GB/T 33211-2016Guide line for design of metal tubular hydroforming part (English PDF)

1 Scope

This standard specifies the choice of raw material selection, space bending shape and cross-section design of metal tubular hydraulic forming parts.

This standard is suitable for the design of space three-dimensional metal tubular hydraulic forming parts.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article

Pieces. For undated references, the latest edition (including all modifications) applies to this document.

Metallic materials - Tensile testing - Part 1. Test methods for room temperature GB/T GB/T 15825.2 Sheet metal forming properties and test methods - Part 2. General test procedures

3 symbols

The symbols, names and units used in this standard are shown in Table 1.

Table 1 Symbols, names and units

Symbol name unit

phi diameter mm t wall thickness mm r bending radius mm

theta bending angle (°)

L section circumference mm

L0 original tube circumference mm

beta bulging%

Rmin part minimum fillet radius mm

Figure 1 for the diameter phi and wall thickness t diagram, Figure 2 for the bending radius r and bending angle theta schematic, Figure 3 for the minimum radius of the radius

Illustration.

Fig.1 Schematic diagram of pipe diameter phi and wall thickness t […]