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For specimen preparation in plastic applications there are a few
different methods suitable. One of the most common is to punch the
specimens by using a hand lever (or pneumatic) press and a cutting tool.
This method is used for bone type / dumbbell specimens or parallel
strips for materials like films, foils, , thin rubber and other weak
material with flat shape. Therefore you put the specimen plate below the
press with cutting knife and the specimen will be cut in the shape of
the design of the cutting tool. For different shapes we provide
different cutting knifes with different geometry.
hand lever mechanical press, adjustable working height
punching tool / cutting tool for tensile specimens of
films, foils,
thin rubber and other weak material with flat shape Alternate we
offer thermoplastic casting tools
The result of a tensile is not only the result of a good quality
material. Even the preparation of the specimen does have an effect on
this. Basic criteria for the test are the condition of preparing the
specimens.
Especially at the specimen preparation you have to
consider following condition's:
The different tools are designed to meet the requirements in optimum
conditions. So there will be no influencing in test results. We are able
to deliver tools for specimen geometry:
Specimens according ISO 294:
Tensile specimens
Type A: casting die for 2 piece of tensile
specimens according ISO 527
high speed tensile specimens
Type
C: casting die for 4 piece of tensile specimens (short)
Impact
specimens
4 piece test bars 80 x 10 x 4 mm impact test according ISO
179 / ISO 180
plates
type D1 / D2: Tool for 2 plates dimension
60 x 60 x 1 mm
60 x 60 x 2 mm
Type F: Tool for 2 plates dimension 90 x 80 x 3
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