In 1838, die-casting equipment was invented to make molds for movable type printing. The first patent related to die-casting was issued in 1849. It was a small, manual machine used to produce lead type for printing presses. In 1885, Otto Mergenthaler invented the Linotype typesetter, a machine that could die-cast a whole line of text into a single lead type, which brought unprecedented innovation to the printing industry. After the printing industry entered large-scale industrialization, traditional hand-pressed type molds were replaced by die-casting.
Around 1900, the entry of typesetting into the market further improved the automation technology of the printing industry, so sometimes more than ten die-casting machines could be seen in newspaper offices. With the continuous growth of consumer products, Otto's invention has gained more and more applications. People can use die-casting to manufacture parts and products in large quantities. In 1966, General Dynamics invented the precision die-casting process, which is sometimes also called double-punch die-casting.
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