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A rotary cutter is a tool generally used by quilters to cut fabric.It consists of a handle with a circular blade that rotates, thus the tool's name. Rotary cutter blades are very sharp, can be resharpened, and are available in different sizes: usually smaller blades are used to cut small curves, while larger blades are used to cut to straight lines and broad curves.
English: Drag-knife cutting plotter (also called vinyl sign cutter) cutting a white flex foil (used in textile printing). Video includes a closeup view of the drag-knife. Video includes a closeup view of the drag-knife.
Shearing is a kind of mechanical finish in which the appearance of the fabric is enhanced by cutting the loops or raised surface to a uniform and even height. The machine may have a spiral blade similar to a reel lawn mower. [1] [2] A shearing machine can cut the loop or the pile to a desired level. [3]
Circular knitting machines knit in a continuous circle, producing a tubular piece of fabric. Similarly to knitted fabrics manufactured on flat-bed machines, a tube of uniform-width fabric may be cut along one side to produce flat fabric which can be cut and sewn into garments. Fabric produced in this way can be cheaper than fabric produced on a ...
During normal use, cutting edges either wear and/or chip. The geometric features of cutting tools can be automatically measured within the CNC tool grinder and the tool ground to return cutting surfaces to optimal condition. Significant software advancements have allowed CNC tool and cutter grinders to be utilized in a wide range of industries.
Some blades cut through the material while others crush the material against a hard roll. Those are similar to knives. The cutting blades can be set to a desired width. Some machines have many blades and can produce a number of output rolls at once. The slit material is rewound on paper, plastic or metal cores on the exit side of the machine.
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Cutting tool materials must be harder than the material which is to be cut, and the tool must be able to withstand the heat and force generated in the metal-cutting process. Also, the tool must have a specific geometry, with clearance angles designed so that the cutting edge can contact the workpiece without the rest of the tool dragging on the ...