Part Details Review
Most material properties are measured using a specimen of some thickness as specified by the standard being used. Change in the specimen thickness would change the measured value of the property. Some examples are: For an electrical insulation application, minimum wall thickness will be dictated by the dielectric strength needed. Arc resistance, on the other hand, is a material specific property independent of wall thickness. Similar wall thickness restrictions will be applicable to an application involving thermal insulation. Flame resistance of a part also depends on the wall thickness. For a business machine part requiring a particular flammability rating, minimum thickness will be defined by the flammability standard even if it is over designed for mechanical strength. Even optical properties of a part like haze and transmission are thickness dependent. Thinner wall thickness would have less haze and better light transmission, and therefore, maximum wall thickness will be dictated by the required optics. |