engleski

Analysis of incremental hot tube bending

Hot tube bending is used when bending of large diameters, range 150 to 400 mm and wall thickness in range 15 to 25 mm is needed. Processing of prescribed dimensional characteristics requires two possible bending types which are flat hot tube bending and incremental hot bending. The best process characteristics are obtained with incremental hot bending. This process is still very new and needs further improvement. The article gives detailed description of two types of incremental hot bending. Also, graphic presentation of stresses and strains in a tube wall is given too. This graphical data are reached by numerical simulation using MSC Marc Mentat program package.

flat hot tube bending; incremental hot bending; large diameters and wall thickness.

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