Manufacturing method of low-pressure inner cylinder special-shaped component

The invention provides a manufacturing method for a low-pressure inner cylinder special-shaped component, and belongs to the field of manufacturing and welding. By means of the method and the tool, the assembly size of the special-shaped component is guaranteed, the problem of unfolding and lofting of the complex special-shaped component is solved, welding deformation is controlled, and the special-shaped component is installed and welded to the inner cylinder to meet the drawing requirement. 本发明提供了一种低压内缸异形构件制作方法，属于制造焊接领域。通过此方法及工装保证了异形构件的装配尺寸，解决了复杂异形构件展开放样的难题，控制了焊接变形，异形构件组焊到内缸上符合图纸要求。