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1226
[Page extract]
Coefficient of friction (COF) explained
Understanding the COF formula
The coefficient of friction (μ) is a dimensionless value calculated as:
1227
Event
Tensile Testing for Wiring Harness Connections Webinar
The only way of really knowing the strength of a crimped terminal is to pull it.
1228
[Page extract]
Peel test procedure - step by step
Prepare the specimen: Cut and condition according to the relevant standard.
Set up the machine: Install the correct fixture for the test type.
1229
[Page extract]
ASTM F3014-14
1.1 This test method describes the procedure for penetration testing sharp and blunt needles used for the placement of surgical sutures. It only describes the test procedures (Phase 1) and does not define a test medium at this time.
1230
Event
Webinar: Essentials of Adhesion/Peel strength testing
There is a reason people reach for duct tape as a fix for almost everything – adhesion strength.
1231
Case study
Clothing button pull-off TTF test
Requirement
The customer was a supplier to major UK clothing retailer Marks & Spencer, who stipulate that all fasteners and attachments must be tested to failure.
1232
[Page extract]
Key material testing standards
To ensure accuracy and comparability, elongation at break and tensile strength measurements are performed according to recognised industry standards.
1233
[Page extract]
Introduction to climbing drum peel testing
Climbing drum peel testing is a specialised method used to measure the adhesive strength between bonded materials, particularly in flexible-to-rigid substrate combinations such as aluminium skins bonded to honeycomb cores.
1234
Case study
Smoke grenade canister integrity
Customised engineering example
A manufacturer of smoke grenades required a means of testing the cap pull-off strength. The particular challenge was to grip the smooth metal cylinder for up to 5 kN of pulling force.
1235
Case study
Railcar spring testing
Requirement
Seoul Metropolitan Railway Transit Corporation required a system for testing a variety of springs in their electric railcars. The springs range in size from 3mm to 100 mm in diameter.
1236
Case study
Rotary damper gear precision torque characteristics
Requirement
A global manufacturer and distributor of component parts that are used in products across many industries including transport, beauty, consumer goods and healthcare, came to Mecmesin with a challenging torque measurement applicatio
1237
[Page extract]
How bridge torque is measured
Bridge torque is measured by applying rotational force to a closure until the tamper-evident bridges shear.
1238
Case study
Adhesive test on capsulated stoppers
Requirement
A capsulated stopper (T-top, Bar-Top or Altop®) is a natural or synthetic cork stopper where the end is glued into a cap of wood, PVC, porcelain, metal, glass or other material.
1239
Event
Texture Testing for Bakery Applications
The primary goal for using instrumentation to measure texture is to capture an objective value to something that is typically evaluated very subjectively. Texture cannot be controlled unless it measured in a consistent and repeatable manner.
1240
[Page extract]
Industry standards and customisation
Alignment with recognised standards
Mecmesin systems support compliance with globally recognised testing standards, including:
1241
Page
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1242
Case study
Cosmetics tin label peel
Customised engineering example
Testing the adhesive peel strength of packaging labels applied at the post-production stage is more representative of their performance than at the label production stage.
1243
[Page extract]
Industry-specific testing solutions
Strain at maximum stress testing is relevant wherever materials are expected to endure high loads without unacceptable deformation.
1244
[Page extract]
Students meet the Mecmesin MultiTest
Having spent time with the Mecmesin team and seen their material testers in action, WPI opted to invest in three Mecmesin MultiTest 2.5-dV testers.
1245
Case study
Cardboard beverage bottle carrier unfolding
Customised engineering example
A manufacturer of fully-enclosed cartons wanted to quality test the fold-out force for a variety of their designs, used mainly to package drinks bottles and cans.
1246
[Page extract]
Measurement and testing methods
Techniques for measuring tangent modulus
Tangent modulus is measured during tensile or compression testing, w
1247
[Page extract]
ISO 34-2 standards explained
ISO 34-2 specifies the Delft tear test procedure for vulcanised or thermoplastic rubber, ensuring testing is carried out under consisten
1248
[Page extract]
ASTM D1578
Significance and Use
Test Method D1578 for testing any spun yarn for breaking strength is considered satisfactory for acceptance testing of commercial shipments since the method has been used extensively in the trade.
1249
[Page extract]
ASTM D2062
The method(s) in the standard along with those in Test Methods D 2051, D 2052, D 2053, D 2054, D 2057, D 2058, D 2059, D 2060, and D 2061 are a collection of proven test methods.
1250
[Page extract]
The standard specifies the procedures for measuring the force required for needle penetration and the drag force as the needle travels through a simulated skin or tissue.