Heat treatment distortion may occur after forgings undergo annealing, normalizing, quenching, tempering and surface modification heat treatment. The root cause of the distortion is the internal stress generated during the heat treatment of the forging,
ape, and position of the surface of the parts after machining and the ideal geometric parameters required by the drawings.
The shape and structure of the die forging is an important basis for formulating the die forging process plan. For forgings with similar shapes, the die forging process and the structure of the forging die used are basically the same.
The review of forging quality problems is a very complex and wide-ranging work. It can be reviewed according to the cause of the defect, the responsibility of the defect, and the location of the defect. Therefore, it is necessary to Categorize it.
The train wheel is one of the most important components of the rail vehicle running the department, and its product quality is directly related to the running safety of the rail vehicle.
Aluminum flange, as its name implies, is made of aluminum and is preferred in some flange systems because it weighs much lighter than steel flanges of the same size. There are several advantages to using aluminum flange compared with other types of metal flange.
The inspection before solution heat treatment is a pre-inspection process for the finished product specified in the surface quality and external dimensions
After inspection, the size of the forgings developed in the first batch did not meet the requirements of the forging drawings, the local filling of the forgings was not good
Forgings need to be uniform from piece to piece, free from porosity, excess space, inclusions, or other defects. The components produced by this method have a high ratio of strength to weight.
Aluminum alloy forgings are mainly used in industrial sectors that require a large degree of lightweight. According to the current application conditions in various countries, the main market distribution is as follows.
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