GB/T 38967-2020Categories of typical structural elements for civil aircraft sheet metal parts (English PDF)

3.1 Sheetmetalstructuralelement

The features that make up the structure of sheet metal parts are the basic units that make up sheet metal parts.

3.2 Sheetmetalstructuralparameter

Describe the parameters of the structural elements of sheet metal parts from the aspects of element characteristics, materials, craftsmanship, etc.

4.1 Principles of element classification

4.1.1

According to the principle of material variety similarity, sheet metal parts are divided into three categories. plate parts, extruded profile parts and pipe parts.

4.1.2

Classify each type of sheet metal parts according to their functional characteristics, which are generally divided into skin parts, frame rib parts, extruded profile parts, and conduits

Class parts, etc.

4.1.3

The classification of structural elements of sheet metal parts shall fully consider the principle of similarity of process characteristics, functional characteristics and structural characteristics.

4.2 Principles of parameter definition

4.2.1

The structural parameters of sheet metal parts will be restricted by the material and process characteristics. When defining the structural parameters of sheet metal parts, the effect of material and process characteristics should be considered.

Its impact.

4.2.2

The definition of structural parameters of sheet metal parts shall be conducive to the standardization and standardization of sheet metal parts structure design.