The cutting fluid is introduced into the center of the grinding wheel, and the cutting fluid can directly enter the grinding area to exert effective cooling and prevent burns on the surface of the workpiece.
3. Reduce the quenching stress after heat treatment to a low limit, because the quenching stress and the net-like carbonized structure under the action of the grinding force, the structure of the phase change will easily cause the workpiece to crack. For high-precision molds, in order to eliminate the residual stress of grinding, low temperature aging treatment should be carried out after grinding to improve toughness. 4. To eliminate the grinding stress, the mold can be immersed in a salt bath at 260~315℃ for 1.5min, and then cooled in 30℃ oil, so that the hardness can be reduced by 1HRC, and the residual stress can be reduced by 40~65.
5. For the dimensional Plastic Stool Mould is 0.01 The precision grinding of precision molds within mm must pay attention to the influence of ambient temperature and require constant temperature grinding. From the calculation, it can be seen that for a 300mm long steel piece, when the temperature difference is 3℃, the material has a change of about 3, the deformation pereach finishing The process needs to fully consider the influence of this factor.
6. Electrolytic grinding is used to improve mold manufacturing accuracy and surface quality. During electrolytic grinding, the grinding wheel scrapes off the oxide film: instead of grinding the metal, the grinding force is small, the grinding heat is also small, and there will be no grinding burrs, cracks, burns, etc. The general surface roughness can be better than Ra0 n addition, the wear of the grinding wheel is set to be small, such as grinding cemented carbide.
https://www.solidcomould.com/product/household-mould/stool-moulding/
3. Reduce the quenching stress after heat treatment to a low limit, because the quenching stress and the net-like carbonized structure under the action of the grinding force, the structure of the phase change will easily cause the workpiece to crack. For high-precision molds, in order to eliminate the residual stress of grinding, low temperature aging treatment should be carried out after grinding to improve toughness. 4. To eliminate the grinding stress, the mold can be immersed in a salt bath at 260~315℃ for 1.5min, and then cooled in 30℃ oil, so that the hardness can be reduced by 1HRC, and the residual stress can be reduced by 40~65.
5. For the dimensional Plastic Stool Mould is 0.01 The precision grinding of precision molds within mm must pay attention to the influence of ambient temperature and require constant temperature grinding. From the calculation, it can be seen that for a 300mm long steel piece, when the temperature difference is 3℃, the material has a change of about 3, the deformation pereach finishing The process needs to fully consider the influence of this factor.
6. Electrolytic grinding is used to improve mold manufacturing accuracy and surface quality. During electrolytic grinding, the grinding wheel scrapes off the oxide film: instead of grinding the metal, the grinding force is small, the grinding heat is also small, and there will be no grinding burrs, cracks, burns, etc. The general surface roughness can be better than Ra0 n addition, the wear of the grinding wheel is set to be small, such as grinding cemented carbide.
https://www.solidcomould.com/product/household-mould/stool-moulding/
