The invention relates to a method for deforming tubes (1), in particular for bending tubes with a bending radius that corresponds up to a maximum of double the outer diameter of the tube. Said method is characterised by the following steps: the tube (1) is heated in the area that is to be bent; it is then bent about the convex part of a bending die section (31); the bending die (3) is closed by a bending die section (32) that has a concave counter contour; excess pressure is applied in the tube lumen; the bent tube (1) is cooled, then the bending die (3) is opened and the bent tube (1) is removed.
申请公布号
WO2009053033(A2)
申请公布日期
2009.04.30
申请号
WO2008EP08909
申请日期
2008.10.22
申请人
REHAU AG + CO;LIEBEL, VOLKER;HEINLOTH, LUDWIG;PROBST, EGON