PNEUMATIC SHEET METAL CUTTING
SUMMARY
We use simple shears for cutting sheet metal. This is a manual method, so that the sheet metal must be wasted anything happened due to errors, such as wrong size etc. Even simple cutting and April Also take a long time.Hydraulic machines are also available for cutting sheet metal. But this method is only used for heavy metal and its cost is very high.We already Use a pneumatic system for cutting sheet metal in an easy way. It operates on the handle of the double sided pneumatic control valve is controlled by a valve.Control of the compressor.
INTRODUCTION
TIN:
Tin just thin and flat metal Formed into pieces. This is one of the fundamental forms used in metal working and can be cut and bent into various shapes of a variety show. Numerous household items made of the material. The thickness can vary substantially, although extremely thin thickness is considered foil or sheet, and pieces thicker than 6 mm (0.25 inch) flat is considered.
Sheet metal is available in flat pieces or in the form of a coiled strip. Coils formed by running a continuous sheet of metal through the coil slitting.
Metal thickness gauge sheet called STI. Is usually used by steel sheet metal ranges from 30 caliber up to 8 gauge. The higher the number, the thinner gauge metal. The sensor is measured in the steel (iron), while metals non-ferrous metals, such as aluminum or copper is different; that is, Copper thickness measured ounce.
There are many different metals that can be made from sheet iron, política asaluminium, brass, copper, steel, Tin, nickel and titanium. For decorative purposes, important sheet metals include silver, gold and Platinum (Platinum sheet metal used as a catalyst as well.)
Body sheet metal is also used in the car, airplane wings, medical tables, awnings for buildings (architectural) and much more. Sheet of iron and other materials with high magnetic permeability, also known as laminated steel cores, transformers and electrical applications in machines. It is a historically important year the use of sheet metal in armour was worn by Cavalry, and sheet metal continues to have many decorative applications, including horse tack. Sheet metal workers, also known as "Tin haters" ("Metal Hammer"), which is derived from STUK Panel seams when the tin roofs.
There are three main procedures in the Layout
1. Parallel
2. Radial
3. Triangulation
Sheet metal cutting:
The cutting processes in which a piece of sheet metal is separated by a large Enough force to cause the failure of the material.
The most common is the reduction processes running shift through the use of force, and therefore is sometimes referred to as the Shearing processes.
When power is Applied the scissors, the shear stress in the material exceeds the shear strength and the material will fail, and a private in the cut.
A shearing force Caused the two tools, one top and one bottom sheet. Will these tools has the punch and matrix or the upper and lower blades, tool over the sheet provides a quick blow to the sheet metal Downward, which lies above the instrument.
There is a small gap between the edges of the upper and lower toolbar, making it easier to break the material. The size of this gap, usually 2-10% of the material thickness and depends on several factors, such as sheep shearing process, specific material and sheet thickness.
Effects of shear on a material change as the cut progresses and is visible at the edge of the shear material. When punch or blade Exposure sheet, the gap between the tools to plastically deform allows sheet and "rollover" edge. As the tool penetrates the sheet also results in a vertical Shearing Polished areas of material.
Finally, the shear stress is too large, and the material fractures per year with a small Burr Formed an angle at the edge. The height of the cut depends on several factors, including the sharpness of the tool and the gap between the tools.
Used components
Double-acting cylinders
Pneumatic operated valves
High speed steel blade
Reference:
http://seminarsprojects.in/showthread.ph...z3IBTUtNBe