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Piston rod features joint forging technology
Jul 31, 2018

In the production of piston rods, different forging techniques can be used. In comparison, the forging die for joint forging is different from the ordinary forging die design, because the general final forging groove is closed, and now the joint forging is open. Die forging, so you must consider the connection with the swaged part that you did not participate in, and also need to consider the support of the rod.


When using this forging technique, the designed mold is different. Usually it is larger than the forging die of the forged piston rod head, and the inclination is 7°. Because the joint forging forgings is not easy to flip, it is impossible to remove the pulverized coal in the cavity of the lower mold, and the mold can only be released by increasing the inclination. Further, the free forged portion and the swaged portion are joined by a step, and the stem portion of the swaged portion and the free forged portion have different rod diameters.


In addition, when selecting the module, first determine the width of the mold according to the minimum mold wall thickness, and increase the module in the direction of the fiber in the direction of the fiber to ensure that the upper mold and the lower mold can have sufficient area to withstand the impact force. . In this way, the length of the piston rod that can be formed is longer, which reduces the amount of machining. Also, let the center of gravity of the piston rod be as close as possible to the mold.http://www.xhychromerod.com/