Archive for the ‘CNC Tensilkut III’ Category

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.

CNC Tensilkut III for Hardened Steel

September 26, 2017

This is a video demonstration of the CNC Tensilkut III cutting out the gauge section for one specimen of 1.4mm thick hardened steel. The starting size was 3/4″; the finished specimen is in accordance with ASTM E8, with the .500″ x 2″ gauge section, and the included .003″ taper.

This demonstration is 8 minutes long, and shows the entire cutting process.  Please contact us for more information or a quotation.

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.


Cutting Specimens from Plaques

March 31, 2015

Some customers wish to cut specimens from plaques, using the CNC Tensilkut III, without first cutting the pieces into strips. This unit can be designed to do just that.

The machine is programmed to cut the specimens you need in the layout you desire. All clamps are custom made, and, as shown in this photograph, this plaque will be cut into ASTM D638 Type I specimens, cutting the entire length of each bar.

Plaque to be cut with CNC Tensilkut III

Plaque to be cut with CNC Tensilkut III

Often, a plaque which is to be cut into all tensile bars is sawn into strips using the Tensilsaw before the pieces are clamped into the machine. More commonly, when a customer wishes to cut specimens from a plaque, he wants several types of specimens, including tensile, flexural and impact blanks.

Although this can be done for thin plaques of metal, it is not recommended, as the cutting time is significantly longer, and the cutter wear will be much greater. Using the Tensilshear to cut metal strips to be clamped in the CNC Tensilkut III is much more efficient.

Cutting Samples From Pipe Wall

September 16, 2010

Will the Tensilkut machine cut tensile bars from pipe wall without flattening the pipe?

In a word, Yes.

pipe wall tensile sample

sample cut from large diameter pipe wall

A section must be cut from the pipe wall which is the proper width to fit inside the Master Template, and then it is cut in the same manner as cutting a perfectly flat specimen.  The resulting tensile bar will retain the original curvature of the pipe, while having the correct dimensions, including  taper through the gauge section, and be ready for immediate insertion into your testing machine.

CNC Tensilkut III Video

September 1, 2010

Because the recent video of the CNC Tensilkut III showed very little of the motion, here is a video in which the cutting head is moving along its X axis.  Note that no cutting is occurring in this clip.  This is a Quicktime video; please download Quicktime if you can’t view it.

Operation of the CNC Tensilkut III

August 25, 2010

While there are plenty of photos of the CNC Tensilkut III, this is the first time we’ve posted video of the operation of the machine. You will have to look closely, because these samples are lined up front to back on the table, so the cutting head is moving only a minor amount on a left/right or up/down basis, and the table is moving forward and backward for cutting the length of the specimen. When the camera pans to the view of the computer screen, the red shapes indicate the uncut specimens, while the blue lines display the sample which has already been prepared.

Because the door cannot be opened while the cutting operation is in progress, we can’t give a closer view of the operation of this machine.

CNC Tensilkut III

April 7, 2009

When one thinks of CNC machining, what comes to mind? A great big machine requiring months of CNC schooling, run by a highly trained individual who does things when he can, and not when someone else necessarily wants them.

That’s not the case with the CNC Tensilkut III.

Designed to be used by people familiar with the operation of computers running Windows, the CNC Tensilkut requires minimal skills of its operator. The machine is sized for placement in the lab, to be used by the operator of the testing machine and any other lab equipment in the same vicinity.

When the CNC Tensilkut III is ordered, specimen programs are ordered at the same time, so they can be installed at the time the machine is built. Any specimens installed on the machine are located in a drop down menu, and selected by the operator. The greatest mechanical aptitude required is the use of allen wrenches to tighten the material clamps, and of standard wrenches to change the cutting bit. Included in the machine is a mist coolant system, to simultaneously cool and lubricate the edges of the specimens, resulting in improved surface and increased cutter life. Also built in is a vacuum chip reduction system. While it doesn’t collect all of the chips, it does significantly reduce the number of chips remaining within the cabinet of the machine.

The CNC Tensilkut III can be set up to cut flat tensile specimens from strips or plaques of metals and non-metallic materials. Programs we’ve written for customers have included tensile, flexural, fatigue, and tensile impact bars and blanks to be notched for charpy and izod impact tests.CNC Tensilkut III

For easy, automated preparation of test specimens on your lab’s schedule, the CNC Tensilkut III is an excellent, reasonably priced system.