Pipe fitting water swelling forming process for automobile engine

Abstract

A pipe fitting water swelling forming process for an automobile engine includes the following steps of S1, pipe making, pipe cutting and deburring; S2, water swelling; S3, pipe cutting; S4, diameter determining; S5, cleaning; and S6, inspection. According to the process, a material is used for making a pipe, the pipe diameter matched with a water swelling mold is selected, heat treatment is performed after pipe making, then cutting is performed, and deburring is performed; then the pipe diameter is performed on the water swelling mold to abut against the two ends through a water shaft and a plugging part; the water shaft is provided with a water inlet, and jetting can be conveniently performed; the water shaft and the plugging part are correspondingly located on an upper mold cavity and alower mold cavity of the water swelling mold; the upper mold cavity and the lower mold cavity are each provided with an insert groove; and in the water swelling mold process step, the upper mold cavity, a middle mold cavity and the lower mold cavity can be adjusted according to the pipe diameter size.

Description

technical field [0001] The invention relates to the technical field of water swelling, in particular to a water swelling forming process for pipe fittings used in automobile engines. Background technique [0002] When the engine is working, the driver manipulates the opening of the throttle through the accelerator pedal to change the intake air volume and control the operation of the engine. The air entering the engine passes through the air filter to filter out dust and other impurities, then flows through the air flow meter, enters the power chamber along the throttle channel, and is distributed to each cylinder through the intake manifold; A portion of air enters the cylinder through the additional air valve or the idle speed control valve bypassing the throttle valve. The intake pipe must ensure sufficient flow area, avoid turning and section mutation, and improve the smoothness of the pipe surface to reduce resistance. For this reason, a linear air intake system is ado...

AI Technical Summary

Problems solved by technology

For this reason, a linear air intake system is adopted on a high-performance gasoline engine. While linearizing, the airway throttling and the length of the intake pipe should also be reasonably designed, and the volume of the pressure stabilizing chamber should be arranged appropriately, in order to achieve high speed, For the purpose of high power, the disadvantages of the existing technology are that because the wall of the general product is very thin, the manufacturing precision is high, and a large number of tooling is required to ensure the precision of the product combination, the production process is complicated, the product appearance is not good, and Only some products with simple structure can be made, and relatively complex products cannot be completed. Most of the parts can only be made by precision casting. Short life, difficult to guarantee accuracy