TPT May 2017

T UBE M I L L S & R OL L FORM I NG L I NE S

50 years of roll-forming exper tise

SEN Fung is a supplier of sheet metal roll-forming machinery in Taiwan, and has operated in the roll-forming industry since 1963. Withmore than 50 years of experience, the company offers quality, durable and customer-orientated facilities worldwide. Sen Fung is also able to manufacture high-speed and automated machinery. Numerous inventions are patented in different countries. The company says that its service team is qualified and praised for its accurate and quick after- sale service reputation. Sen Fung offers technical and machine support to meet the needs of its customers. Sen Fung Rollform Machinery Corp – Taiwan

Email: service@senfung.com Website: www.senfung.com

Sen Fung has worked in roll-forming since 1963

Gasparini presents the X-Press SHEET metal is labelled according to its minimum yield strength. A36 steel corresponds to 36,000psi but will include much stronger steels. Rolling, holes and cuts create internal stresses, which means that sheet metal can be unpredictable. This effect is corrected by crowning: the table is raised to keep the die at a constant distance. But how much do we have to raise? Most manufacturers rely upon theoretical plate strength charts. This is often pointless because the material is unpredictable.

and the profile will have a constant angle across its length. ACSG is just one of many accessories that make X-Press one of the most advanced press brakes available. X-Press is a tailor-made machine entirely designed and built by Gasparini, including the frame and the hydraulic circuit. More than 40 years’ experience led the company to develop many exclusive custom solutions.

To solve this issue Gasparini has patented the ACSG active crowning. A sensor in the ram detects bowing. Cylinders in the table raise the die, while another sensor measures the height. When the two values are equal, punch and die are at the same distance

During forming, upper ram bows in the centre. There, the punch will be farther from the die, so the angle will be sharper at the ends and wider in the middle. A difference as small as 0.0019" in depth leads to a 1° difference on a 0.3" V-die.

Gasparini – Italy Website: www.gasparini.it/en

Rafter ships RT-3000 weld box and turkshead for profiles

mills, roll forming machines, cut-off machines and other related tube and pipe mill machinery. Additional services include rebuilding and upgrading mill equipment. Rafter Equipment Corp – USA Fax: +1 440 572 3703 Website: www.rafterequipment.com

HSLA welded seam profiles up to 3" square x 0.16" thick for an automotive application on the customer’s existing RLM Manufacturing roll former. Rafter states that it was chosen for the project because of its reputation for providing the kind of heavy-duty mill equipment necessary for this application. Rafter is a manufacturer of tube mills, pipe

RAFTER Equipment Corporation has delivered welding and straightening equipment to a major North American custom roll form parts producer. The equipment included an RT-3000 high- frequency induction (HFI) five-roll weld squeeze box and an RT-3000 double- sided turkshead straightener. The equip- ment will be used for the production of

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MAY 2017