Apparatus for machining composite material test specimens
OwnerWilliam Crockfordinventor
Life of this patent
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Abstract
This application is drawn toward a combined coring and sawing machine for composite materials. The preferred embodiment combines the functionality of two machines typically used in the prior art and minimizes both the cost and errors associated with larger cutting tools, e.g. diamond cutting devices, used in the prior art. Combining variable speed motor operation with pressure actuated advancement of cutting tools and automatic workholding actuation provides a system which is effectively open-loop “load” controlled as opposed to the open-loop “displacement” control systems most often used in the prior art. Simple and economical specimen ejection techniques are a further improvement over the prior art which often includes no ejection facility at all.
Claims1
A material machining device comprising:
- a frame adapted to support at least one power generating means;
- at least one power transmitting means in operative association with said power generating means;
- rotatable workholding means adapted to hold a rotating workpiece specimen, said specimen substantially defining a right circular cylindrical shape of a first dimension;
- and
- at least one cutter means adapted to be linearly actuated for cutting said specimen,
- wherein said at least one power generating means in operative combination with said at least one power transmitting means is adapted to provide variable movement to said workpiece;
- whereby a right circular cylinder test specimen of a second and lesser dimension is produced, said test specimen having a dimension and finish suitable for subsequent engineering material property testing.
Dependencies are inferred from the claim text.