BS ISO 16337. Application of statistical and related methods to new technology and product development process. Robust Tolerance Design (RTD)
03.120.30 - Application of statistical methods
This document specifies guidelines for applying the Robust Tolerance Design (RTD) of Taguchi Methods to finalize the design process of products.
Robust Tolerance Design (RTD) is applied to the objective product to set the optimum tolerances of design parameters around the nominal values. RTD finds the effects of errors in design parameters on final product’s output and estimates the total variance of the output when tolerances are changed. RTD achieves the target variance of the output from the viewpoints of robustness, performance and cost.
Tolerance expresses a maximum allowable error in the value of design parameter in manufacturing process. It is perfect that parts or elements of every product have the designed nominal values of the design parameters. However, actual manufacturing cannot give the exact designed values of the design parameters for all the products. The actual products have some errors in the values of parts or elements of the products. These errors are supposed to be within the designed tolerances in manufacturing.
This document is applicable to determine the optimum tolerances and finalize the design process of the product.
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