Basic knowledge of diamond wire drawing die:

The cause of the ring groove: that is due to the resistance of the metal wire into the hole of the cross section changes, and the tension of the metal wire during the vibration of the periodic pressure, resulting in the fatigue failure of the line mode.

The appearance of the wire drawing die ring, and the wear of the die hole is aggravated. Because of the drawing die of die hole ring groove, ring groove for loosening and spalling of the core material of small particles, like abrasive grinding work area and runoff. And the metal wire entering the die hole, which is the same as the mold bar, which aggravate the wear of the die hole. At this point, the friction between the die and the metal wire is increased, resulting in high temperature, which is exacerbated by the wear process.

Generally speaking, drawing die in the process of wear and tear, can be divided into three stages.

The first is die hole surface sharp point wear stage,

Second is a low and stable rate of wear phase,

Third with the die hole surface wear grooves, reached a high stage of wear.