Not long ago, the tool bar box of EDM finally had time for high-frequency heat treatment, unfortunately, the high-frequency machine power of 15KVA was too weak for 2.5kg alloy steel, and it took about 12 minutes to heat to a dark red color, and then dipped into the waste hydraulic oil to quenched. The hardness can only be increased by a very limited amount, and I will continue to try the appropriate process in the future.
The surface is then polished using a grinder, and finally the V-groove is ground.
The surface is then polished using a grinder, and finally the V-groove is ground.
