The invention relates to the field of wheel manufacturing, and in particular relates to a wheel rim and a machining process thereof. The rim of the wheel rim is of a C-shaped structure, the radial rigidity and the axial strength of the rim of the wheel are greatly enhanced, the wheel is more resistant to impact, tire disengaging can be effectively prevented, and the risk that a tire is cut by the rim in the tire installing process of the wheel is eradicated. The wheel rim is prepared through the following steps that S1 a blanked blank is subjected to butt welding after being rolled and flattened; S2 a welding seam is treated, and a cylindrical workpiece is obtained; S3 the cylindrical workpiece is subjected to flaring treatment, and a flaring workpiece is obtained; S4 the flaring workpiece is subjected to expansion finishing after rolling forming; S5 extrusion forming is conducted on the outer side portion of the outer edge of the working procedure piece subjected to expansion finishing; and S6 air tightness detection and air valve hole punching extrusion are carried out. The manufacturing process is simple, the prepared product is stable in quality, equipment investment and kinetic energy consumption can be reduced, and the problem that the outer side of the rim cannot be formed through rolling can be solved.
本发明涉及车轮制造领域,具体涉及一种车轮轮辋及其加工工艺。该车轮轮辋的轮缘为C型结构,将车轮轮缘设置为C型结构,不仅大幅增强了车轮轮缘径向刚度和轴向强度,使车轮更耐冲击,还能够有效防止脱胎,并且杜绝了车轮装胎过程中轮缘割胎的风险。该车轮轮辋通过以下步骤制备得到:S1,对下料毛坯卷圆压平后对焊焊接;S2,对焊缝进行处理得到筒形工件;S3,对筒形工件进行扩口处理得到扩口工件;S4,对扩口工件滚压成型后进行扩张精整;S5,将扩张精整后的工序件外缘外侧部位挤压成型;S6,气密性检测和冲挤气门孔。该制造工艺简单、制备得到的产品质量稳定,能够减少设备投入、动能消耗且能够解决轮缘外侧部位无法通过滚压成型的问题。
Wheel rim and machining process thereof
一种车轮轮辋及其加工工艺
2021-11-19
Patent
Elektronische Ressource
Chinesisch
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