Tensilkut Tensile Sample Preparation EquipmentA test specimen is the most important component of tensile testing for it determines the actual physical properties of the material being tested. The specimen must conform to exact physical dimensions and must be free of induced cold working or heat distortion. Qualified laboratory personnel and accurately calibrated tensile machines are important, but the ultimate test results are based on the quality and accuracy of the test specimen. A highly skilled machinist, a precision milling machine and considerable hand finishing can achieve the required configurations of the test specimen. However, the slow milling cutter speeds create heavy chip loads and can induce severe internal distortion to the machined edges. The amount of induced cold working or heat distortion cannot be determined by visual or heat distortion cannot be determined by visual inspection, hence test results often produce erratic and inaccurate tensile properties. Specimens of light gauge sheet must be blanked, sheared or die cut to the required tensile configuration. The basic principle of shearing causes severe deformation and distortion to the critical specimen edges and creates even greater variations and errors in the physical properties. The ideal tensile specimen should duplicate the pure basic metal or plastic being tested with a total absence of tool marks, incipent cracks, induced stresses, internal deformation or heat distortion. Our range of TensilkuT machines achieve these ideal requirements and produce an almost perfect test specimen. Our product line:
The CNC Tensilkut III is the newest generation of Tensilkut machine, designed specifically for the preparation of physical test specimens from metals and non-metallics. The unit was developed for use by lab personnel without previous machining experience. The unit is shipped fully set up; the computer need only be hooked up for the system to be ready to operate. The CNC Tensilkut III employs an integral IBM compatible computer with hard drive, 101 key enhanced keyboard and mouse to prepare those specimens which we have programmed in accordance with the customer's requirements. A chip shield surrounds the entire working area of the machine, inhibiting flying chips and lessening the noise of the cutting operation. An emergency stop switch is mounted on the front of the machine, as are all power switches. The unit contains a vacuum chip removal system and a micro drop coolant system for improved edge finishes. This system features a Windows-based software featuring pull down menus for easy use; the color monitor displays tool paths, speeds and depths of cut during operation. Optional software will allow specimen contours to be imported from most CAD drawing programs. For a personalized quotation or more general information, please supply us with information on your specific application.
The CNC Tensilathe is a new, fully automatic lathe developed specifically for turning round test specimens from most metals and non-metallics. The CNC Tensilathe employs a microcomputer which is programmable to prepare a wide variety of specimens from approximately 1/4" overall diameter to in excess of 2" overall diameter. The Pentium computer with integral hard drive includes a color monitor, keyboard and mouse. This new lathe features a Windows based software featuring pull down menus for easy operation; neither machining nor CNC tool experience are required for the user to quickly learn to turn his own bars. Optional software will allow specimen contours to be imported from most CAD drawing programs; most users prefer to allow us to program their systems. This lathe uses a standard 3-jaw chuck; a 4-jaw chuck is available for gripping irregular pieces. The unit contains a Micro-Drop coolant system; a chip shield inhibits flying chips and reduces the noise of the lathe. An emergency stop switch is located on the front of the unit, as are all power switches. For further information or pricing, please contact us with information regarding your materials, specifications and anticipated volume. Blanking ( Punching) Presses with Specimen Grinding System
Specimen Blanking
Presses in C-Frame & O-Frame Designs for punching metallic
specimens out of sheet metals with thickness up to 8mm. Also a
High precision Specimen Grinding System is available.
The
Tensilkut I was designed for the specific purpose of preparing
flat metal or non-metallic test specimens. The compact size of
the equipment permits it to be conveniently located in the laboratory.
Small table top units or larger floor mounted models are available
to accomodate any space and/or work volume requirements. The specimens
are accurate to within +.0005" when prepared on the Tensilkut
machine with a Tensilbit and a standard or special master template.
Optional mist coolant and vacuum systems are available for the
Tensilkut I.
The Tensilkut II is an updated version of the original Tensilkut machine, developed in response to our customers' requests for an enhanced, yet still manually operated, economical way to prepare tensile bars and other samples. The Tensilkut II is an enclosed machine which includes integral misting, chip removal and motor speed regulation units. The chip shield around the control head protects the area around the unit from debris, while the sound deadening package absorbs much of the noise of the unit. A series of power switches located on the front of the panel enables the operator to easily access those accessories desired, while the emergency stop switch located on the machine cuts power to all systems simultaneously. For added safety, the Tensilkut II is equipped with a foot-control ("dead-man's") switch; the Tensilbit will not rotate unless the operator depresses it. As with the Tensilkut I, the Tensilkut II is accurate to within +.0005" when preparing specimens with a Tensilkut master template and Tensilbit.
