Manual de Fabricação de Chapas Metálicas – Conformação

Sheet Metal Manufacturing Manual – Forming

Section 1: Partial Shear

1. Definition:

Applying a certain pressure in a direction perpendicular to the surface of the material to make the material flow in the direction of the force, resulting in a forming effect.

2. Functions:

Positioning, as for half-cut welding.

Riveting, as for riveting electrostatic conductive rails.

3. Processing methods:

NCT: using regular tool combinations (half downward cutting) or specially developed tools for processing.

Pre-processing: special half cutting can be used to achieve plate pressing and easy die making (when the batch size is not large).

4. Precautions:

The height of the half cut is best not to exceed 0.6T.

Section 2: Bridge Design

II. Forming methods for shims

Due to the fixed shape of the shims, their size has little effect on their function as long as the height and central position are guaranteed. Therefore, several shared mold specifications were designed.

In case of similar sizes (±1mm), a similar shared mold specification can be used. For shapes with greater differences and without similar specifications from shared molds, the pressure plate mold design method can be used for forming.

Wedge molds for sample production are generally divided into pressure plate molds and shared molds.

Pressure plate molds have a fast forming speed and can form multiple shims at once, but they are not flexible and can only be used to form a specific part.

Shared molds utilize the common characteristics of shims and can be used repeatedly to form shims with the same specifications, reducing production costs.

Pressure Plate Mold (Preprocessing)

Below is an example of a shim (NKB83001A), and note that the material for a circular block can be obtained directly from the waste material of the previous circular block.

The module stacking diagram is shown in Figure 9.

Conteúdo relacionado

Back to blog

Leave a comment

Please note, comments need to be approved before they are published.