Posts Tagged ‘flat tensile bars’

CNC Tensilkut III For Multiple Samples

October 3, 2017

Often, our customers are interested in the CNC Tensilkut III to gain the ability to clamp multiple blanks into the machine, start it and have the freedom to do other things while the machine cuts specimens unattended.  To that end, we typically set up the CNC Tensilkut III with multiple work stations, so several specimens (typically between 4 and 6, depending upon the size) can be cut at once.  This is a typical table, configured to clamp 6 strips for the preparation of ASTM E8 samples.

The table for the CNC Tensilkut III, configured for multiple tensile specimens

The table for the CNC Tensilkut III, configured for multiple tensile specimens

Once the strips are clamped to the table, the specimens are chosen on the included computer, using our Windows-based point and click system; the machine then runs through its cycle without any operator interaction.  When it’s finished, the CNC Tensilkut III shuts down, indicating that it’s safe to open the front door and remove the specimens, at which point it can be reloaded for another set of specimens. When located in the testing lab, a Tensilkut machine lets you cut your tensile bars as you need them, on your schedule.

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Tensilkut: Tensile Sample Preparation Gold Standard

September 5, 2017

Tensilkut has the capacity to accurately machine tensile specimens from ferrous and non-ferrous metals and non-metallics from .002″ thickness up to .250″ or more, depending upon the model of the machine and the hardness of the material.  The Tensilkut series is fast; test specimen preparation can be completed in as little as 3 minutes, depending upon the material and its thickness.  The machined edges are so finely finished that no hand finishing is required.  The capacity to satisfactorily machine such light gauges as .002″ thick allows testing of many materials for which specimen preparation would otherwise be significantly more difficult.

Tensilkut test bars

Some of the bars cut on Tensilkut machines include ASTM D638 Type I tensile bars, ASTM D412 Die C tensile bars, ASTM D1855 Type L Tensile-Impact specimens, ASTM D256 Impact specimens, and ASTM D5379 Shear Test Specimens.

pipe wall tensile sample

sample cut from large diameter pipe wall

Visit our website for more information on Tensilkut equipment to solve your flat sample preparation needs.

 

ASTM D638 Type IV Test Specimens

August 31, 2017

ASTM D638 Type IV is a small tensile specimen used in testing plastics.  It’s a difficult sample to cut, because it has both an inside and outside radius.

ASTM D638 Type IV tensile bars

Tensilkut Engineering makes Master Templates which will work with any Tensilkut I or Tensilkut II to prepare samples in accordance with ASTM D638 Type IV. Each template is sized with a top bar which matches the height of the control head for the Tensilkut machine with which it will be used.

Tensilkut Master Templates 50-92, 50-93 and 50-94 for preparing rubber test specimens in accordance with ASTM D412 Die C: Available for use on Tensilkut I and Tensilkut II models.

Tensilkut Master Templates 50-92, 50-93 and 50-94 for preparing rubber test specimens in accordance with ASTM D412 Die C: Available for use on Tensilkut I and Tensilkut II models.

50-94 Tensilkut Template for ASTM D412 Die C

50-94 Tensilkut Template for ASTM D412 Die C

For more information on the ASTM D638 Type IV and other Tensilkut Master Templates, visit our website.

More Ways to Follow Us

August 30, 2017

Tensilkut is now on Twitter @TheTensilkut and Google+.  Follow us in order to receive notification of new blog posts.

Tensilkut test bars

Some of the bars cut on Tensilkut machines include ASTM D638 Type I tensile bars, ASTM D412 Die C tensile bars, ASTM D1855 Type L Tensile-Impact specimens, ASTM D256 Impact specimens, and ASTM D5379 Shear Test Specimens.

The Original Tensile Sample Preparation Solution

August 29, 2017

The Tensilkut I is the original machine designed to prepare tensile and other test specimens from a wide variety of materials.  This precision machine is based on the unique concept of utilizing super high cutter rotation speeds to achieve dramatic reductions in chip load and cutting pressures; the Tensi8lbit produces 1000 cuts per second with the individual chips becoming fine shavings.  This high speed shearing action eliminates cold working or heat induced distortion to the sample edges.  Precise test specimens can be Tensilkut milled form aluminum, steel, stainless, titanium, pliable plastics, glass filled laminates, and a wide variety of other materials.  The configuration of the specimens is traced from a precision master template to achieve contoru duplication to with plus or minus .001″ (.025mm).

