Breathable steel can be processed using precision metal carving machines. Some processing precautions are as follows:

After grinding or any heavy cutting, micro holes may be blocked. Soft cutting methods such as wire cutting, electric pulse, and laser should be used (soft cutting refers to a cutting mode that has a slight force on the workpiece but does not cause changes in the surface structure). During online cutting, the processing speed should be slightly increased, as too slow may generate arcs in the micropores, which is detrimental to the molybdenum wire. When there is a large machining allowance, hard cutting can be used, but a margin of 0.1-0.2mm must be left for soft machining to complete. There are various methods for restoring ventilation on the surface of the restored breathable steel:

1. The best treatment method is to use discharge machining and mirror machining to clean the iron filings that block the ventilation holes< Br style="color: RGB (69, 69, 69); font family: arial, sans serif, Tahoma, 'Microsoft YaHei'; font size: 14px; line height: 24px;"/>
2. By hand grinding, use 420 grit sandpaper to polish, and then use 1200 grit sandpaper to polish before completion< Br style="color: RGB (69, 69, 69); font family: arial, sans serif, Tahoma, 'Microsoft YaHei'; font size: 14px; line height: 24px;"/>
3. The processing process is not only carried out on the front side of the breathable steel inner mold, but also on the inner surface of the insert in the same way to restore the breathability of the insert< Br style="color: RGB (69, 69, 69); font family: arial, sans serif, Tahoma, 'Microsoft YaHei'; font-