Spinning flange ring and forming technology thereof
A forming process and flange ring technology, applied in the direction of building components, mechanical equipment, engine components, etc., can solve problems such as welding defects, limited use range, low production efficiency, etc., to achieve improved mechanical properties, meet appearance requirements, and surface good quality effect
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Embodiment 1
[0075] Such as Figure 8 As shown, the steps are the same as above, the difference is that the relationship between the angular velocity of the rotation of the first-stage semi-finished product and the speed of the preforming-rotor process is:
[0076] , 350rpm≥ w ≥250rpm, the unit of v is mm / s;
[0077] The research shows that when the stainless steel blank rotates, the quality of its spinning is related to the cooperation between the rotational angular speed and the mold process speed. When the rotation speed is low, such as 250rpm, the mold process speed should not be too high, because the process speed is too high , the rotation speed is too low, and it is easy to cause excessive pulling force in the radial direction of the blank during spinning, resulting in slight pulling wrinkles on the clamping part and the film-feeding part of the blank. Usually, such wrinkles should not be detected by the naked eye. It was found that, when in use, the wrinkled parts were lower th...
Embodiment 2
[0079] Such as Figure 9 As shown, the described steps are the same as in Example 1, the difference is that the relationship between the angular velocity of the first spinning blank rotation and the speed of the preforming two rotary wheel process is:
[0080] , 350rpm≥ w ≥270rpm, the unit of v is mm / s;
[0081] The principle is similar to that of Example 1, the difference is that after the first spinning process, the edge of the workpiece is trimmed into a hemispherical ring. Since the workpiece does not directly bear the hard force, the force bearing capacity of the blank for the first spinning To be obviously stronger than the first-class semi-finished products, the rotational speed of the blank can be significantly increased. When the rotational speed is the same, the quality of the module is the best when the rotational speed is 300rpm.
Embodiment 3
[0083] Such as Figure 10 Shown, described step is identical with embodiment 3, and its difference is,
[0084] The relationship between the angular velocity of the rotation of the second spinning blank and the speed of the forming wheel process is:
[0085] ,350rpm≥ w ≥300rpm, the unit of v is mm / s;
[0086] With the final forming of the blank, its stress capacity reaches the highest value, that is, the rotational speed and the mold process speed can point to the maximum value during the final forming. When the rotational speed reaches 350rpm, the spinning semi-finished product with the best quality of the present invention can be made. The part has the highest surface smoothness, the strongest force bearing capacity and the best plasticity.
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