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Showing posts with label cutting process. Show all posts
Showing posts with label cutting process. Show all posts

Wednesday, July 16, 2008

How does Plasma cutting

How does plasma cutting compare to oxyfuel cutting?
Plasma cutting in any type of conductive metal - steel, aluminum and stainless are just some examples. With mild steel, operators learn faster than thicker cuts with alloys.

Oxyfuel cuts by burning or oxidizing, the metal is separation. It is therefore limited to steel and other nonferrous metals, the oxidizing. Metals like aluminum and stainless steel form an oxide, that further inhibits oxidization, so that conventional oxyfuel cutting impossible. Plasma cutting, but not on the oxidation to work, and thus it can cut aluminum, stainless steel and other conductive material.
Plasma cutting 
While other gases can be used for the plasma cutting, most people today use compressed air for the plasma gas. In most shops, compressed air is readily available in plasma and thus does not require fuel gas and compressed oxygen for the operation.



Plasma cutting is usually easier for the beginner to master, and on thinner materials, plasma cutting is much faster than oxyfuel cutting. But for heavy steel profiles (1 inch or larger), oxyfuel is still preferred because oxyfuel is usually faster and heavier plate applications, very high-capacity power supplies are required for plasma cutting applications.

Saturday, July 12, 2008

The cutting process

The process of cutting with plasma is an electical reaction, so that, unlike other techniques cutting, plasma cutting-cutting can only materials that conduct electricity. If a job file is started, the machine moves to forcibly open the first or cut position and the torch moves down in the direction of the material. At the end of the torch is a device, a so-called resistive sensor. Once the sensor makes ohmic contact with the surface of the material. It closes an electrical circuit, informing the machine that it has reached the surfaceof the material. The torch then lifts of the material on the amount forcibly open. The amount of open violence is higher than the cutting height to prevent pig iron from shooting directly back into the torch during the process forcibly open.
CNC Plasma cutting
Once the force open is completed, the torch moves on the reduced amount and begins to cut the amount optinum forcibly open, cut height, and all are feeding on the basis of consumer goods and materials be cut. On plasma cutting sophisticated system, all these parameters are automatically adjusted.



Once the cutting begins, the distance between the torch and the upper end of the materials is maintained by reading the voltage from the plasma arc, in a process known as automatic torch height. Generally sheet material is not totally flat, especially thin-gauge material. To ensure a quality cut. It is important, a constant distance between the torch and the surface. Maintaining a constant level requires a response ATHC system. On some systems, you are in power is a rate of 500 times per second, and the reading used to the 2-axis up or down. The result is a quality cut, that does not require user intervention.


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