CUTTING


'Cutting' is the separation of a physical object, or a portion of a physical object, into two portions, through the application of an acutely directed force. An implement commonly used for cutting is the knife or in medical cases the scalpel. However, any sufficiently sharp object is capable of cutting if it has a hardness sufficiently larger than the object being cut, and if it is applied with sufficient force. Cutting also describes the action of a saw which removes material in the process of cutting.
Cutting is a compressive and shearing phenomenon, and occurs only when the total stress generated by the cutting implement exceeds the ultimate strength of the material of the object being cut. The simplest applicable equation is ''stress = force/area'': The stress generated by a cutting implement is directly proportional to the force with which it is applied, and inversely proportional to the area of contact. Hence, the smaller the area (i.e., the sharper the cutting implement), the less force is needed to cut something.
When referring to propagating plants, cutting is one of the methods that can be used. It involves cutting a part of the plant typically a healthy shoot, with sharp and sterile scissors or any other cutting device, and then placing the removed part in water. Some cuttings do not require water. Certain shoots when cut are able to grow when placed in vermiculite or potting soil. However, the former is the easiest to do as most shoots when cut from the main plant need time to grow roots, and then they are able to be transferred to potting soil.

Contents
Tools commonly used for cutting
External links

Tools commonly used for cutting


Main articles: Cutting tool


Axe

Blade

Bandsaw

Chainsaw

Cheese grater

Circular saw

Chop saw

Diamond Blade

Drill bit

Diamond tools

Fingernails

Front teeth

Broken Glass

Hacksaw

Handsaw

Katana

Knife

Laser

Machete

Mezzaluna

Milling cutter

Paper (paper cuts)

Pizza wheel

Plasma Cutter

Razor blade

Saw

Scalpel

Scissors

Switchblades

Sword

TantÅ

Tool bits, turning tools for lathes

Wakizashi

Water jet cutter

External links



★ Tony Atkins. "Optimum blade configurations for the cutting of soft solids"

Howstuffworks

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