Die steel welding scarring refers to the welding defects that occur during the welding process of die steel, which will adversely affect the performance and service life of die steel. Therefore, it is very important to find and repair the die steel welding scar in time. Some common fixes are described below.
Grinding Repair Method: This is a common restoration method that removes the bad parts of the scar surface by grinding the scar with a grinding wheel or sandpaper, and then grinding and polishing it so that the scar area is flat and consistent with the surface of the surrounding material. This method is suitable for cases with shallow scars.
2.Weld repair: For deeper scars, weld repair can be used. First of all, the scar area is sanded and cleaned, and then filled with suitable welding materials, and the welding temperature and welding speed should be controlled to avoid new welding defects. After the welding is completed, it is sanded and polished to make the repair part and the surrounding material surface smooth and consistent.
3.Heat treatment repair method: For some large scars or stress concentrations around the scar, heat treatment repair methods can be used. First, the scar is sanded and cleaned, and then heat treatment is carried out to change the tissue structure of the material by heating and cooling, reducing or eliminating stress concentration, so as to repair the scar.
4.EDM Repair: For some smaller and deeper scars, EDM repair can be used. First, the scar area is sanded and cleaned, and then repaired using an EDM machine to remove the material from the scar area by means of an EDM discharge, and then sanded and polished to make the repaired area and the surrounding material surface level and consistent.
5.Welding reinforcement method: For some larger and deeper scars, welding reinforcement method can be used. First, the scar area is sanded and cleaned, then filled with a suitable welding material and reinforced, to increase the strength and abrasion resistance of the repaired area. After the welding is completed, it is sanded and polished to make the repair part and the surrounding material surface smooth and consistent.
It is important to note that before the repair is carried out, a comprehensive examination and evaluation of the scar is required to determine the feasibility of the repair and the choice of method. During the repair process, the temperature, speed and process parameters of the repair also need to be strictly controlled to ensure the effect and quality of the repair. In addition, the repaired die steel also needs to be thoroughly inspected and tested to ensure that the repaired performance and service life meet the requirements.
In short, when there is a scar in the welding of the die steel, it can be repaired by grinding repair, welding repair, heat treatment repair, EDM repair and welding reinforcement. Before proceeding with the restoration, a thorough examination and evaluation of the scar is required to select the appropriate restoration method. During the repair process, the temperature, speed and process parameters of the repair need to be strictly controlled to ensure the effect and quality of the repair. The repaired die steel also needs to be thoroughly inspected and tested to ensure that the repaired performance and service life meet the requirements.