ASTM A938 PDF

ASTM A and ISO address the requirements for simple torsion (twist) testing of metallic wire. Both testing standards require that a wire specimen be. This standard is issued under the fixed designation A ; the number 1 This test method is under the jurisdiction of ASTM Committee A01 on Steel,. Stainless . ASTM A covers torsion testing of wire. ASTM A provides knowledge of the ductility of a wire when under torsion loading. A torsional test machine with.

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Additionally, some labs want to know the torque required for specimen failure and would also like to see a plot of torque versus the number of turns for the entire test. Challenges The challenges of testing wire to these standards aa938 The MT torsion systems are supplied with precision torque cells that can measure torque accurately down to 0.

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ASTM A ISO Torsion Testing Wire – Instron

Axial Tensile Force – To prevent the wire from bending away from the axis of rotation, a small tensile load is required to keep the specimen straight during testing. Contact Us View Accessories Catalog. Subscribe to Instron News! Bluehill A93 Brochure Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience.

ASTM A938 Torsional Test of Wire

As the preferred solution for low-force torsion testing and component in-service simulation, the MT MicroTorsion Series test wires, fasteners, switches, and springs in the biomedical, automotive, and aerospace industries. Guide rails enable awtm assembly to move freely in the axial direction while a test is being performed. Torque versus Rotation plots are automatically generated during the test and indicate where the wire yields and fractures.

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Lathe style chucks can be supplied for larger diameters and can also be modified to allow for clamping a wire with a 90 degree bend on the ends. MicroTorsion Series As the preferred solution for low-force torsion testing and component in-service simulation, the MT MicroTorsion Series test wires, fasteners, switches, and springs in the biomedical, automotive, and aerospace industries.

The real-time measurement data can also be plotted graphically during the test. By continuing to use our site, you accept our cookie policy.

Specimen Lengths – Instron’s MT torsion testers feature an adjustable tailstock assembly that allows for easy adjustment of the test opening. We use cookies to improve your browsing experience.

Torsion Testing Wire to ASTM A938 and ISO 7800

Email addresses can only contain letters, numbers and the following special characters: Both testing standards require that a wire specimen be twisted about the longitudinal axis until it fails. Total Turns Measurement – The total number of turns to fracture are directly measured by a digital rotary encoder and automatically recorded by the testing software.

Software for Series Systems.

The MT torsion models are available with extended length if longer specimen lengths are required. Keyed chucks W-MTB provide smaller diameter clamping.

Gripping Maintaining the rate of turning Applying a constant astmm force Accommodating various specimen lengths Shielding against broken specimen fragments Automatic turn counting Measuring and plotting torque Instron Solution Gripping – Many common wire diameters can be gripped with standard drill style chucks.

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ASTM A – 07 Standard Test Method for Torsion Testing of Wire

Users of previous versions of software such as Bluehill 2 and Bluehill 3 can easily upgrade to the newest version of Bluehill. Please confirm that you agree with our privacy and cookies policy to submit this form. Our MT1 and MT2 torsion test systems offer an axial preload assembly that provides a constant axial astmm and can be adjusted for different size specimens.

Check this box to receive xstm commercial email from Instron focusing on products, upcoming events, and more! WaveMatrix 2 for Dynamic Testing. Keyless chucks W-MT01 offer a toothed profile that helps reduce slippage.

Tests cannot be run when the door is opened and the rugged Lexan shield helps protect the operator from asmt specimen fragments that may be ejected during failure.

Onsite Training At Your Facility. Speed of Twisting – The rate of testing can vary and both standards provide recommended ranges that are based on the wire diameter. Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience.

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