Metal Stamping Part Shielding Case

The shielding shell also produce by metal stamping technology. in modern electronic products, shielding shell play a vital role, they not only protect internal components from external influences, meanwhile
effectively prevent signal interference. so, what principles should we follow when designing metal stamping part shielding shells? how to choose the right material? let’s talk about this topic today!

Metal Stamping Part Shielding Shells Design Principles And Material Selection

Design Principles

When design metal stamping part shielding shells, we need to consider first thing is functionality.
The shielding shell’s main function is prevent electromagnetic interference (EMI) and radio frequency interference (RFI), so when design shielding shells must ensure that can effectively shield these interference sources.
Maybe you will ask, how to achieve it? design an effective metal stamping part shielding shell usually needs to consider the following points.
1: Geometric shape: The shielding shell shape should be as simple as possible, and avoid complex structures. it will reduce signal reflection and diffraction. let us imagine that a simple box is easier to block external signals than a complex polyhedron, right?
2: Grounding design: The shielding shell must connect well to the ground, this connection can effectively release the current, thereby reduce electromagnetic interference.
3: Air gap: in the shielding shell inside, the proper air gap will reduce interference transmission and keep the internal components working normally. let us imagine difference between close and gaps space. the air gap is like a filter that keeps interfering substances out.

Material Selection

The metal stamping part shielding shell material selection is a key factor. which will affect its performance. we know different materials have different conductivity and corrosion resistance. the following are some common material characteristics.
1: Metal materials: Commonly metal materials include aluminum, copper, and stainless steel. these metals have excellent electrical conductivity, it can effectively shield electromagnetic interference. for example, aluminum shells are lightweight, and relatively low cost, it is very suitable for most applications.
2: Conductive plastics: Conductive plastic materials become more and more popular in some lightweight parts. this material is lightweight, enhances shielding properties by adding conductive fillers. It is like putting a metal layer on plastic, which is beautiful and practical.
3: Composite materials: In recent years, composite materials have begun to gain attention. the composite materials combine metals and plastics advantage achieve better shielding effect.