Development of Technological Processes of Cold Bending with Pipe Rolling from Corrosion-resistant Steels

摘要

The article discusses the technological recommendations for choosing the necessary modes of bending pipes made of corrosion-resistant steels. The article discusses in detail the engineering methodology for the construction of technological processes, a technique that includes the following steps: preparation of initial data for design; definition of the sizes of preparations and the scheme are flexible; selection of machine model; definition of bending modes; evaluation of wall thinning; adjustment of the pipe bender; bending products; control of product parameters; adjustment of the modes are flexible and sub adjustment of the machine. General conclusions were made on the work done. A feature of this technique is to determine the amount of tension, depending on the bend radius and thinning of the outer walls of the pipe and the magnitude of the pipe ovality in cross section. An important step is to control the parameters of the bending and re-adjustment of the machine in the presence of such defects as corrugation and flattening of the cross-section of the pipe.