Machining method of metal curved foot

• Main Author: CHEN JIEBIN
• Format: Patent
• Language: Chinese; English
• Published: 22.04.2022
• Subjects: COMBINED OPERATIONS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; TRANSPORTING; UNIVERSAL MACHINE TOOLS

The invention discloses a machining method of a metal curved foot. The machining method comprises the steps that a metal pipe is selected and cut off; one end of the metal pipe is put into a pipe shrinking machine for secondary pipe shrinking; stamping a transition section between the secondary contracted pipe section and the non-contracted pipe section into a step surface; adding a first core rod into the secondary contracted pipe section in the curved foot, flattening, and carrying out solid solution heat treatment on the curved foot; one end of the curved foot is fixed, the other end of the curved foot is stamped, one end of the curved foot moves downwards, and a middle transition section is stamped into an s-shaped bent pipe through a straight pipe; the thread rolling machine is used for conducting thread machining on the two ends of the curved foot, it is guaranteed that when the curved foot is flattened, the roundness and straightness of the non-flattened section of the secondary shrinkage pipe section