Forged pipe fitting trimming-free precision forging technology

Abstract

The invention relates to a forged pipe fitting trimming-free precision forging technology. The forged pipe fitting trimming-free precision forging technology comprises the steps including (1) feeding,(2) heating, (3) upsetting, (4) rough forging, wherein a rob obtained after upsetting is subject to rough forging through a rough forging press (4), a next heated rob is subject to upsetting operation through the same rough forging press (4) while rough forging is carried out, a semi-finished product obtained after rough forging passes through an articulated chute (5) and an elevator (6) to entera refined forging press (7), (5) precision forging, and (6) edge cutting. The forged pipe fitting trimming-free precision forging technology has the advantages of high production efficiency and highforging product quality.

Description

technical field [0001] The invention relates to a manufacturing process of a forged pipe fitting, in particular to a precise forging process of a flash-free forged pipe fitting, and belongs to the technical field of forged pipe fittings. Background technique [0002] At present, for small-sized pipe fittings with relatively complex shapes such as tees, crosses, and elbows, they are manufactured by forging; while the conventional die forging method has large flashes, so trimming operations are required to adjust, thus forming Forged pipe fittings without flash; the conventional forging process steps are: after the bar is heated, it is put into the mold for forging, and the pressure makes the metal flow and fill the cavity; after forging, the blank is flushed to remove the flash and the remaining material is completed. process. [0003] However, for the above-mentioned process steps and the assembly line used in the corresponding process, there are the following steps: 1. The...

AI Technical Summary

Problems solved by technology

[0003] However, for the above-mentioned process steps and the assembly line used in the corresponding process, there are the following steps: 1. The feeding efficiency is low. Nowadays, the conventional method is manual feeding, and the heating furnace cannot handle bars of different specifications, so it is necessary to equip multiple Second, there is a lack of forging and upsetting operations on bars, so defects such as segregation and porosity in bars cannot be eliminated, which is not conducive to improving product quality; third, the quality of once-forged products is often Failure to meet customer requirements;

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