During the intricate process of fabricating hardware stamping components, a series of meticulous procedural steps must be followed. Even the slightest lapse in vigilance during these operations can result in adverse events, such as fracturing and tearing of the hardware stamping components, compromising their seamless functionality.

I. Understanding the Causes of Fractures in Hardware Stamping Components

Excessive Local Tensile Stress

As the hardware stamping components undergo the processing journey, they might experience heightened local tensile stress. The interplay between internal stress and external impact can cause significant localized bulging deformation, leading to fractures. This phenomenon occurs due to the mechanics involved in manipulating hardware stamping dies.

Inadequate Execution of Forming Process Parameters

During the phase of component formation, it is crucial for the die cavities and material-feed cores to remain precisely aligned. As the machine slide moves downward, the pressure applied to the sheet material induces plastic deformation. Adhering to this principle is essential. Failure to adjust the machine’s pressure promptly according to procedural requirements by technical personnel can lead to performance instability and subsequently, fracturing of the stamping components.

Flawed Flange Forming Mold Design

The mold is designed as a dual-cavity unit for both left and right components, accommodating flange forming and shape-molding attributes. The component’s intricate complexity, with small curved surfaces and specific alignment requirements between the material-feed core and the forming surface of the die, imposes unique structural conditions on the mold. This necessitates extensive forming travel while maintaining a relatively small material-pressing surface area, increasing the likelihood of fractures.

II. Preventive Measures to Mitigate Stamping Component Fractures

Employing Stamping Component Deep Drawing Technique

To maximize the contact surface between the punch and the blank, optimizing pressing surface geometry and distributing pressing force evenly across segments, orient the deep drawing direction accordingly. Additional steps include minimizing elongation, introducing process holes, and creating incisions.

Optimizing Structural Design of Stamping Components

During the design phase, enhance the radii of various fillets, reduce the actual depth of curved surface shapes in the deep drawing direction, ensure uniform depths, and pursue relatively simple geometries with smoothly transitioning contours.

Strategic Stamping Component Die Design

Incorporate well-designed deep drawing ribs, establish larger radii for mold corners, and maintain an optimal clearance between the punch and the die.

In the process of fabricating hardware stamping components, various defects, including fractures, can arise. Overcoming these challenges requires diligent efforts from manufacturing personnel, involving meticulous design and careful execution. By doing so, the occurrence of unfavorable events in hardware stamping components can be preemptively minimized, ultimately enhancing the overall quality of the end products.

Hardware Stamping
Hardware Stamping