Spin forming process and apparatus for making articles by spin forming

摘要

A process of spin-forming for manufacturing an article (33) of a required shape from a workpiece (30), the workpiece, with reference to the required shape of the article (33), an outer surface ( 40) and an inner surface (42), where rotating the workpiece about an axis of rotation (a) of the workpiece with respect to a forming tool (36) apoca against one surface external and internal of the workpiece to deform the workpiece into the required shape and a first support (44) bears against the opposite surface of the workpiece relative to the forming tool (36), wherein the workpiece work (30) is mounted in a mounting region being defined during the spin forming a proximal end of the workpiece and distal end of the workpiece, the proximal end of the workpiece being closer to the ex distal tremo of the workpiece to the mounting region of the workpiece, there being a proximaldistal direction parallel to the rotation axis of the workpiece, a radial direction perpendicular to the axis of rotation of the workpiece and a lateral direction perpendicular to the radial direction, wherein there is provided a second support (46), which bears against the opposite surface of the workpiece relative to the forming tool (36), rotating the workpiece with respect to the supports, characterized in that: the first support (44) is disposed proximal to the second support (46) form, the forming tool (36) is disposed distal to the second support (46) form, and the first (44) and second ( 46) supports can be independently controlled positioning machine in the proximal-distal direction and / or in the lateral direction with respect to the spinning workpiece.