What are the basic conditions for forming the pipe fittings of the pipe bending machine?

Discuss what are the basic conditions for the forming requirements of the pipe bending machine? We are a professional manufacturer of full pipe bending machines with many years of experience. In order to ensure the forming quality of pipe fittings, it is necessary to control the degree of deformation within the allowable range, and the bending forming limit of the pipe depends not only on the mechanical properties and bending method of the material, but also Also consider the requirements for the use of pipe fittings. It is concluded that the deformation degree of the pipe during the use of the pipe bender depends on the relative bending radius R/D and the relative thickness t/D. The smaller the R/D and t/D values, the greater the degree of deformation.

The forming limit of the pipe fittings of the pipe bending machine should include the following contents:

1. If the pipe fitting has ellipticity requirements, the section of the pipe will be distorted;

2. In the compression deformation zone inside the neutral layer, the part of the thin-walled structure affected by the tangential compressive stress will not exceed the instability and wrinkle.

3. If the pipe fitting has the strength requirement to accept the internal pressure, control the forming limit of its wall thickness reduction.

4. The maximum elongation deformation in the outer tensile deformation zone of the neutral layer does not exceed the allowable value of plasticity of the material and breaks;