Automotive Industry Tensile Testing

In today’s day in age, the automotive industry has a huge role in our everyday lives. We drive or use public transportation to get around almost all the time! It is essential quality standards are put into place to ensure safety. To make sure the materials used in the automotive industry can withstand everyday wear and tear, materials undergo testing.

Everything is tested from the seatbelt to the metal used for the car body. Quality control specialists conduct tensile, compression, bending, and hardness tests to conduct strength evaluations done in accordance with ISO, ASTM, and other standards. Tensile testing is a common test method used in force measurement and material testing. “Tensile testing is used primarily to determine the mechanical behavior of a component, part or material under static, axial loading”.

Material testing measures the mechanical properties of materials. Tensile testing is used to help select material specifications to ensure quality. Tensile properties such as strength, elongation, deformation reaction, and ability to withstand applied force over time are measured to become quantifiable and qualifiable. The sample’s shape changes when a load is applied. During a tensile test, it is important to make note of the change in dimension at various applied forces. This helps determine performance and suitability when selecting materials.

Force measurement testing looks for the maximum force value. This test often measures the amount of stress needed to cause deformation, the amount of deformation before fracturing, or the maximum stress the sample can withstand. For quality and safety reasons force measurement testing is commonly done in an engineering laboratory; However, with the increase in recognition, it’s been more common on production floors.

Tensile testing can be performed with very basic measuring equipment such as a handheld force gauge, or with a high-end system equipped with software and ancillary instruments. The force gauge measures the pull force applied to determine maximum force. The systems are able to test more precisely and use large volumes of data to generate more accurate measurements. To guarantee your products meet ISO and ASTM quality standards, your equipment must be measuring correctly, making routine calibration an absolute necessity.

GRM knows the importance of accurate force measurement equipment. We offer ISO 17025 accredited force gauge and tensile testing machine calibration. ISO 17025 is in accordance with ISO 9001, so all quality standards are met. Contact us for an estimate!

 

 

SOURCES:

Tensile Testing Principles

ASM International

GRM Helps Local Students Complete Study Aimed to Heal Third World Countries

When you’re conducting a study focused on easing the sizable medical cost in third world countries – where do you go to conduct research? You’re regional metrology company probably wouldn’t be your first thought, but that’s exactly where Professor Sinniah and his research students went!

Dr. Sinniah is a professor of chemistry at Calvin College in Grand Rapids, MI. His three research students are chemistry and bio-chemistry majors. They were nearing the end of their summer project when a problem arouse. The equipment being used to perform the tests was proving to be incompetent, for the students needed to use high-quality metrology equipment in order to generate results.

The purpose of their study was to determine if mesh fabric in mosquito nets could serve as a substitute for the medical mesh used in hernia repair surgeries in third world countries. Medical mesh is these regions is very expensive and often unaffordable, but mosquito nets are much more economical – priced roughly around $20. If the mosquito material was established as a sufficient substitute to the medical mesh, third world countries could confidently make the switch to the more cost-effective and equally safe solution. While this practice is already in use in some parts of Africa, the Calvin student’s study ultimately confirms the mosquito nets are a suitable, safe and practical alternative.

Hannah, Rachael and Ellie, Calvin College chemistry and biochemistry students, use Grand Rapids Metrology’s Force Measurement System to test the break strength of mosquito net mesh.

The students had performed a comprehensive heavy metal analysis of the two materials prior to their visit at Grand Rapids Metrology, however they still needed to measure the break strength of the mesh materials post sterilization. Recall their equipment was not suited for the testing of such materials, the Calvin students needed GRM’s help.

After a brief internet search, Dr. Sinniah came across Grand Rapids Metrology’s website prompting a call to our office. After speaking with our Technical Sales Manager, Seth Damoose, the Calvin team was all set to visit our calibration lab and use our Starrett Force Measurement System 500. This machine is able to grasp cloth and other thin materials. The machine the students used at Calvin was designed to hold metals and plastics making it ineffective for testing mesh.

The Starrett FMS500 is ideal for tensile or compressive testing. The software features test templates that require minimal operator setup in order to perform routine test methods such as the student’s push/pull to break test as seen here.

 

Dr. Sinniah and his students were very grateful to have access to Grand Rapids Metrology’s calibration lab and Starrett Force Measurement System. They reported the FMS500 to work impeccably for their application. They hope to purchase a force measurement system of their own to be used in upper-level teaching and research laboratories.

Dr. Sinniah said “We found the Starret FMS500 to work perfectly for what we wanted to accomplish.”

Grand Rapids Metrology was more than happy to help the Calvin students with their summer project, one that’s impact will extend far beyond West Michigan.

If you’re seeking to perform similar tests or purchase a force measurement system of your own, contact us or easily request a quote today!

Torque’s Impact on You

What Is Torque?

Torque is rotational or turning force and is calculated by multiplying length (measured from “center of drive” to “center of handle) and force.

Why Is Torque Important?

If torque is not properly applied, it can lead to safety hazards such as stripped threads and premature loosening, or broken fasteners. Any of these outcomes could lead to product failure resulting in damages to other equipment or workers. However, if it is applied accurately, it is used to fasten specified components to precise values. There are three basic measures that influence torque application. They are:

  1. Condition of the components – if the fastener has rusted or stripped threads, it could result in poor performance and lead to failure.
  2. Accuracy of the instrument – if the torque wrench is not accurately calibrated, the fastener may be too loose or tight which can also result in product failure.
  3. Properly applied torque values – once the torque wrench is calibrated, it is important to apply the correct amount of torque to the fastener to ensure high performance.

