TPT July 2015

Straightening

Bendcheck assures straightness ABSOLUTE straightness is one of the concise quality criteria in the production of round bars and pipes. Bendcheck – the precision laser measuring system from Zumbach – monitors bending continuously without missing any sections directly within the production process. This replaces the ODAC ® laser measuring heads used currently to manually spot test with a non-contact online test for bending. Apart from the gain in quality the manufacturer also saves considerable time through the use of the online data check.

Bendcheck can be used for synchronous real time scanning in the production process; quality assurance directly after the straightening process; direct integration in the production process (customer-specific installation); and no time-consuming and laborious checks with manual tools. The system measures the position and diameter of the product at three different locations along its axis. Bendcheck calculates the deviation of the central measuring head in respect of a virtual straight line projected from the

Customer-specific system installation with three ODAC ® 18XY laser measuring heads

generated by an encoder along the cutting edge. The respective data is clearly shown on a display board. Diameter, absolute bend value, bending angle as well as the individual and current measurements of the three measuring heads are clearly shown. Additional statistics complement the informative value of the measurement. Zumbach Electronic AG – Switzerland Website: www.zumbach.com

position of the left head to the position of the right head, from the data. This value is either divided by the distance or by the distance squared. The operator can select the preferred formula for the bend calculation. Thanks to this information, the bend of the product is continuously calculated and graphically displayed. Bendcheck can be operated in a continuous measuring mode without encoder, or in a triggered mode where the measurement pulse is

Square and rectangular sections THE latest generation of linear cage forming technologies has been put into operation in North Europe, at a manufacturer of high quality stainless steel tubes. The mill can produce all square and rectangular tubes within the size range, without change of any rolls in forming, welding, sizing, straightening and clamp jaws in cut off. the utilised data, and it is possible to create particular ‘shapes’ with different angles. From the PC it is possible to see the ’tube flower’ to be produced.

The average time for changing tube set-up dimensions is around ten minutes. All the electrical equipment and motorisation are engineered to save energy, and to recover power and reuse it in the line circuit.

The main advantages of the technology include facility and rapidity in changing the profiles dimensions; simple maintenance; and simplicity in software utilisation. The mill makes it easy to produce both square and rectangular tubes by means of computerised control, where data is stored in order to produce all the tube sizes in the range. The PLC records all

The complete, fully automatic tube mill, including surface finishing, tube end facing, unloading and packaging sections, can produce square tubes from 40 x 40mm to 120 x 120mm, and rectangular tubes from 50 x 40mm to 180 x 60mm, in a thickness range from 2 to 8mm in stainless steel austenitic, ferritic and Duplex grades. The maximum mill speed is 80m/min.

Olimpia 80 Srl – Italy Fax: +39 0523 864584

Email: olimpia@olimpia80.com Website: www.olimpia80.com

Double-sided turkshead straightener RAFTER Equipment Corporation has finished a new RT-2000S raft set and double-sided turkshead straightener for a North American tube producer. The equipment will replace older American Electric Fusion (AEF) tube mill equipment that is worn and has lived its useful life. The company reversed engineered the raft plates and drive shaft connections so that they would work with the existing equipment. The new driven and idle side roll stands will include updated quick-change features and be more robust than the ones they replace. The turkshead will offer the same improvements. Rafter Equipment Corporation manufactures tube mills, pipe mills and roll forming machines. Rafter Equipment Corp – USA Website: www.rafterequipment.com

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J uly 2015