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
This dataset is part of a series showing the surface of an agate stone at each stage of polishing. This is the stone’s surface after the initial saw cut to prepare the sample for tumbling. The low area is an inclusion of a softer material in the stone. Measured with a Zygo ZeGage Plus, 10x … Read more
This dataset is part of a series showing the surface of an agate stone at each stage of polishing. This is the stone’s surface after the first tumbling pass with 60-grit silicon carbide. The low area is an inclusion of a softer material in the stone. Measured with a Zygo ZeGage Plus, 10x objective, desampled. … Read more
This dataset is part of a series showing the surface of an agate stone at each stage of polishing. This is the stone’s surface after a second tumbling pass with 60-grit silicon carbide. The low area is an inclusion of a softer material in the stone. Measured with a Zygo ZeGage Plus, 10x objective, desampled. … Read more