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All fiber forging technology of cross shaft forging piece
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A cross-shaft and full-fiber technology, applied in the field of full-fiber forging technology, can solve the problems of increasing machining hours, affecting service life, and reducing mechanical properties, and achieve the effects of reducing machining hours, prolonging service life, and improving mechanical properties
Inactive Publication Date: 2016-09-21
ANHUI RUIJIE FORGING
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Problems solved by technology
This not only wastes a lot of raw materials, but also increases the man-hours of machining. The most important thing is that the forgings proposed in the design should not guarantee the technical requirements of the axial fiber of the cross axis as much as possible. Greatly reduced, affecting service life
Method used
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Embodiment 2
[0016] The full fiber forging process of cross shaft forgings, it comprises the following steps:
[0017] 1) The first fire presses the upsetting billet, uses the upper and lower flat anvils for vertical upsetting, the initial forging temperature is controlled at 1300°C, and the final forging temperature is controlled at 700°C;
[0018] 2) The second fire forming, the billet is forged and compacted, and the billet is trimmed in all directions. Finally, the upper and lower sides of the 90° triangular pressure shoulder are used to press in, and the opposite groove is pressed out by turning 90°. The initial forging temperature is controlled at 1200°C, and the final forging The temperature is controlled at 800°C;
[0019] 3) Forming in the third hot die; finally, the billet is elongated by four small circles to the size of the forging, the initial forging temperature is controlled at 1300°C, and the final forging temperature is controlled at 900°C;
[0020] 4) After inspection, t...
Embodiment 3
[0022] The full fiber forging process of cross shaft forgings, it comprises the following steps:
[0023] 1) The first fire presses the upsetting billet, and uses the upper and lower flat anvils for vertical upsetting. The initial forging temperature is controlled at 1200°C, and the final forging temperature is controlled at 800°C;
[0024] 2) The second fire forming, forging and compacting the billet, trimming the billet in all directions, and finally pressing in the upper and lower sides with a 90° triangular pressure shoulder, turning over 90° to press out the opposite groove, the initial forging temperature is controlled at 1100°C, and the final forging The temperature is controlled at 600°C;
[0025] 3) Forming in the third hot die; finally, the billet is drawn into four small circles to the size of the forging, the initial forging temperature is controlled at 1100°C, and the final forging temperature is controlled at 600°C;
[0026] 4) After inspection, the forgings mee...
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Abstract
The invention discloses an all fiberforging technology of a cross shaft forging piece. The all fiberforging technology of the cross shaft forging piece comprises the following steps: (1) the first fire, heavy pressing and upsetting-stretching of a blank: upsetting vertical materials by an upper flat anvil and a lower flat anvil; (2) the second fire, forming: forging through and compacting the blank, then finishing all directions of the blank, and pressing 90 degrees triangular pressing shoulders in from the upper face and the lower face, finally turning 90 degrees to form opposite grooves; (3) the third fire, forming in a mould: stretching the blank for forming four sections of small circles to the size of the forging piece. The technology is low in skill requirement of a worker, convenient to operate and high in production efficiency; the loose tooling forging is accurate in shape and high in size accuracy, so that the accessorial blocks of the technology are few and the machining allowance is small; an all fiber forging method is used, so that abundant raw materials are saved and the machinery machiningworking hours are reduced; by means of the complete and streamlined tissue fiber, the mechanical property of the products is greatly improved and the service life is increased.
Description
technical field [0001] The invention relates to a forging process, in particular to a full-fiber forging process of a cross shaft forging. Background technique [0002] The cross shaft is an important part of the cross shaft universal joint shaft. The design requires free forging and is accepted according to the JB / T5000.8-2007 standard. Due to the use of full-fiber forging technology, users have no special performance requirements. In the past, some manufacturers used forging round cakes or square blanks in forging production, and then processed them into the shape of parts with machine tools. This not only wastes a lot of raw materials, but also increases the man-hours of machining. The most important thing is that the forgings proposed in the design should not guarantee the technical requirements of the axial fiber of the cross axis as much as possible. It is greatly reduced and affects the service life. Contents of the invention [0003] In order to solve the techni...
Claims
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Application Information
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