For more information, click here.

 

How Can We Help?

GRM offers the full line of CDI/Snap-On and TorcUp products, including hydraulic wrenches, impact sockets, pneumatic wrenches, and hydraulic pumps. We are A2LA certified in torque wrenches and measuring devices.

 

Please, contact a Grand Rapids Metrology representative with additional questions.

 

For a full list of TorcUp products, click here.

 

For a full list of Snap-On products, click here.

 

PRODUCT OF THE WEEK: Starrett Force Measurement Testing Systems – For Medical Device Manufacturers

Starrett Innovation.

Helping You Make Your Products Better.

Our new Starrett force measurement systems exemplify the craftsmanship and quality synonymous with all Starrett products. Since 1880, Starrett has helped leading global manufacturers make better products through innovation, advanced measurement technologies and a commitment to customer satisfaction.

Starrett force measurement systems are optimized for demanding, high-volume manufacturing environments. Our systems are designed to help you improve your testing while increasing productivity, production yields and product quality.

The Better Solution for Force Measurement.

The Starrett FMS Series is a family of new and innovative force measurement systems. Available in four load capacities, these universal testing systems are ideal for general purpose force testing, demanding high-volume production testing, and exacting quality control testing.

Starrett force measurement systems are your solution for tensile, compression, flexural, shear, coefficient of friction, and cyclic testing. You can easily and efficiently perform push/pull testing, break testing, constant hold testing or tests that muse meet international testing standards from ASTM, ISO, BS, DIN and others.

The FMS Series consist of a single-column electro-mechanical testing frame, combined with our L2 Series digital controller and a Starrett load cell sensor.

Features & Specifications

  • Universal Testing
    • Tension, Compression, Cyclic, Flexural, Shear, Creep, Peel, COF
    • Four Load Capacities: 500N, 1kN, 2.5kN and 5kN
    • 0.001 to 50.0 in/min (0.02 to 1270mm/min) Test Speed
  • Outstanding Measurement Accuracies
    • Better than 0.1% Load Measurement Accuracy
    • Smart Load Cell Sensors per IEEE 1451-4
    • Better than 0.2% Speed Rate Accuracy
    • Meets or Exceeds ASTM E4
  • Innovative User Interface
    • Multi-touch Color Tablet PC Operation
    • Test Templates for Simple Testing
    • Advanced Test Builder for Complex Testing
  • Test to Internationally Recognized Test Methods
    • ASTM Test Methods
    • BS Test Methods
    • DIN Test Methods
    • ISO Test Methods
  • Lead Manufacturing & System Integration
    • Compact Footprint
    • Interface with I/O Devices
  • CE Compliant

Precision…

For Medical Device Manufacturers.

Advances in medical devices increase life expectancy and improved the way we live and recreate. Medical device researchers are continually evaluating products and materials.

Medical adhesives, syringes, artificial skin, foam orthotics, stents, medical gloves and other products require critical and exacting measurements prior to commercialization.

Starrett FMS Series can be used to test medical devices for their form, fit and function. Because of their ease of use and ability to create sophisticated test methods using our L2 Series software, FMS Series systems are ideal for medical device manufacturers. The ability to measure, analyze and collect data for exporting to quality control applications or to a network, make the FMS Series a cost-effective solution for medical device manufacturers around the world.

FMS Series solve these testing problems and more…

  • Syringe Test
  • Plunger Force Test
  • Tissue Test
  • Adhesive Strength Packaging
  • Tissue Adhesive
  • Needle Insertion
  • Tubing
  • Stent Dislodgement
  • Catheters
  • ASTM F88 – Seal Strength
  • ASTM F382 – Metalic Bone Plates
  • ASTM F451 – Bone Cement Strength
  • ASTM F564 – Metallic Bone Staples
  • ASTM F1828 – Ulteral Stents
  • ASTM F1839 – Foam Devices
  • ASTM F1874 – Sutures Bend Test
  • ASTM F2009 – Dissassembly Force Taper Connects
  • ASTM F2079 – Stents Tensile Strength
  • ASTM F2132 – Puncture Resistance
  • ASTM F2183 – Punch Testing
  • ASTM F2255 – Lap Shear Testing
  • ASTM F2256 – Tissue Adhesives
  • ASTM F2258 – Tissue Adhesives
  • ASTM F2392 – Burst Strength Sealant
  • ASTM F2458 – Closure Strength
  • ASTM F2477 – Stents Strength
  • ASTM F2502 – Plates & Screws
  • ASTM F2516 – Tensile Nitinol Wire
  • ASTM F2606 – Bend Vascular Stent
  • ASTM D6319 – Medical Gloves
  • BS EN 455-2 – Medical Gloves
  • ISO 7886-1 – Hypodermic Syringe
  • ISO 14879 – Tibial Trays
  • ISO 11193 – Medical Gloves

Source: http://pdf.directindustry.com/pdf/starrett/force-measurement/11639-345787.html

 

Grand Rapids Metrology is Michigan’s premire source for measurement solutions and has provided sales, service, calibration and rental of weighing and measuring equipment since 1922. GRM is a proud distributor of Mitutoyo metrology equipment. Please contact http://www.grmetrology.com for additional information and product request forms.

Tel: 800.348.5701