The cam plastometer is a

physical test A physical test is a qualitative or quantitative procedure that consists of determination of one or more characteristics of a given product, process or service according to a specified procedure.ASTM E 1301, Standard Guide for Proficiency Testing by ...

ing machine. It measures the resistance of non-brittle materials to compressive deformation at constant true-strain rates. In this way, it can be compared a bit to the Gleeble®. In the early days, the machine operates at relatively low

strain rate In materials science, strain rate is the change in strain ( deformation) of a material with respect to time. The strain rate at some point within the material measures the rate at which the distances of adjacent parcels of the material change ...

s, but over time it has been enhanced and currently it can operate over a wide range of strain rates The machine is

patent A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an sufficiency of disclosure, enabling disclo ...

ed under the name of "United States Patent 4109516".Cam plastometer (freepatentsonline.com)
/ref> In the machine, deformation compressive forces are applied to a specimen by two flat, opposing

platen A platen (or platten) is a flat platform with a variety of roles in printing or manufacturing. It can be a flat metal (or earlier, wooden) plate pressed against a medium (such as paper) to cause an impression in letterpress printing. Platen m ...

s which impact a flat, rectangular specimen. The deformation forces can be varied during operation, to simulate actual conditions which occur during industrial pressing and forming operations. The plastometer is also capable of torsional testing of specimens". The cam plastometers are expensive and there are only a few of them in the world.G.E. Dieter et al., ''Handbook of Workability and Process Design'', ASM International 2003, page 49

References

{{DEFAULTSORT:Cam Plastometer Mechanical engineering Measuring instruments