在实践出产过程中，无缝异型钢管的弯曲成形是异型管制作中最首要的一道工序。其加工方法多种多样，如今我们选用较多的有手工压形、模具压形和弯管机弯形等方法：手式压形最常用的设备之一为手动液压机，无缝异型钢管厂家有单柱式和四柱式液压机等。这种加工方法活络，适用范围广，对一些三给或多曲率组合的异型管件比照有用，但功率低，人工工作量大，曲线不光滑。所以我们首要运用手工成形进行修改工序及试制产品的出产；
In the production process, the bending of seamless special-shaped steel tube is the most important process in the production of special-shaped tube. Its processing methods are various. Now we choose many methods such as manual pressing, die pressing and bending of pipe bending machine. One of the most commonly used equipment for manual pressing is manual hydraulic press. Seamless special-shaped steel pipe manufacturers have single-column and four-column hydraulic press. This method is flexible and applicable to a wide range of applications. It is useful for some special-shaped pipe fittings with three or more curvatures, but it has low power, large workload and non-smooth curves. Therefore, we mainly use manual forming to modify the process and trial-produce the product.
模具成形技能是选用四柱式压力机，设备不一样曲率的模具，约束矩形冷弯型异形管成形，首要运用于曲率较小的构件，如侧立柱等。异形管的弯曲力和回弹力由于多种要素的影响，很难作精确的计算。成形模具一般选用阅历公司计算与实测相结合的方法进行计划调整。成形技能的特点是功率高，合适批量出产，缺点是对异型管的原料恳求高，回弹要一起；模具约束不一样批次的材料，回弹不一，难以调整。模具成形技能对于加工曲率半径大的构件比照适合，一些批量较大并且通用性较强的零部件我们可以选用模具或土胎成形；
Die forming skill is to select four-column press, which has different curvature and restricts the forming of rectangular cold-formed special-shaped tubes. It is mainly used for components with smaller curvature, such as side columns. The bending force and springback force of special-shaped tubes are difficult to calculate precisely because of the influence of many factors. Forming dies are usually adjusted by the combination of experience company calculation and actual measurement. The forming skills are characterized by high power and suitable mass production, but the shortcomings are high appeal for the raw materials of special-shaped tubes, and the springback needs to be together; the materials with different batches of die constraints have different springback, which is difficult to adjust. Die forming skills are suitable for processing components with large radius of curvature. Some parts with large batches and strong versatility can be formed by dies or earthen tyres.
对于小曲率半径的异型管件，选用手工成形或模具成形都难以习气大批量出产，我们运用的数控弯管机就能满足这种异型管的恳求。数控弯管机的自动化程度高、功率高，能习气各种不一样的曲率的异型管出产。一般不需要投入许多的模具，运用方便。弯出的异型管与样板的贴合度一般不大于2mm。为了保证异型管的制作精度，一般都添加一道人工整形工序。选用专用的整形台面等，经整形后，异型管件与样板不贴合度应在1mm以内。
For the special-shaped pipe parts with small radius of curvature, it is difficult to produce in large quantities by hand or by die forming. The NC pipe bender we use can satisfy the request of the special-shaped pipe. CNC pipe bender has high automation and power, and can be used to produce special-shaped pipes with different curvatures. Generally, it does not need to invest a lot of moulds, so it is convenient to use. The fitting degree between the bended special-shaped tube and the sample is generally not more than 2 mm. In order to ensure the manufacturing accuracy of special-shaped pipes, an artificial shaping process is usually added. Select special shaping table and so on. After shaping, the non-conformity between the special-shaped pipe fittings and the sample should be within 1 mm.
