COLD HEADING DIE CORE NUT DIE
The cold headingdie bears the heavy pressing load, and its female die surface bears high-pressure stress so that the die core material is required to have high strength, toughness and wear resistance, tungsten carbide with high cobalt content(Most grades applied to the heading die core contains cobalt more than 12%, some even reach up to 25%) can perfectly meet this requirement, so all better heading die with long service time use tungsten carbide as die core material, and the outer case of the die is made of hot working die steel (the hardness after heat treatment is about HRC 45). The core is inserted the outer case the core by cold pressing or hot pressing method, so as to make the core and case combine closely, and the outer case causes certain compressive stress to the inner core, which improves the service conditions of the die and extends the service life time of the die.
Cold headed partsdie for fastener industry can be divided into cutting die, forming die, and trimming die as per the different production process of a fastener product, and forming die includes the first station, second station, third station, up to the fifth station for some complicated items. Divided by detailed fastener products, there are bolt die, nut die, drill point die, nail die etc.
Tips for heading forgingdie carbide grade selection:
Xiamen Betalent Carbide Co.,Ltd is a professional carbide tool manufacturers, which focus on designing, producing and selling cemented carbide productsand tungsten carbide products. Want to know more, please contact us.
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