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animation_offset=""] Heading is a processing method that uses forging machinery to apply pressure to metal blanks to produce plastic deformation to obtain forgings with certain mechanical properties, certain shapes and sizes. Forging (forging and stamping) is one of the two major components. Forging can eliminate defects such as loose as-cast during the smelting process and optimize the microstructure. At the same time, due to the preservation of complete metal flow lines, the mechanical properties of forgings are generally better than castings of the same material. For the important parts of related machinery with high load and severe working conditions, forgings are mostly used except for simpler shapes that can be rolled, profiles or welded parts. Manufacturing Method of Cold Heading Dies Cold Heading Die s and processing method, which includes a core, a molded sleeve, a screw sleeve, and an ejector rod. The core includes a core head, a cushion block, a core-forming part, and a core tail. Each part of the core is provided with a through-hole. This cold heading mold core is installed in the core through an interference fit. When the core is installed, the core and the mold sleeve must be installed with good concentricity. If the concentricity between the core and the mold sleeve is large, The deviation will affect the quality of cold heading products on the one hand and the service life of the core and the sleeve on the other. In addition, because the mold core is a wearing part, it needs to use a large thrust to withdraw the mold core from the mold sleeve after large wear of the mold core and then replace the mold core again. Due to the interference fit between the mold core and the mold sleeve, it is also easy to cause damage to the mold sleeve during the replacement process, affecting the assembly accuracy and actual service life between the mold core and the mold sleeve. How Long Is the Service Life of Cold Heading Dies? How long the cold heading dies can be used depends on whether the material used in the mold is good or bad, whether the mold structure is reasonable or not, and the strength of the processed material. If it is non-ferrous metal materials such as copper and aluminum, the service life of the mold will be much longer, if it is iron material, the service life of the mold will be much shorter. How to Choose the Grade of Hard Alloy Cold Heading Die? How to choose the brand of hard alloy cold heading die reasonably?Under the wear-resistant working conditions of hard alloy cold heading die under impact or strong impact, the commonality is that the hard alloy has good impact toughness, fracture toughness, fatigue strength, bending strength and good wear resistance. Usually, medium, high cobalt and medium and coarse grain alloy grades are used, such as YG15C, YG20C, YG25C and other grades.Generally speaking, the relationship between wear resistance and toughness of cemented carbide is contradictory: the increase in wear resistance will lead to a decrease in toughness, and the increase in toughness will inevitably lead to a decrease in wear resistance. Therefore, when choosing the alloy grade of Jinboshi cold heading die, it is necessary to meet the specific requirements according to the processing object and processing working conditions.If the selected brand is prone to cracking and damage early in use, a brand with higher toughness should be selected; if the selected brand is prone to early wear and damage during use, a brand with higher hardness and better wear resistance should be used . The following grades: YG15C, YG18C, YG20C, YG22C, YG25C from left to right, the hardness is reduced, the wear resistance is reduced, and the toughness is improved; otherwise, the opposite is true. The requirements of the hard alloy cold heading die on the equipment.Attention should be paid to the cold heading mold during use:a. The stamping machinery should be in good working condition; b. The matching seat of the mold support should not be scratched or tilted; c. The working end faces of the female mold and the punch should be balanced; d. When adjusting the equipment, it is not allowed to hit the carbide die with an punch; e. When cold heading die or extrusion die works, it is better to use proper lubricant. 3. The requirements of the hard alloy cold heading die for the processed parts The surface of the processed material of cemented carbide round rods should be smooth and free from defects such as scale, cracks and scratches. The material with high surface quality is not easy to break during cold heading, and it is not easy to scratch the mold. The surface quality of the parts is good. [/fusion_text][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]