Search results
501
[Page extract]
ISO 13939
Describes a method of comparing the performance test results of foil journal bearings, which are lubricated by air (gas) and supported by hydrodynamic force generated by the rotation of the rotating shaft.
502
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BS EN ISO 3386
BS EN ISO 3386-1 specifies a method for the determination of the compression stress/strain characteristic of low-density flexible cellular materials up to 250 kg/m3.
503
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ASTM D2646
These test methods may be used for acceptance testing of commercial shipments; however, caution is advised because information about between interlaboratory precision is incomplete. Comparative tests as directed in 5.1.1 may be advisable.
504
Case study
Toy testing to attachment strength safety standards
Requirement
The customer supplies plush giftware to retailers such as Clintons. Their plush products are manufactured to European toy safety standard BS EN 71-1:1998 (Safety of toys - Part 1: Mechanical and physical properties).
505
[Page extract]
Test method and procedure
Preparing specimens
Material selection - Use representative samples from the batch being tested.
Cutting - Prepare specimens to the exact dimensions specified in
506
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Loop tack test procedure
Sample preparation
Cut adhesive strips to the required length and width stated in the chosen standard. Condition the samples at the specified temperature and humidity before testing.
508
Event
Materials Testing: Theory and Practice Pt. 1 & 2
Materials testing is often the last step in the manufacturing process. Yet, quality is the result of both the process and the material. If the material that goes into the product is inadequate or defective, then the product may be deficient or faulty.
509
Event
Materials Testing: Theory and Practice Pt. 1
Materials testing is often the last step in the manufacturing process. Yet, quality is the result of both the process and the material. If the material that goes into the product is inadequate or defective, then the product may be deficient or faulty.
510
[Page extract]
ASTM F1269-06
These test methods cover tests to determine the shear strength of a series of ball bonds made by either thermosonic or thermal compression techniques using either gold or copper wires.
511
[Page extract]
Industry
Mecmesin is an expert in the design and manufacture of force, materials and torque testing equipment, with over 40 years’ dedicated experience in the field.
512
[Page extract]
Understanding flexural strength
Flexural strength (modulus of rupture) refers to a material’s resistance to deformation under load.
513
[Page extract]
GS1 5.0
The Hanger Specifications are intended to increase efficiency in the supplier-to-retailer pipeline by minimizing order-to-sales floor cycle time.
514
Case study
Torsion spring testing
Customised engineering example
Unlike most compression and tension springs, torsion springs are produced in a variety of forms with differing leg positions.
515
Case study
Cost effective cable strength testing
Customised engineering example
A major manufacturer of wire harnesses and connectors approached us for a cost-effective solution to pull-force test cables with different diameters having direct-bonded joints.
516
[Page extract]
ASTM D3359
These test methods cover procedures for assessing the adhesion of coating films to metallic substrates by applying and removing pressure-sensitive tape over cuts made in the film.
517
[Page extract]
How is double lap shear testing performed?
Specimen preparation
Specimens are prepared according to standardised dimensions.
518
[Page extract]
How to perform a box crush test
A successful box crush test requires consistent specimen preparation, suitable equipment and precise execution.
519
[Page extract]
Manual controls and switches
Switches come in many different configurations... toggle, rotary, mercury, push-button, reversing, relay and circuit breaker.
520
Case study
Spring design and manufacture
Requirement
Longcroft Engineering design and manufacture springs, from prototypes and hand-made custom designs, to high-volume production.
521
Case study
Prüfung der Zugfestigkeit von Kunststoffverbindungskomponenten
Anforderung Der Kunde fertigt starre Kunststoffglieder, die im montierten Zustand einen Förderer bilden. Das zusammengebaute Glied kann während seiner Lebensdauer erheblichen Belastungen ausgesetzt sein.
522
[Page extract]
Difference between tangent modulus and other moduli
Tangent modulus vs secant modulus
While both describe stiffness, their calculation methods differ:
523
[Page extract]
How is the 135° peel test performed?
Specimen preparation
Test specimens are usually strips cut from the sealed edge of a tray or container.
524
[Page extract]
How the single rip trouser tear method works
The method takes its name from the specimen shape, where a single cut partway into the sample creates two ‘legs’, similar to the shape of a pair of trousers.
525
[Page extract]
What is the trapezoidal tear test?
The trapezoidal tear test is a mechanical method used to determine the tear strength of flexible sheet materials.