Die Casting

1838 : The first prototype of die-casting appeared in the US, using a hand-pressed method to make toys with low precision.

 

2. Growth Stage (Mid-20th Century - 1970s): Automotive Integration and Mass Production

Material: Aluminum alloy became the mainstream, used in automotive engine blocks and transmissions, due to its lightweight and easy-to-form properties.
Equipment: Fully automatic die-casting machines became widespread, allowing continuous production and compatible with automotive assembly lines.
Molds: Using heat-resistant steel increased mold life from a few thousand cycles to tens of thousands, reducing costs.

 

3. Precision Period (1980s-2010s): High-End, Low-Defect

Intelligence: Sensors were added to monitor temperature and pressure in real time, and robotic part significantly reduced defect rates;
Design: Multiple parts were integrated into a single die-cast part, reducing assembly.

 

4. Upgrade Period (2020s-Present): Green + Large-Scale

Environmental: Low-temperature die-casting reduces energy consumption, and waste recycling reduces pollution;
Large-Scale: Giant die-casting machines over 10,000 tons were built to form entire rear floors and battery housings for new energy vehicles in a single process;
Diversification: Composite die-casting of aluminum, steel, and plastic was experimented with to meet the demands of high-end manufacturing.

In short, die-casting's evolution from "making small toys" to "making large automotive components" was achieved through the gradual upgrading of equipment, materials, and the process has now become a key process in new energy and high-end manufacturing.