Arc-shaped forge piece machining system and method

Abstract

The invention discloses an arc-shaped forge piece machining system and method. The machining system comprises a forge piece machine used for machining an arc-shaped forge piece and a cold deformation die used for conducting cold deformation and straightening on the arc-shaped forge piece, and a die cavity with the same shape and size as a finished arc-shaped forge piece is formed in the cold deformation die. According to the arc-shaped forge piece machining system, the cold deformation die is additionally arranged, the die cavity of the cold deformation die is adopted for limiting the appearance of the arc-shaped forge piece, stress of the arc-shaped forge piece is stable, meanwhile, the required arc-shaped size, namely the size of the finished arc-shaped forge piece, is preset in the die cavity, it is further guaranteed that the arc-shaped forge piece is deformed in the product size direction meeting the requirement in the cold deformation process, the technical bottleneck that machining deformation and straightening of the arc-shaped forge piece are difficult is effectively solved, qualified products are produced, and remarkable economic benefits are obtained.

Description

technical field [0001] The invention relates to the field of arc forging, in particular to an arc forging processing system and a processing method. Background technique [0002] For arc-shaped forgings, due to their arc-shaped bending, the arc-shaped diameter is 3-4 meters, the arc-shaped length is 2.5-3.5 meters, and the overall length is 2.5-3.5 meters. There are protruding ribs as a whole, and the cross-section is T The arc size of the arc forging is not easy to control. Due to the influence of residual stress after quenching, the deformation is serious and the straightening is difficult; using the conventional cold deformation method, because the arc forging has a large radian, the force is unstable, which is easy to cause. The arc is straightened, and the diameter of the arc becomes larger, which does not meet the product size requirements. In addition, the cross section of the arc forging is T-shaped. The conventional cold deformation method can only eliminate residua...

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Problems solved by technology

[0002] For arc-shaped forgings, because of its arc-shaped bending, the arc diameter is 3-4 meters, the arc length is 2.5-3.5 meters, and the overall length is 2.5-3.5 meters. There are protruding ribs as a whole, and the cross-section is T The shape of the arc-shaped forging is not easy to control. Due to the influence of residual stress after quenching, the deformation is serious and straightening is difficult; the conventional cold deformation method is adopted, because the shape of the arc-shaped forging is large arc, the force is unstable, and it is easy to cause The arc is straightened, and the diameter of the arc becomes larger, which does not meet the product size requirements. In addition, the cross section of the arc forging is T-shaped. The conventional cold deformation method can only eliminate the residual stress from the ribs, and the effect is not good.

[0003] At the same time, the conventional cold deformation method is difficult to control the size. The large arc shape of the forging can easily lead to the scrapping of the product. In the process of subsequent machining into parts, the finished product cannot be processed due to stress deformation. Therefore, the production of the arc forging has been severely affected big limit

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