Chopping and cutting metal: how they differ?
Sheet metal serves only as a raw material for the production of galvanised round tube and the manufacture of various parts. For its processing, chopping and cutting of metal is common. In this article, we will explain how they differ and when they are common.
What is the use of metal cutting and galvanised round tube?
Distinguish between manual and mechanized cutting of metal. Within the framework of this article, we will only talk about mechanized. Most often, guillotine shears are common for this purpose. Such equipment consists of the following elements:
- stationary or movable table for placing a sheet of metal or work piece;
- stop-retainer and clamps to secure it;
- an upper movable beam with a cutting blade;
- a lower fixed blade to improve the accuracy of work (not all equipment models have it)
- galvanised round tubecan be manual, mechanical or hydraulic driven.
- The former allow you to work with metal up to 0.5 mm thick.
- They are compact, and most often they are common for domestic purposes
- Also common for cutting reinforcement or thin rolled products.
What is hydraulic guillotine?
Hydraulic guillotines come with a control unit, with which you can set several cutting parameters, including the cutting angle, operating speed, pressure, etc. Guillotines allow you to get an even metal cut along the cut without chipping and uneven bevels.
Defects in the form of a non-linear edge or the appearance of burrs can be the result of poor fixation of the sheet metal.
Metal cutting
Guillotines are common only to obtain parts of a simple shape. Instead of guillotines for cutting galvanised round tube, press-shears or angle-notching machines are sometimes common. The shears are suitable for working with sheet, shaped, strip and long products. With their help, it is convenient to punch holes or cut grooves. Angle punching machines are designed for angular punching of rolled metal.
For what purposes is metal cutting common?
Cutting of metal with a guillotine is common to obtain parts of a simple shape from sheet metal products: trapezoidal, square, rectangular or triangular. In this way, embedded parts we manufacture that are common in the construction of foundations for technological equipment or reinforced concrete structures.
Types of metal cutting and equipment common for Galvanised round tube
The existing types of metal cutting are easy to divide into three groups:
The first includes mechanical methods: band sawing, as well as longitudinal and cross cutting
For galvanised round tube cutting, special machines are common. There are several varieties of them, but they all work in a similar way and cut the part with a band saw. In the presence of computer control, such machines provide a cutting accuracy of up to 0.05 mm.
This method of cutting gives clean edges does not overheat the metal, but it is impossible to make a shaped work piece with its help.
Band saw cutting
The use of a band saw is optimal for working with shaped steel. When using slitting, a sheet of comes through a cutting unit, which includes a shaft with cutting discs. Such machines are convenient for obtaining strips or strips from sheet metal rolling. They are capable of cutting metal up to 1.5 mm thick at speeds up to 300 m / min.
Longitudinal cutting of galvanised round tube
Longitudinal cutting of galvanised round tube is common only to obtain strips or strips from thin-sheet rolled products. For cross-cutting, machines are common in which work pieces in the form of strips come into parts of a simple shape, passing through a system of cutting discs. This method is also suitable only for thin products.
The second group includes thermal methods: gas-oxygen and plasma.
To cut metal using oxy-fuel cutting, two gases are common: propane or acetylene and oxygen. Using the first gas, the metal heats to + 1200 ... 1300 ° C. Oxygen is important to maintain combustion. In this way, galvanised round tube up to 300 mm thick is easy to cut and parts of any shape are easy to obtain.
Oxy-fuel cutting
Oxy-fuel cutting is common to work with thick rolled products. To perform plasma cutting, the metal exposes to a jet of ionized gas, which heas to +15,000 ... 30,000 ° C and comes by means of an electric field to a speed of 1500 m / s.
This method allows you to work with any metal with a thickness of up to 100 mm and makes it possible to obtain a part of any shape with clean edges.
Plasma cutting of Galvanised round tube
Plasma cutting can be common for thick rolled products. The third group includes a high-precision method: laser. It is similar in performance to plasma cutting, but uses a laser beam instead of plasma. This is sufficient for working with galvanised round tube up to 10 mm thick. For larger thicknesses, an additional auxiliary gas must be common: nitrogen, argon or oxygen.
It is important to blow out molten metal particles at the cut. Laser cutting is suitable for working with metals up to 16 mm thick, provides high accuracy of parts (deviation no more than 0.05 mm) and allows you to get products of any shape.
Laser cutting
Generally, laser cutting can be common to produce parts of any shape with high precision. Metal cutting is common to obtain blanks of simple or complex shapes from sheet galvanised round tube.
The cutting method depends on the thickness of the metal, its brand and the shape of the future part or work piece.
What types of stainless wire manufacturers make?
Depending on the purpose and characteristics, stainless wire is classified into one of the categories:
- Knitting is good for packing work, making masonry mesh, ropes and mesh-netting, connecting reinforcement when reinforcing concrete structures.
- Welding is common to perform semi-automatic or automatic welding.
- Cold-worked is common in the manufacture of nets for fences and barriers, electrical wires, car parts.
- Spring is common for the manufacture of springs, pins, hooks and other products for which elasticity is important.
Conclusion Galvanised round tube
Cutting metal allows you to get work pieces only of a simple galvanised round tube. The cutting is more varied. If you have the necessary equipment, it allows you to work with almost any metal and obtain parts of complex shapes.
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