Apparatus and method for forming semi-circular parts
A technology of forming equipment and ring parts, applied in the field of metal stamping, can solve the problems of material utilization rate, large machining allowance, poor overall uniformity, etc.
Active Publication Date: 2021-10-01
SHANGHAI ELECTRIC SHMP CASTING & FORGING CO LTD
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Problems solved by technology
The current manufacturing method adopts the method of split assembly and welding. Due to the differences of each block, the overall uniformity is relatively poor, and the metal fiber streamlines also have differences between each block.
Material utilization rate and machining allowance are relatively large
Method used
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Embodiment Construction
[0029] The forming apparatus of the semi-circular ring of the present invention includes:
[0030] Billet 50: Curved part blank during continuous rolling, due to large diameter differences in the inner and outer side, during the deformation process, the flow rate of outer side blank should be higher than the inner blank flow rate, so it is necessary to design the blank cross section as a trapezoidal cross section. The arc angle of the blank is about 140 °. At the same time, in order to ensure that the blank is always consistent with the direction of operation of the track during operation, the secondary diameter of the blank is the same as the large diameter large and thickness than the half-circular ring.
[0031] Track 60: The angle is about 180 ° after the curved piece is formed, in order to complete the complete delivery and rolling process, the track needs to have sufficient arc long, thus designing the track to avoid the billet to complete the rolling After the rolling rolle...
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The present invention provides a semi-circular piece forming equipment, comprising: a track for placing arc-shaped blanks, the track is circular; a guide rod is arranged on the track and can rotate freely around the center of the track , the guide rod is connected to both ends of the blank, and the guide rod restricts and guides the forming direction of the blank; the rolling roll set is arranged on the track and is used to roll the blank to make the blank plastically deform; the conveying roller The group is arranged on the track and is used to convey the blank and make the blank run along the track; the heating device is arranged on the track and locally heats the blank in real time. The invention adopts a specific method of central line traction, and carries out continuous multi-pass rolling on the billet on a circular track, so that the billet is radially extended and formed along the arc, thereby producing a semicircular ring member with a super large diameter and a large width-thickness ratio.
Description
Technical field [0001] The present invention relates to the field of metal stamping, particularly a forming apparatus and method of a semi-circular ring. Background technique [0002] At present, for large diameter large and wide-thickness than semi-circular ring, it is difficult to complete the imitation fabrication by conventional forging or rolling methods by conventional forging or rolling methods, considering the ultra-large diameter of super large and wide thickness than the extreme size of the semi-circular ring. It is a split manufacturing plan, which is the basic process of its manufacturing: three or more, each block takes forging or rolling molding, splicing each of which is prepared. At present, the manufacturing method is taken by split group welding, and due to differences in each block, the overall uniformity is relatively poor, and the metal fiber flow line also has a difference. Material utilization and mechanical processing margin are also larger. Inventive con...
Claims
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IPC IPC(8): B21H1/06
CPCB21H1/06
Inventor 朱洪洋黄健
Owner SHANGHAI ELECTRIC SHMP CASTING & FORGING CO LTD