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The main mold design head is pre-formed, the pier is rounded, and a cross-shaped exhaust groove is formed on the right end face of the front core, and a groove is also formed in the corresponding position of the circumference, so that the accumulated air will flow from the groove. Smooth discharge has fundamentally eliminated quality hazards. It has played a key role in improving head flow and improving the end face roughness of the product. A vent hole is added to the center of the convex mold cavity, thereby avoiding an air gap between the bottom of the mold cavity and the workpiece red ridge during the forging, which is important for eliminating the scar at the head end. The work position die, wherein the front guide mold is both a reduced diameter leading mold and a pre-but head forming mold. The above-mentioned process and tooling have been produced in large quantities and have achieved very satisfactory results. After the head has been rounded into a spherical shape in the working position, the station is directly forged and formed, and the formed end face is smooth and smooth without scars. Pit and other phenomena, surface roughness is mixed. Forged products, straight grain blanks, thread blanks, stable size, less than the taper of the billet, the contour of the cone at the intersection of the two rods is clear, regardless of dimensional accuracy, surface roughness and appearance quality. Good effect. Due to process improvement, we have achieved great success in reducing production costs and ensuring product quality, which has enabled our plant to obtain certain economic benefits.
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Ningbo Autrends Prevention Products Co., Ltd , https://www.autrendsafety.com