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Processing method of WYL welded elbow
Time:2022-10-19 12:12:13    Author:yingli

1. Punching method: extend the pipe end to the required size and shape, and use a tapered core on the punch.


2. Bulging method: one is to put the rubber into the pipe and extrude the upper part of the pipe with a punch, and the other is hydraulic expansion.


3. Forging method: pull out one end or part of the pipe with a die forging machine to reduce the outer diameter of the pipe.