Name: Liaoning Super Group Construction Group Co., Ltd.
Super group hardware accessories store：
Doors and windows, stretch bending and pressboard workshop：
Address: middle section of South outer ring of Dashiqiao
Key technical problems in stretch bending of Super Section titanium Jinmen window
1. reasonably determine the technological parameters in the process of stretch bending.
2. accurately predict the springback of stretch bending parts.
In the actual production, the correct amount of the drawing and bending die and the determination of technological parameters are mainly solved by practical experience or trial and error method, that is, the repair modulus is adjusted repeatedly according to experience, and the technological parameters such as the main pulling force and the supplementary pulling force are changed. Sometimes, several times of pre stretching bending and heat treatment are needed. This method has high cost and long time, and the shape accuracy is difficult to guarantee. With the increasing requirement of product processing precision, the requirement of near-net forming increases gradually. Digital design and manufacture also put forward new requirements for stretch-bending forming technology. Traditional stretch-bending forming technology can not meet the needs of modern production. With the progress of science and technology, the continuous innovation of technology, especially the continuous development of CAD / CAE technology, large-scale CAD general software for the design of stretch bending die provides a strong technical support. Under the CAD software environment, some effective geometric information of parts can be obtained, for example, the curvature distribution and its size of the whole curve can be obtained by geometric analysis function, and the quality of the surface can be checked. At the same time, its two development tools provide technical support for users to develop their own dedicated CAD system. The application of CAE in stretch-bending process of profiles makes it possible for technicians to observe the dynamic forming process of profiles and the distribution of stress, strain and displacement of each instantaneous material more intuitively. Through these basic data, the formability of profiles can be obtained, and the parameters and products of dies can be adjusted according to their force and energy parameters. Shape process, modify mold surface and adjust springback.
CAE technology has become a very important tool in stretch bending of profiles, but its application in practice is limited by many factors. In order to accurately simulate the tension-bending process, it is necessary to accurately describe the mechanical properties of workpiece materials, reasonably determine the boundary conditions, and accurately deal with various non-linear problems in tension-bending. In addition, users are required to have a certain theoretical basis, master the relevant software knowledge and have a reasonable production process. Understanding. Any failure in any part will lead to the deviation between the analysis result and the actual situation. Therefore, it is necessary to study the stretch-bending mechanism deeply and determine the influence of stretch-bending process parameters on the forming quality of the workpiece by combining with CAE technology, so that the formed parts have reasonable alignment margin, so as to improve the quality of automobile and aircraft stretch-bending parts and accelerate the process of localization of automobile and aircraft stretch-bending parts. Important significance.