LIU Huijuan, LI Zenglou, MA Hui, et al.Manufacturing Technology and Quality Control of Pillow Beam for Fast City EMU[J].Electric Welding Machine, 2022, 52(7): 110-115. DOI： 10.7512/j.issn.1001-2303.2022.07.16.
Manufacturing Technology and Quality Control of Pillow Beam for Fast City EMU
As the key part of rail transit train, pillow beam is the platform connecting the train body and bogie. It should not only bear the weight of the vehicle, but also bear and transfer the vertical force, longitudinal force and transverse force between the bogie and the car body. At the same time, the pillow beam is also the additional air chamber of the air spring. Its manufacturing process, process methods and the precision of the key parts of the size control directly affect the manufacturing quality of the vehicle. This paper briefly summarizes the corbel manufacturing process, and connecting with the actual production experience, has carried on the induction summary to related issues discussed quickly reach the EMU corbel manufacturing process and matters needing attention, and the common problems in the corresponding solution measures are put forward, so as to achieve the purpose of controlling the overall size and quality of the pillow beam after welding. It provides useful reference for the production and manufacture of pillow beam in the following market.
pillow Beamwelding deformationquality controlcompand process