200809 Standard Specifications for Casting Toleran

Copyright 2009, RapidProtoCasting Vancouver, WA 98685 United StatesPage1of8 Standard Specifications for Casting Tolerances-LinearDimensionsK. A. Silva, InForce RapidProtoCasting, Inc., Vancouver, WA USA 98685 ABSTRACTThis Standard provides guidance for Casting dimensiontolerances where no other requirements exist for form,fit or function (general tolerances). The generaltolerances presented in this paper are based oninternational and US standards for generalmanufactured component tolerances and castcomponent tolerances. These tolerances are establishedusing the basic size of the specific feature referred to bythe dimension and the tolerances are smaller for smalldimensions and larger for large dimensions ( , ) unlike traditional decimal placetolerances where the tolerance is established bythenumber of digits to the right of the decimal place ( , ). This paper does not addressmeasurement method, measurement error, statisticaluncertainty, statistical sampling, process capability, fitclass, preferred numbers ordrafting standards whichshould be specified separately and may be based onother international, US or company specification provides general toleranceguidance for lost-wax investment castings based on thebasic size of the specific feature referred to by specification is not intended to addressdimensional tolerances for features subject to specificform, fit or function in mm or inches th

Casting Shrink: Casting shrink is the difference in size and shape between the pattern received by the casting supplier and casting following cooling, cleaning ... defects, heat treating to improve mechanical and chemical properties of the cast metal and surface cleaning (chemical milling, sand-blasting, etc.) to

Loading..

Tags:

  Defects, Casting

Information

Related search queries