Design Specifications for Stamped Part Wall Thickness and Hole Spacing

From the perspective of material compatibility, wall thickness design for stamped parts made of different materials shall comply with distinct criteria. For cold-rolled steel sheet stampings, wall thickness shall be determined according to yield strength and ductility, so as to avoid cracking during stamping and satisfy subsequent load-bearing demands. Aluminum alloy features relatively low hardness, so a reasonable thickness margin shall be reserved in design to prevent post-forming deformation.

It is also essential to align wall thickness with stamping processes. Insufficient thickness easily causes wrinkling and cracking during drawing, bending and other forming operations. Excessively thick walls raise equipment load and energy consumption, while excessive forming force will accelerate die wear.

Moreover, wall thickness design shall take actual service conditions into account. For core stampings bearing high-frequency loads, thickness shall be strictly defined per strength calculation standards to prevent long-term fatigue failure. For cosmetic parts, designers need to balance forming precision and surface flatness to eliminate appearance defects caused by uneven wall thickness. Precise control of wall thickness and hole spacing standards serves as a fundamental prerequisite to reconcile product performance and production efficiency.

As a key parameter for assembly and positioning, hole spacing directly influences assembly efficiency and structural reliability, making it an indispensable part of stamped part design specifications.

Hole spacing design shall prioritize assembly compatibility. Strict tolerance control is required for mounting holes and positioning holes. Excessive spacing deviation results in misalignment, assembly jamming or incomplete fitting, which severely lowers production efficiency. Hence, baseline dimensions and tolerance grades shall be clearly specified in design based on assembly demands, ensuring perfect fit with mating parts.

In addition, structural strength must be considered in hole layout. Unduly narrow hole spacing causes local material thinning and stress concentration, making parts susceptible to fracture under external force. Excessively wide spacing increases product size, leading to material waste and higher manufacturing costs.

The coordination between hole spacing and wall thickness is highly critical. Thicker walls allow moderate adjustment of hole spacing on the premise of guaranteed hole edge strength. For thin-wall stampings, hole spacing must be tightly restricted to avoid further structural weakening and compromised overall stability.