The forming of copper alloy has its own technical and economic characteristics. In industry, the process with the lowest production cost and the highest blank accuracy is the die-casting process. The die-casting process can produce the most complex structure of the blank.
Due to the common shrinkage and porosity problems in the blank produced by the die-casting process, a good continuous casting and forging process in my country has not yet appeared at that time, and it is impossible to produce high-quality copper alloy blanks without internal pores.
Another factor is that since the initial casting temperature of the copper alloy is selected to be around 1000-1100 degrees, ordinary die-casting mold materials cannot withstand it at all. The low life of copper alloy die-casting molds is still a problem that should be paid attention to in production.
Therefore, due to the influence of these factors, and only because the life of copper alloy precision die forging dies can generally exceed 10,000 pieces, the superplastic forming precision die forging technology of copper alloy has its strong vitality. Industrial economy.
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