Forging method of flanged shaft tube
A shaft tube and blank technology, which is used in engine components, metal processing equipment, mechanical equipment, etc., can solve the problems of inability to press, limit forging ratio, and high production cost of flanged shaft tube, reduce forging ratio, and increase pressing. Pressure, the effect of improving the big end forming effect
Active Publication Date: 2016-05-18
JILIN YUANFANG MACHINERY GROUP
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Problems solved by technology
At present, large-scale hydraulic presses are required to press larger flange shaft tubes, such as hydraulic presses above 2000T. Limited by the forging ratio, small hydraulic presses with a tonnage of less than 2000T cannot be pressed.
Since the cost of a large hydraulic press is far greater than that of a small hydraulic press, the production cost of the flange shaft tube is relatively high
Method used
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[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0042] The forging method of the flange shaft tube provided by the embodiment of the present invention specifically includes the steps of:
[0043] S01: Select round steel as the blank, and heat the blank for the first time:
[0044] There are many types of round steel. In order to improve the performance of the flange shaft tube, the material of the blank is preferably 40Cr. For the first heating of the blank, it is preferred to put the blank into a medium-f...
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Abstract
The invention provides a flange plate shaft tube forging method. The method includes the steps that round steel is selected to serve as a workblank, and the workblank is heated for the first time; performing is carried out on the workblank heated for the first time, wherein the preformed workblank comprises a first section and a second section, the first section is connected with the second section, and the diameter of the first section is larger than that of the second section; the preformed workblank is heated for the second time; accumulating and pressing are sequentially carried out on the workblank heated for the second time, a pressing ring is placed at the top end of the workblank after pressing is carried out, the workblank is pressed again, and thus flange plate forming is finished; the workblank subjected to flange plate forming is heated for the third time; an inner hole is formed in the workblank heated for the third time in a drilling mode; a through hole is formed in the workblank with the inner hole in a punching mode; tempering is carried out on the workblank which is punched to form the through hole, and a needed flange plate shaft tube is obtained. According to the flange plate shaft tube forging method, the flange plate shaft tube can be produced by means of a small oil press due to the facts that the forging ratio is reduced and the large-end forming effect of the flange plate shaft tube is improved, and production cost of the flange plate shaft tube is reduced.
Description
technical field [0001] The invention relates to the technical field of flange shaft tube forging, and more specifically, to a forging method of a flange shaft tube. Background technique [0002] The flange shaft tube is an important part of the car. For large-scale heavy-duty engineering vehicles, the required flange shaft tube is relatively large, and the flange diameter of the flange shaft tube reaches 295 mm, and the blank weight required for forming the flange shaft tube is relatively large, reaching 68 kg. At present, a large hydraulic press is required to press a larger flanged shaft tube, such as a hydraulic press above 2000T. Due to the limitation of the forging ratio, a small hydraulic press with a tonnage of less than 2000T cannot be pressed. Since the cost of a large hydraulic press is far greater than that of a small hydraulic press, the production cost of the flange shaft tube is relatively high. [0003] To sum up, how to use a small hydraulic press to produc...
Claims
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IPC IPC(8): B21J5/00B21J1/04B21J1/06B21K1/14
Inventor 郑怀刚钟致涛宫晋臣张学良蔡永和宗照东鲁相春陆洪刚李长波车广义孙成香高汝峰李军牛成林
Owner JILIN YUANFANG MACHINERY GROUP