When designing Hardware stamping parts, to effectively control their shapes, comprehensive considerations need to be made from multiple aspects.
1. Functional requirements and shape planning
First, clarifying the functional requirements of stamping parts is the basis for controlling the shape. If the stamping parts are used as connecting parts in mechanical structures, such as buckles, then their shapes should be designed according to the objects connected and the connection methods (such as plug-in connections and embedded connections). For example, in order to achieve a stable plug-in connection, the shape of the buckle may be designed as a cantilever structure with a specific angle and arc, which ensures the firmness of the connection while facilitating plug-in and pull-out operations. For stamping parts as supporting structures, their shapes should take into account the direction and size of the pressure they bear, and may be designed as a frame structure with reinforcing ribs or a specific shape to improve the pressure resistance.
2. Restrictions and optimization of the shape by the stamping process
The stamping process itself has important restrictions and influences on the shape of stamping parts. When designing the shape, the feasibility of stamping should be considered. For simple single-process stamping such as blanking and punching, the shape should be as simple and regular as possible, avoiding too many complex curves and small internal structures. For example, avoid designing too small hole spacing or too sharp internal angles, as this may lead to difficulties in mold manufacturing, material cracking or uneven deformation during stamping. If a composite stamping process is used, the complexity of the shape can be appropriately increased, but the structure and manufacturing difficulty of the mold should also be considered. For example, when designing the shape of a stamping part that undergoes both punching and bending processes, the position of the holes should be arranged reasonably to avoid setting holes in the bending deformation area to prevent the holes from deforming during the bending process.
3. Material properties and shape adaptability
Different materials have different deformation behaviors during the stamping process, which also needs to be considered in shape design. For example, steel has a higher strength. When designing the shape, for parts with larger deformation (such as deep drawing areas), the transition fillet radius should be reasonably designed to avoid excessive thinning or even cracking of the material. Aluminum is relatively soft and easy to deform. For parts that require precise shape control (such as surfaces with high flatness requirements), it is necessary to consider controlling deformation by adding support structures or a reasonable stamping sequence.
4. Mold manufacturing and shape realization
The mold is a key factor in realizing the shape of stamped parts. When designing the shape of stamping parts, the processability of mold manufacturing should be considered. The shape should be easy to achieve through mold manufacturing processes such as machining and EDM. Avoid designing mold cavities with complex shapes that are difficult to process. For example, avoid overly complex three-dimensional surfaces and try to decompose the shape into a combination of simple geometric shapes. This can reduce the cost and cycle of mold manufacturing, and is also conducive to ensuring the accuracy of the shape of stamping parts. Through the above comprehensive considerations, the shape of Hardware stamping parts can be effectively controlled when designing them.
