Investment Casting Surface Textures


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Aerospace Castings Military Castings Precision Investment Castings Prototype Castings Aluminum Investment Castings Copper Alloy Investment Castings Search Precision Investment Castings All Any Exact	Request a Quote Upload Drawings Investment Casting Surface Texture "Surface texture includes roughness, waviness, lay, and flaws" as defined in ASA B 46.1.1962. Industry uses the term Root Mean Square (RMS) and Arithmetic Average (AA) interchangeably. RMS gives values about 11% higher than AA, which is an insignificant difference. Investment casting foundries will measure to either standard. Values in this article are shown in both RMS and AA, as measured by an electric profilometer. Another surface texture measuring device gaining wide approval is the visual comparator. This uses samples of surface finish shown on a graduated scale from fine to rough. A good example is the Wheelcraft comparator. Surface texture standards for investment castings are as follows: 125 RMS Max. 115 AA Max. 60 Wheelcraft Max. Alloy is multi-dimensional except in ground areas. Secondary operations will improve surface texture, giving results comparable to the equivalent wrought alloy. Questions about investment casting surface texture? Contact us today for answers to all your investment casting surface texture questions.

Aerospace Castings \| Aluminum Investment Castings \| Angular Holes \| Angularity \| Copper Alloy Investment Castings \| Concentricity \| Contours, Radii, Cams Curved Holes \| Flatness (Dish) \| Hole Tolerance \| Internal Radii, Fillet \| Investment Casting Advantages \| Investment Casting Capabilities \| Military Castings Out of Roundness \| Parallelism \| Perpendicularity \| Precision Investment Castings \|Positioning \| Prototype Castings \| Roundness \| Standard Linear Tolerances Straightness \| Surface Textures \| Tapered Holes \| Variables \| Investment Casting Site Map Londonderry, NH Website Design Development Alcumet, Inc. is a leader in the production of aerospace castings, military castings, prototype castings, aluminum investment castings and beryllium copper investment castings. MA, Massachusetts, NH, New Hampshire, CT, Connecticut, RI, Rhode Island, VT, Vermont, ME, Maine, New England, USA