驾驶室用异型型材冷弯成型设计

发布时间：2018-06-03 17:57

本文选题：冷弯型钢 + 冷弯成型　；参考：《山东大学》2016年硕士论文

【摘要】：冷弯型钢作为一种截面合理、力学性能良好、钢材利用率高的环保型材料在汽车工业中具有广泛的应用前景。但是,受技术、工艺、设备等方面的制约,相关企业在复杂断面的冷弯型钢产品研发过程中,存在开发周期长,投入高,而且试错风险大等困难。本文针对工程车驾驶室用冷弯材料的设计、开发、生产过程进行研究,以冷弯成型原理为基础,参照相关行业经验,利用ABAQUS有限元软件对成型角度进行了优化设计,最终设计并实际验证了孔型、轧辊系统,确保了产品质量,对汽车行业异型材的开发生产具有重要意义。系统地剖析了冷弯型钢成型原理,确定了成型时平缓过渡区长度、最小弯曲半径的计算方法,分析了冷弯成型过程中板带的成型规律与变形性能,以减少工艺和孔型设计的盲目性。研究了冷弯成型工艺,对变形区长度、机架间距和数量、成型辊轴径和底径、成型底线、成型速度等工艺要素做了定量分析；并且提出了孔型设计基础、步骤,成型方法及原则。针对工程车辆驾驶室用异型材,利用冷弯成型工艺,结合公司现有设备情况,利用ABAQUS软件完成了成型角度优化设计,完成了产品辊花图,并按照架次进行了展开。最终完成了工程车辆驾驶室用异型材的轧辊孔型及轧辊设计,进行了产品试制,得到了合格产品。结果表明此次开发的工艺及轧辊系统,完全满足了驾驶室冷弯型钢的生产需要。
[Abstract]:As a kind of environmental protection material with reasonable section, good mechanical properties and high steel utilization ratio, cold-formed steel has a wide application prospect in automobile industry. However, due to the constraints of technology, equipment and so on, there are some difficulties in the research and development of cold-formed steel products with complex section, such as long development cycle, high investment, and high risk of trial and error. In this paper, the design, development and production process of the cold-formed material used in the cab of engineering vehicle are studied. Based on the principle of cold-formed forming and referring to the relevant industry experience, the forming angle is optimized by using ABAQUS finite element software. Finally, the pass and roll system is designed and verified, which ensures the quality of the product and is of great significance to the development and production of profiled materials in automobile industry. The forming principle of cold-formed steel is analyzed systematically, and the calculation method of the length of flat transition zone and the minimum bending radius during forming is determined, and the forming law and deformation performance of strip in cold forming process are analyzed. To reduce the blindness of process and pass design. In this paper, the forming process of cold forming is studied. The process factors, such as the length of deformation zone, the distance and quantity of stand, the diameter and bottom diameter of forming roller, the bottom line of forming, the forming speed and so on, are quantitatively analyzed, and the foundation and step of pass design are put forward. Molding methods and principles. According to the profile of the cab of the construction vehicle, by using the cold forming technology and the existing equipment of the company, the optimum design of the forming angle was completed by using ABAQUS software, the product roll pattern was completed, and the roll pattern was carried out according to the number of sorties. Finally, the roll pass and roll design of the profile material used in the cab of the construction vehicle are finished, and the product trial production is carried out, and the qualified product is obtained. The results show that the developed technology and roll system fully meet the needs of the cab cold bending steel production.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U463.81

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