Tester Zmęczenia Fatigue Testing Machine Terco MT205
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Tester Zmęczenia Fatigue Testing Machine Terco MT205
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PROSZĘ DZWONIĆ *** *** ***
Poniżej zamieszczam informacje, które udało mi się znaleźć w Internecie na temat tego urządzenia (niestety tylko w j. Angielskim)
Info below was extracted from research I did on TERCO's educational support products. TERCO is a Swedish company.
Rotary bending
With the varying load to which most machines are
exposed it is not the static break point but the fatigue
limit which decides when a fracture occurs.
Fatigue strength is thus of very great significance in
machine design.
MT 205 provides a simple way of learning the effect
of radius of fillet, surface smoothness, etc. on a material
subjected to fluctuating flexural stresses.
Technical data:
MT 205 Fatigue Testing Machine with Analog counter (0-9,999,999 cycles)
Test piece diameter 8 mm (Test pieces NOT included.)
Max. load 255 N
Supply voltage 110V 60Hz
Speed (approx) 3000 rpm resp. 3600 rpm
Dimension 980x280x460 mm
Weight approximately 53 lbs
Examples of experiments
- Test the fatigue strength of a material subjected to
changes in bending stress
- Investigate the effect of the radius of the fillet and
suface smoothness
- Record a simple Wöhler diagram
- Determine a Wöhler diagram for different radii of fillet
and for different materials
Rotary bending
With the varying load to which most machines are
exposed it is not the static break point but the fatigue
limit which decides when a fracture occurs.
Fatigue strength is thus of very great significance in
machine design.
MT 205 provides a simple way of learning the effect
of radius of fillet, surface smoothness, etc. on a material
subjected to fluctuating flexural stresses.
MT 205 is driven by a 1-phase asynchronous motor.
The number of load changes is read directly on the analog counter.
The tapered test piece is attached to a very stable shaft supported
in two spherical ball bearings.
The force is applied to the test piece with a spring and
can be varied between 0 and 255 N
Test can be carried out with
a) Fixed applied force
b) Fixed deviation
MT 205 has a micro-processor which, on the fracture
of the test piece, automatically switches off the voltage
to the motor via a relay. This ensures exact measurement
and is of great advantage in experiments of
a lengthy nature, such as the recording of complete
Wöhler curves.
The equipment
- Fatigue Testing Machine, No accessories included but are available from TERCO.
Working principle
Static fracture
Fatigue fracture
The current version of this machine is the TERCO
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FIRMA HANDLOWA
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