Analysis of Damage of Die Casting Die
Die casting is a useful process of forming metal parts which is efficient, economical and versatile. The dies used for die casting create parts with superior surface finish, superior dimensional accuracy, and superior mechanical properties. Under certain conditions, the die casting die may be damaged during the die casting process. The die casting die damage has caused huge economic losses to the die casting industry, so that the analysis and prevention of the die casting die damage has become a very important issue.
Firstly, the causes of die casting die damage can be divided into three categories. The first is improper die casting processes, such as excessive pushing force, excessive shot speed and improper die casting temperature, etc. Improper die casting processes will lead to die deformation and fracture.The second is the poor design of die casting die, such as insufficient parting line reinforced strip and insufficient heattreatment, etc. Poor die design will cause die surface to martensite and break under severe die casting pressure. The third is the raw materials and die casting die grinding defects.
Secondly, the effects of die casting die damage can also be divided into three categories. One is the low production efficiency, which will affect the production output and the on-time delivery. The second is the die life. The die of the die casting machine is relatively expensive, if the die life is short, the maintenance of the die casting machine will be increased and the cost will be increased. The third is the bad quality of the die casting parts. The defective parts need to be rejected, which will bring economic losses.
Finally, measures to avoid and prevent die casting die damage can also be taken from three aspects. Firstly, from the perspective of die casting process, it is necessary to design reasonable casting parameters and use suitable process parameters to reduce the occurrence of die casting die damage. Secondly, from the perspective of die design, it is necessary to further optimize the die structure and adopt reasonable heat treatment process to improve the strength and toughness of the die casting die. Thirdly, from the perspective of raw material and die grinding, it is necessary to select suitable materials and carefully grind the die casting die.
In conclusion, die casting die damage plays an important role in the die casting industry, and the analysis and prevention of damage is of great significance. To avoid and prevent die casting die damage, comprehensive consideration should be taken from the perspective of die casting process, die design, raw material and die grinding.
