This project presents a pipe shrinking machine designed to reshape metal pipes by reducing their radius and narrowing specific sections. It works with pipes ranging from Ø120 to Ø220 mm, providing precise, controlled deformation for industrial use.
A critical challenge was maintaining pipe stability during the intense forming process. The machine applies force via two rollers on one end to compress and reshape the pipe. Without internal support, the pipe could collapse or deform unevenly, leading to quality issues.
To address this, a stepped mandrel acts as an internal support inserted inside the pipe. It securely holds the pipe from within, preventing collapse and ensuring even load distribution. Combined with the external rollers, this internal support guarantees smooth, accurate reshaping without damage or misalignment.
Through detailed CAD design and testing, both the machine and the stepped mandrel were optimized for durability, adjustability, and ease of use. The mandrel’s stepped geometry allows quick adaptation to different pipe diameters, improving the machine’s efficiency and reliability in production.
