What are the basic requirements for forming pipe fittings in a pipe bending machine?
What are the basic conditions for discussing the forming requirements of pipe bending machine fittings? We are a professional manufacturer of full pipe bending machines with years of rich experience. To ensure the quality of pipe forming, it is necessary to control the degree of deformation within the allowable range. The limit of pipe bending forming not only depends on the mechanical properties and bending methods of the data, but also considers the requirements for the use of the pipe fittings. Summarize that the degree of deformation of the pipe during the use of the pipe bending machine depends on the relative curvature radius R/D and the relative thickness t/D values. The smaller the R/D and t/D values, the greater the degree of deformation.
The forming limit of pipe fittings for pipe bending machines should include the following contents:
1、 If there is a requirement for ellipticity in the pipe fittings, manipulate their cross-section to cause distortion;
2、 Within the compression deformation zone on the inner side of the neutral layer, the thin-walled structure affected by tangential compressive stress will not exceed instability and wrinkle.
3、 If the pipe fittings have a strength requirement to accept internal pressure, control the forming limit of its wall thickness reduction.
4、 The maximum elongation deformation within the tensile deformation zone on the outer side of the neutral layer does not exceed the plastic allowable value in the data and causes cracking;
