Abstract: Design and manufacture of the covering components is an important issue in automobile
industry. Aiming at its rapid design, this paper achieves the goal using the minimal workload by
modifying and replacing certain key components within the pre-designed templates according to
practical needs for the actual production to obtain the expected design result. Firstly the parts in
covering components are classified into four types, according to which the templates are created with
technics and design knowledge embedded. Faced with a new design, the most important operation is
to replace the key components in the template, and then the system will automatically append the
related information onto them. Related curved surfaces are then extended or trimmed to adapt to the
needs. Later experiments validate that the proposed method can effectively reuse the past experiences,
reduce errors and finally improve the quality of design.

Key words: covering component, drawing die, intelligent design, technics replace, template