Breathable steel thin gas steel medium porosity PM - 35 breathable steel bar steel, plastic die steel porous exhaust on or after any heavy cutting, grinding may be clogging pores. Should be used such as cutting, electrical pulse and laser cutting processing software, in wire-cutting processing should be slightly improve the processing speed. Can use hard machining large machining allowance, but shall leave 0.1 ~ 0.2 mm allowance to soft processing to complete.

, in the restoration of breathable steel surface for air permeability recovery, the technique of processing a variety of:

1. The best approach is to use the electric discharge machining method, the mirror surface treatment to clear the blockage of the air holes iron filings.

2. With the hand grinding methods, grinding sandpaper no. 420, 1200 to grinding sand paper polishing after completion.

3. The process is not khan breathable steel of the front module, insert the medial surface of the process, should also be the same and to restore the permeability of inserts.

4. To connect with breathable steel insert is a vent in the mold.