Dogbone sample cutter Tensilkut

10-68 Tensilkut I for preparation of flat tensile specimens

Contact us or visit our website for more information.

Tensilkut Catalog, Circa 1955

August 9, 2017

In this day of instant electronic communication, it’s hard to believe that 60+ years ago, not only was everything mailed, but Tensilkut’s catalog, when it arrived in the mailbox, contained a tensile test bar which had been cut on the Tensilkut.

Tensilkut catalog with aluminum tensile sample

The 1955 Tensilkut catalog included a drawing of the only tensile bar we made at the time, along with an actual specimen!

I don’t imagine the founder of Tensilkut ever imagined a time when we could not only send information to customers nearly instantly, but also a time when we’d be able to make videos available for people to see whenever they wished.  Despite sea changes in communication, the need for his original machine remains very real – and at least one of the machines made in his first couple of years remains in service today.

A Blast From The Past

August 7, 2017

Recently, while browsing the Tensilkut Ancient History file, our catalog from October 1, 1956 appeared.  It was a simple affair, with a heavy sheet as front and back cover, and a single sheet describing the entire Tensilkut line, consisting of the Tensilkut (one model only) and its template.  The cover was adorned with a four-color photograph, glossy, of course (at a time when color photography was less common and rather expensive).

Tensilkut I

The cover of the original Tensilkut catalog, from October 1, 1956!

How far we have progressed today, to our line containing numerous models of the Tensilkut I, Tensilkut II and CNC Tensilkut III for preparing flat tensile specimens, along with the Tensilgrind for high hardness flat samples, and machines for round and notched test specimen preparation!

Visit our website at www.tensilkut.com to see how greatly our line of equipment has expanded, and how we can assist you with your test specimen preparation needs.

Composite Tensile Test Sample Preparation

August 2, 2017

Recently, a customer sent us some composite strips to be cut into ASTM D638 Type I tensile samples.  We used the Tensilkut II, and the process was very fast and easy.

Tensilkut machines are sized for location in your testing laboratory, to be used by technicians without machining experience.  The Tensilkut II is a floor model, manually operated machine; table model Tensilkut I machines are also available for labs with less space available.  Visit our website at www.tensilkut.com or fill out the contact form below for more information on how Tensilkut can make your tensile specimen preparation easier!

Tensilsaw for Fiber Reinforced Plastic Strips

July 17, 2017

New on YouTube: the video demonstration of the Tensilsaw being used to prepare strips of fiber reinforced plastic from 12″ square plaques.  The material saws quickly and easily, with minimal operator training.

After t

he strips have been prepared, they can be used for flexural testing, or any test requiring a straight strip.  Alternatively, and frequently, the Tensilsaw is used to cut blanks for insertion into the template, to be cut using the Tensilkut II or Tensilkut I into tensile bars.  A common specimen to be prepared in this manner is ASTM D638, or ASTM D695 tensile bars.  Another use for such strips would be for insertion into the V-Mill template, to be notched for Iosipescu shear testing in accordance with ASTM D7078 or ASTM D5379.

Demonstration of the Tensilkut II

June 23, 2015

The Tensilkut II is used to easily prepare flat tensile, compression, flexural and other specimens from metals and non-metallics.  This machine is designed for operation in the testing lab by technicians without previous machining experience.

The starting blank is inserted into the Tensilkut Master Template, and the clamping screws are tightened as shown in this video.  The micrometer dial on the Tensilkut control head is set to its starting position, and a series of light passes are taken to cut the material from each side of the specimen.  When the correct tensile specimen dimensions are achieved, the micrometer dial will stop turning, thus preventing cutting an undersized test specimen.  After removing the completed ASTM E8 or other specimen from the master template, the tensile bar is ready for immediate testing.