초록 ▼

A method of preparing specimens of composite material for destructive testing is disclosed. A panel from which the specimens are to be cut is cut from a sheet of composite material. The panel is cut from the sheet by first cutting the sheet along a line to form an alignment edge. The alignment edge

A method of preparing specimens of composite material for destructive testing is disclosed. A panel from which the specimens are to be cut is cut from a sheet of composite material. The panel is cut from the sheet by first cutting the sheet along a line to form an alignment edge. The alignment edge is placed against a fence and the panel is cut with a first saw blade to a predetermined width and length. A first set of pads is placed on a fitting, the pads being spaced apart by a predetermined distance by a plurality of pins extending from the fitting. The panel is placed on top of the pads. A second set of pads is placed on top of the panel. The fitting is clamped to a table. The table moves into the path of a second saw blade which cuts the panel in a first direction. The fitting is rotated and the table is moved into the path of the second saw blade again to cut the specimens. The smoothness of the surface cut by the second saw blade is significantly smoother than the smoothness of the first saw blade. Providing smooth surfaces on the specimen aids in ensuring that destructive testing of the specimen provides an accurate measure of the quality of the material.

대표청구항 ▼

The method of preparing a specimen of a composite material for testing comprising: cutting said material along a grain line to form an alignment edge; placing a spacer of a predetermined width between a fence and a saw blade; placing said alignment edge against said spacer; cutting said material to

The method of preparing a specimen of a composite material for testing comprising: cutting said material along a grain line to form an alignment edge; placing a spacer of a predetermined width between a fence and a saw blade; placing said alignment edge against said spacer; cutting said material to a predetermined width corresponding to the width of said spacer; placing a second spacer of a different width between said fence and said saw blade; cutting said material to a predetermined length corresponding to the width of said second spacer; placing a first set of pads on a fitting, said pads being spaced apart by a predetermined distance by a plurality of pins located between said pads; placing said material on top of said pads; placing a second set of pads on top of said material, said second set of pads being spaced apart a predetermined distance by a plurality of pins therebetween; affixing said sets of pads to said material; coupling said material and pads to a second fitting; cutting said material with a second saw in a first direction; rotating said fitting holding said material; and cutting said material in a second direction using a third saw to form said specimen for testing.