Testing Machines and Systems for Metals - Zwick - #19

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19 Shear Test The weld points of reinforcing mats and lattices are tested for shearing. This involves removing specimens from welded mats and lattices and placing them in special close-fitting specimen grips. Specimen grips used for this type of test must be accurately matched to the diameter and position of the ribbed wires in order not to influence the shearing loads. Zwick has many decades of experience in this area and has developed a comprehensive range of accessories. Automation of Reinforcement Steel Testing Reinforcing steel is produced in large amounts and must be continually tested for production control. Zwick has developed automated systems in which specimens, cut to length from rod material or separated from mats and lattices, are loaded manually into magazines, after which they are tested completely automatically. Artificial ageing at 100 °C can also be integrated into this type of testing system. Cross-sections are measured in accordance with Fig. 1: Welded seam test T-joint Fig. 2: Shear test on lattice rod Fig. 3: Detail of testing device Fig. 4: Robotic testing system for testing reinforcing steel Fig. 5: Automatic length measurement Fig. 6: Automatic rib measurement standards and with high accuracy and specimens can be optionally sorted according to test result for later visual inspection. • Customized total solutions • Integration of all relevant tests • High availability • Useful options for forwarding fault reports