Tips for molding large and small heads

bi concentric reducer (butt weld reducers) is a kind of pipe fitting for pipe diameter. The forming process usually adopted is reducing pressing, expanding pressing or reducing and expanding pressing. For some specifications of carbon steel concentric reducer, stamping can also be used.
Reducing/expanding forming: The reducing forming process of clamp reducer is to put the tube blank with the same diameter as the large end of con reducer into the forming die, and press along the axial direction of the tube blank to make the metal move along the die cavity and shrink to form. According to the size of the con reducer sch 40 variable diameter, it is divided into one-time pressing forming or multiple pressing forming.
Stamping forming: In addition to using steel pipe as raw material to produce concentric bell reducer, some specifications of concentric eccentric reducer can also be produced by steel plate using stamping forming process. The shape of the die used for stretching is designed with reference to the inner surface size of concentric pipe fitting, and the steel plate after cutting is stamped and stretched by the die.