in a moulding machine. Waviness of both the newly ground and refinished surfaces led to their rapid deterioration In addition, the hardness of the steel was also considered to be too low for this application. By improving the finishing process, the life of a set of guides was improved from typically 1500 hours to 5000 hours. For this case, the financial implications of the results are also discussed.
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