Characteristics of Casting Process

一、 The essential characteristics of casting technology
The essence of casting technology is the forming method of obtaining the desired product by injecting molten metal into a specific shaped mold cavity, cooling and solidifying it. The core feature of this' liquid forming 'endows the casting process with three unique advantages:
1. Ability to handle complex geometry
Casting can achieve complex structural forming that other processing methods cannot match. Taking single crystal blades of aircraft engines as an example, the complexity of their internal precision cooling channels can only be perfectly presented through investment casting technology. This highly inclusive three-dimensional spatial form makes casting the ultimate solution for precision component manufacturing.
2. Deep development of material properties
The unique solidification and crystallization process in the casting process provides a unique opportunity for controlling material properties. Directional solidification technology can obtain columnar crystal structures growing along specific directions by controlling the cooling direction of the metal liquid, which can increase the endurance strength of high-temperature alloys by more than 30%. Modern semi-solid casting significantly improves the micro defects of traditional casting by precisely controlling the solid-liquid two-phase ratio.
3. The ultimate manifestation of economies of scale
The reuse rate of sand casting molds can reach hundreds of times, and the service life of die-casting molds can even exceed one million molds. This feature of "the first mock examination with many pieces", combined with the automated production line, can make the cost of a single piece drop exponentially. The large-scale production of automobile engine cylinder blocks benefits from this, with a daily output of over 2000 pieces per line.

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