Browse through any coordinate measuring machine (CMM) or machine tool stylus catalog, and you’ll see an array of available materials from which to choose. Of course, the old standbys—ruby balls, carbide shafts, and stainless steel bases—are still there. But today you’ll find silicon nitride, zirconia, steel, diamond, carbon fiber, ceramic, titanium and more. This leads to lots of questions about the best material for the job. In this article, we’ll explore materials and their advantages and disadvantages.
In response to evolving markets, CMM and machine tool styli are becoming lighter, stiffer, and more wear resistant.