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What is Class A Surface

  • Author:Patrick
  • Source:www.xy-global.com
  • Release on :2017-12-22

What is Class A Surface

In automotive design, a class A surface is any of a set of freeform surfaces of high efficiency and quality.


A common method of working is to start with a prototype model and produce smooth mathematical Class A surfaces to describe the product's outer body. From this the production of tools and inspection of finished parts can be carried out. Class A surfacing complements the prototype modelling stage by reducing time and increasing control over design iterations.


Class A surfaces can be defined as any surface, that has styling intent, that is either seen, touched, or both and mathematically meets the definition for Bezier.

The following four are common Class A surfaces

Automotive design application

Product design application

Aerospace design application

Clay modelling


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