The dimensional accuracy of Aerospace Micro Screws should not be too high

The inner and outer walls of the workpiece after repeated stretching or the surface of the Aerospace Micro Screws part should be allowed to have traces generated during the stretching process. Unless there are special requirements for the workpiece, these traces can be eliminated by shaping or driving.

Set the hole position on the drawing to the main structural plane, keep it on one plane, or make the hole wall perpendicular to the plane, so that punching and trimming can be completed in one process at the same time.

The manufacturing accuracy of Aerospace Micro Screws includes the accuracy in the diameter direction and the accuracy in the height direction. In general, the accuracy of the tensioned parts should not exceed the specified value. The dimensions on the product drawings need to be marked to ensure the outer dimensions or the inner cavity dimensions, and the inner and outer dimensions cannot be marked at the same time.

When selecting wire drawing oil, in addition to the lubricity and cooling properties of wire drawing oil, the rust prevention performance, cost and easy maintenance of wire drawing oil should also be considered. It is easy to choose a base oil with relatively low viscosity to add anti-friction additives to wire drawing oil, which can achieve lubrication and friction reduction, as well as good cooling and easy filterability. However, the problem with wire drawing oil is that it has a low flash point, high temperature during stamping, easy deformation, high risk factor, fast evaporation, and high corresponding user costs. Therefore, if conditions permit, wire drawing oil with high compressibility and wear resistance should be selected as much as possible.