The 3Z-4.2 rotary mower produced by our factory has a splint ring part (Fig. 1), which is made of Q235A flat steel 3mm×25mm. The traditional process is to fix the forming mold on the coiling machine and use the mold to round the blank. At the welding interface, the plywood ring is removed from the reel trigger, and finally it is leveled and rounded to become a good product. This not only makes production inefficient, but also the dimensional tolerances and geometrical tolerances of the parts are difficult to guarantee.
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Jiangsu Zhongyi Work Rigging Co., Ltd. , https://www.zy-rigging.com