Posts Tagged ‘notching’

V-Mill Demonstration

August 28, 2017

For the testing of composites, few samples are harder to make than the shear test specimen, whether for the ASTM D5379 V-Notched Beam Method sample, or the ASTM D7078 V-Notched Rail Method sample.  In response to demand for an easier way to notch these blanks, Tensilkut Engineering developed the V-Mill I, which employs a custom diamond coated wheel to accurately complete the notch without tool marks or deformation, while maintaining the tight tolerances, including depths and angles, required for a successful test.

This is a video demonstration, which first explains the principles behind the machine, followed by the actual notching of a carbon fiber specimen.

The specimen finished during this demonstration, along with two others made from different materials, are shown here.

ASTM D5379 Iosipescu Shear Test specimens prepared on the V-Mill

ASTM D5379 Iosipescu Shear Test specimens prepared on the V-Mill

Please visit our website for more information on the V-mill, or fill out the form below for answers to your specific needs (sorry, but we had to remove the form due to a spammer in Slovakia filling it out 20 times per day).

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Impactmill: Redesigned

October 4, 2013

The Impactmill has long been a workhorse for notching prepared .500″ wide blanks in accordance with ASTM D265 for Charpy and Izod tests.  We have recently redesigned this machine to include an easier method of loading the specimen blanks, more convenient notch depth control, and easier feeding of the specimen through the cutter.  Additional venting for the heavy duty motor which powers the notching cutter  has also been added.

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Contact us for more information on the updated Impactmill, including pricing.