The Tensilgrind is a precision contour grinding machine developed for the preparation of foil and sheet test specimens from high hardness metals and tough alloys. Tensilgrind employs the basic principle of the Tensilkut, wherein a precision master template is manually guided across the table surface with the removal of metal being accomplished in a series of light grinding passes.
Tensilkut master templates are available for flat test specimens to ASTM, JIS, ISO or other domestic or international testing standards. Templates for the most common metal and non-metallic physical test specimens, including tensile, flexural, tensile-impact and compression standards, are in stock for quick delivery; others are made to order. To prepare a test specimen, a rough sheared or sawn strip is inserted into the template between the upper and lower guide bars and is not removed from the template until both sides of the specimen are completely machined, reducing the possibility of operator error. For those specimens which are too small to be securely gripped in a conventional two-sided template, a one-sided template is used. With all master templates, the radius blends smoothly into the gauge section; any specified tapers are accurately manufactured into the bars, eliminating the need for costly hand finishing. For optimum surface finish and contour duplication on your flat test specimens, you need carbide cutting tools engineered specifically for high speed machining with Tensilkut machines. Solid carbide Tensilbits for cutting metals and plastics are precision manufactured from the finest micrograin carbide; carbide tipped Tensilbits for general purpose metal cutting and diamond plated Tensilbits for glass filled laminates, composites, kevlar and similar materials have high quality tool steel shanks.
Tensilathe/505 is a precision, semi-automatic hydraulic tracing lathe with the capability of turning bars up to 12" in length. The lathe bed is precision ground cast iron, ensuring smooth movement of the tailstock and tracer. The motor is a 115V, 60Hz motor, with a variable speed controller. The unit is supplied with a 3-jaw universal chuck; a 4-jaw chuck is also available. A drill chuck, live center and misting system are included. Precision master templates, manufactured specifically for the Tensilathe/505 by us, are accurately aligned and clamped independently above the hydraulic tracer to control the configuration of the test specimen to within +.0005". Straight templates can be used to rough out irregular bars, while contoured templates provide the proper dimensions and taper for machining the gauge section and shoulders. Master templates are made in accordance with the specifications detailed by the customer.
The Tensilsaw, powered by a high speed motor, is used to saw straight strips from glass laminates, composites or hard plastics. The thin diamond blade cuts the material for insertion into the Tensilkut template, or for flexural or other tests without heating or burning the strip edges. Strip widths of 1/4" to 1" can be accomplished with the Tensilsaw. A plexiglass guard above the blade acts as a chip shield.
Gauge Marks are accurately scribed on flat or round tensile specimens within ASTM tolerances of ±.002 inches. A floating steel bar contains two hardened steel scribe pins for rapid and consistent elongation marks on sheet specimens by unskilled technicians. Charpy & Izod Metal Sample Preparation Equipment
Hand Operated as well as Motorized Notch Cutting and Charpy Specimen Preparation Machines
Impactkut
is a precision hydraulic broaching machine designed specifically
for notching prepared 10mm square bars in accordance with ASTM
A370. The basic machine can be mounted on a metal cabinet, or
ordered pre-mounted on a cabinet with an integral coolant system,
and requires only a small amount of floor space. Laboratory personnel
without previous experience can notch a prepared bar in less than
one minute. Replacement broach tools are in stock; if the dull
broach tool has not been chipped, it can be resharpened. ASN Automatic Impact Specimen Notcher
The
Automatic Sample Notcher offers a safe, easy means of specimen
preparation for impact testing of plastics and related materials.
The compact, easy to operate notcher meets the broad range of
test specifications including, ASTM D256, ISO 180, DIN 53753,
BS 2782, JIS K 6871, and UNI 6323. The ASN is a sophisticated,
fully automatic notcher. Adjusting all feed rates and cutter speed
avoids stress to the sample during its preparation for testing.
This permits fine adjustment when working with materials of varying
hardness and softness. The ability to vary cutter speed and table
speed makes the ASN a valuable research and development tool.
A notch verification tester is provided for easy and convenient
checking of notched specimens. The tester allows for easy readability
of notch size, and overall better testing. This is standard equipment,
available in either English or SI units. Operator safety has been
ensured with the ASN. A transparent safety cover shields the working
area while allowing unimpaired viewing of samples. If the cover
is lifted during operation, an emergency shut-off is activated.
For more information, or to request a quotation please E-mail our sales department at: sales@qualitest-inc.com or call us toll-free at: 1-877-884-TEST. |
