Conventionally honed, “single-process honed,” or “peak honed” surface texture is generally comprised of a crosshatched surface with fairly random peaks and valleys. For a perfectly random surface, the height of the peaks is similar to the depth of the valleys. In single-process honing we often find that the peaks heights are slightly smaller than the … Read more
This brake rotor surface shows turning marks along with also torn and pitted areas which can be extracted from the underlying texture by using OmniSurf3D‘s using directional filtering function. Under the “Analysis – Settings”, choose the filtering tab and set the Long Filter to a Gaussian filter of 0.008 mm along the X direction and 0.8 … Read more
A plateau honed surfaces is the result of a rough honing process, which creates valleys, finished with a plateauing process, which removes the peaks. This is the most common process in cylinder bores for a wide variety of fuels. It achieves a surface that is more “broken in” from the start. The peaks provide a … Read more
Plasma coated or SUMEbore® cylinder bores use a plasma process to spray one of many different coatings on the surface. This coated surface is typically somewhat porous and must be finish-honed to achieve the final surface. The finish-honing process for plasma cylinder bores typically involves very fine abrasives, and the resulting surface is made up … Read more
From Charles Navaro of LN Engineering: This data is a sample coupon of a Nikasil® plated, used Porsche cylinder, below ring travel. This surface is indicative of a freshly-honed Nikasil, NSC, or nickel silicon carbide plated cylinder bore. Nikasil is electroplated onto the cylinder bore approximately .004-.005” thick and is then diamond plateau honed. The … Read more
This data is a section of a Lokasil® cylinder taken from a used Porsche 911 (996) engine block. Lokasil is a process for manufacturing aluminium engine blocks with silicon-reinforced cylinder sliding surfaces. It that was developed by Kolbenschmit as an alternative to the alloy Alusil. The high silicon content aluminum that makes up the cylinder … Read more