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Below are videos comparing the results of the two simulations. Both simulations are testing the same forming progression through the breakdown and fin passes of a high-strength material tube with a high thickness to diameter ratio, but utilizing two different mill configurations.
Mill #1 is a smaller mill and consists of smaller horizontal distances between the stands, and the rolls are smaller in diameter. Mill #2 is the larger of the two mills, has larger horizontal distances between the stands, and larger diameter rolls.
High-Strength Tube – Light Wall – Mill 1 – Center Portion
High-Strength Tube – Light Wall – Mill 2 – Center Portion
High-Strength Tube – Light Wall – Mill 1 – Full Length
High-Strength Tube – Light Wall – Mill 2 – Full Length
The results show the larger diameter rolls weren’t able to overcome the effect of the larger horizontal distances between the stands. These larger horizontal distances allow for more springback between stations, resulting in increased longitudinal strain along the strip edge, which leads to a greater tendency for buckling along the strip edge.
First Time Performance
Roll form tooling tested at our facility or yours
Detailed setup package & technician's testing remarks
Tooling drawing fully detailed
Technicians available to troubleshoot at your facility
Tooling shipped in foam-filled wooden crates
Minteq International, Inc.
Welded Tubes, Inc.
Roll-Kraft’s latest tube and pipe mill training seminar was held on October 24, 2023 at the Waverly, Nebraska Venue location.
Mill operators, maintenance supervisors, engineers, tool room personnel and management will all benefit from the program by learning new skills & produce a better quality product in less time.
Robert's extensive expertise in the tubing industry spans over five decades, including 33 years of service at Roll-Kraft.