Die-casting Die Lifespan
The service life of die casting molds is affected by multiple factors, including material, process, and maintenance. While there's no fixed value, it can be extended through technical optimization. This can be categorized into the following three key factors:
1. Typical Service Life: Under normal use and maintenance, aluminum alloy die casting molds can last from 100,000 to 500,000 cycles. Using high-quality die steel and optimizing the heat treatment process can extend the service life to 500,000 to 1,000,000 cycles, meeting long-term production needs.
2. Factors Affecting Die Lifespan:
Material Selection: High-quality die steel offers high hardness and wear resistance, allowing it to withstand high pressure and high temperature environments, reducing die wear.
Heat Treatment: Vacuum quenching and nitriding processes can improve die hardness and fatigue resistance, extending service life.
Maintenance: Regular maintenance, including nitriding, lubrication, and cooling system cleaning, can reduce thermal stress, deformation, and wear, extending die service life. 3. Ningbo Jieda Molding & Machine Co., Ltd. ensures the stable performance of die casting molds during long-term production through advanced material selection and systematic management, meeting customers' high demands for mold durability.
What is the difference between castings and die castings?
1.Process Principles: The Essential Difference Between Pressure and Gravity
Casting: This falls under the category of gravity casting. Molten metal (such as aluminum, iron, copper, etc.) is poured by gravity into a pre-prepared sand, metal, or plaster mold, where it solidifies naturally through cooling. Its core principle is "gravity filling," resulting in slow metal flow. It is suitable for producing large, thick-walled, or simple parts (such as machine tool bases and pipe fittings).
Die Casting: This falls under the category of high-pressure casting. Molten metal (such as aluminum, zinc, magnesium, etc.) is rapidly injected into the cavity of a precision die-casting mold under high pressure (40-200 MPa). It solidifies through rapid cooling. Its core principle is "high pressure + high speed," resulting in rapid metal flow. It is suitable for producing thin-walled, complex, and high-precision parts (such as automobile engine blocks, mobile phone housings, and motor end caps).
2.Table Description
Dimension | Casting (Gravity Casting) | Die Casting (High-Pressure Casting) |
---|---|---|
Production Efficiency | Low: Relies on gravity filling, long cooling time (minutes), long cycle time per piece | High: High pressure + high-speed filling, short cooling time (seconds), short cycle time per piece (e.g., aluminum die-casting parts can reach 10-30 seconds/piece) |
Mold Cost | Low: Sand molds, plaster molds are low-cost (suitable for small batches) | High: Die casting molds require precision machining (e.g., CNC, EDM), high cost (suitable for large batches) |
Batch Adaptability | Suitable for small batches, multi-variety production | Suitable for large batches, standardized production |
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