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Mastering the Art of Cylinder Bore Honing
ISSN: 0148-7191, e-ISSN: 2688-3627
To be published on September 15, 2020 by SAE International in United States
Honing is a stock removal process intended to perfect bore geometry and size by removing a minimal metal layer while generating a finish pattern to provide optimum lubricant retention. The hone process produces extremely tight tolerances in straightness, roundness, size, and surface finish of cylindrical bores. The process expands abrasive stones of suitable grit and grade, under controlled pressure against the work surface while being rotated and reciprocated in the part. Combining these motions produces a cross-hatch pattern in the surface of the part being honed. In this presentation, we will show that the outcome of the honing process - not only in terms of the GD&T but also the tribology of the finished component - depending on a great number of parameters including the machine type, working conditions, tools, process fluid, and most importantly the operator experience. We will also demonstrate advantages of mechanochemical finishing versus conventional mechanical finishing.