Preform for manufacturing a material having a plurality of voids and method of making the same

A method for manufacturing a coated, beaded preform for forming a plurality of voids in an engineered material, said method comprising:

• providing a first flow of an extruding coating material to die;
• providing a beaded preform within said first flow;
• wherein said beaded preform is coated with said coating material;
• and
• extruding said first flow with said beaded preform from an opening to form a tow.

A method for producing an engineered material having a plurality of voids said method comprising:

• guiding a plurality of beaded preforms into a supply of a first material;
• coating said plurality of beaded preforms with said first material;
• and
• shaping said coated preforms into a predetermined form;
• and
• consolidating said form.

A method of manufacturing an engineered material having a plurality of organized voids comprising:

• providing a beaded preform comprising a strand of adjacently positioned beads into any one of the following manufacturing processes:
• additive manufacturing, atomistic manufacturing, layered manufacturing including fused deposition modeling, stereo-litography, optical fabrication, solid base (ground) curing, plasma spray forming, sputtering, vapor deposition,
• deformation and forming including bulk deformation processes including impression-die forging, open-die forging, coining, piercing, hubbing, fullering and edging, roll forging, ring rolling, direct extrusion, indirect extrusion, hydrostatic extrusion and impact extrusion,
• sheet metal forming processes including shearing, bulging, rubber forming, high-energy-rate forming, superplastic forming, deep drawing, embossing,
• material removal including cutting, grinding, electrical discharge machining, water-jet machining, abrasive-jet machining, chemical machining and electrochemical machining and grinding,
• casting including permanent molds including slush casting, pressure casting, insert molding, centrifugal casting and infiltration casting. expendable molds including vacuum casting, ceramic-mold casting, plaster-mold casting, shell-mold casting and sand casting, gel-casting, injection molding, compression molding, transfer molding, insert molding,
• particulate material processing including sintering, cold isostatic pressing, and hot isostatic pressing, and
• assembly and joining processes including friction stir welding, Resistance welding, explosive welding, brazing and soldering, arc welding, and laser welding.