Stent bending manufacturers share common problems in aluminum profile bending

The basic principle of aluminum stretch bending forming is that the stretch die and the table top are fixed and fixed, and the support arm stretch steel rotates around the stretch bending die, so that the steel base material is plastically deformed under the action of tensile force and bending moment, so that it can cooperate with the die to obtain parts of the required shape. The following stretch bending manufacturers share common problems in the process of aluminum profile stretch bending forming.

Bending parts are characterized by large radius of curvature, large springback, and deformation of the curvature extension shaft. Aluminum stretch is widely used in aerospace, aerospace, automotive, construction and high-speed train industries. It is used for fuselage, wing reinforcement and skeleton, curved house skeleton, curved door frame, window frame, train front, roof contour The forming of curved parts such as supports and window frames and curved door frame frames.

Aluminum bending steel parts play an important role in China's machinery production and modern construction. With the wide application of aluminum bending steel, the problems exposed in production are gradually increasing. In order to ensure the qualified rate of parts and the stability of production, the common problems and related treatment methods in the process of aluminum stretch molding are mainly studied.

There are many problems in the bending process of aluminum steel, which seriously affect the qualified rate and production efficiency of products. The bending manufacturers believe that the production cost will have a significant impact on the normal operation and production of the enterprise.

Considering the necessity of aluminum steel bending forming industrialization, combined with the current situation of aluminum steel bending forming, the common problems of aluminum steel bending forming are effectively analyzed, and some relevant improvement measures are put forward, in order to provide effective reference for aluminum steel bending forming.

Pull bending manufacturers talk about the problems of pull bending:

1. Profile deflection

The contour drawing refers to the degree to which the profile shape of the profile bending and change is consistent with the shape template or inspection die. The main factors of the deviation from the outline drawing are as follows. The curvature springback of the bending die changes; the material of each batch of metallurgical extrusion steel is unstable, and the hardness of the local area of each material is uneven. Bending radius of curvature changes too much. The cross-sectional area of the profile blank is uneven.

2. Surface defects

Surface defects include cracks after bending of steel, shrinkage wrinkling, bending surface depression and side vertical marks.

3. Twist three bends

The reason for the torsion after tensile bending is that the section area of the profile is asymmetric, and the end face sealing and edge stress are unbalanced.

4. Perpendicularity distribution

The perpendicularity is the vertical reference of the section of the profile after bending (perpendicular to each radius of curvature of the mold) and the angle deviation of the inspection platform.

5. Section steel process length

The profile bending process length is the length of the process material required to pull the mold, fixture and equipment through the actual length of the part.

6. Safe production

Safety is an important issue in the process of industrial production. The manufacturer believes that when the steel is bent, due to accidental factors, it will suddenly break and protrude outward, causing equipment damage and casualties, which will seriously affect the development of the enterprise.