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Cold heading is a forging forming method that thickens the top of a bar or wire at room temperature.
Cold heading is mainly used to manufacture bolts, nuts, nails, rivets, steel balls and other parts.
The forging blank material can be beryllium copper, aluminum, carbon steel, alloy steel, stainless steel and titanium alloy, etc. The material utilization rate can reach 80-90%.
Cold heading is mostly carried out on special cold heading machines, which facilitates continuous, multi-station, and automated production.
The cold heading machine can sequentially complete the processes of cutting, heading, accumulation, forming, chamfering, thread rolling, diameter reduction and trimming.
The production efficiency is high, reaching more than 300 pieces/minute, and the diameter of the largest cold heading workpiece is 48 mm.
The bar material is automatically fed to a certain extent by the feeding mechanism. The cutting mechanism cuts it into blanks, and then is sent to the accumulation and pressing and punching stations in sequence by the clamp transmission mechanism for cold heading forming.
Link to this article：Cold heading
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