How do Dongguan shield manufacturers control the flatness of the shield-hardware

As we all know, the flatness of the shielding cover is a link that Dongguan shielding cover manufacturers pay great attention to when producing the shielding cover. Normally a piece of nickel silver material, stamping out the shape of this product, the flatness tolerances of the top, bottom, left, and right sides are not easy to calculate. But how is it that when the shielding cover is produced, all control is within 0.05mm? As we all know, most metal materials are resilient. It is necessary to ensure that the bend of the shield cover of nickel silver is 90 degrees after folding, and the upper and lower sides are vertical, so that the flatness of the contact feet of the shield can reach the standard. For example, the height of the shielding cover is 1.2MM, and after bending, the height is 1.2MM. The verticality of one side is 90 degrees, and the verticality of the other side is 82 degrees. These two sides will be uneven. In addition, adding an additional leveling block to the mold is also a method used by many Dongguan shield manufacturers now. Control the corner of the bend to achieve verticality and increase flatness. If you have any need for the flatness of the shield, please call: Brother Qun will surely solve this problem.