welding are two types of gas-welding processes. Both require a gas-fueled The gas and oxygen must be mixed to correct proportion and pressure in the torch. Gas welding has been around for many years and when it is carried out by a skilled . When using an oxygen-fuel gas process to perform welding or cutting, the. Although the oxy-acetylene process has been introduced long time ago it is still applied for its Equipment for oxyacetylene welding consists of just a few ele-.
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GAS WELDING AND CUTTING. Oxy-fuel welding, commonly referred to as oxy welding or gas welding is a process of joining metals by application of heat. This article includes all detail about gas welding process like its working principle , major equipment, application and its advantages and. making a gas weld are as follows: edge preparation, spacing and alignment of the parts, temperature control. (before, during, and after the welding process).
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April 16, February 15, Admin 6 Comments Fasteners , gas welding , liquid state welding , types , Welding. Sharing is Caring: Gas welding is a type of liquid state welding process in which fuel gases burns to generate heat. This heat is further used to melt interface surfaces of welding plates which are held together to form a joint.
In this process, mostly oxy-acetylene gas is used as fuel gas. This process can be done with or without help of filler material.
If the filler material is used, it is fed directly into the weld area manually. Gas welding is a most important type of welding process.
It is done by burning of fuel gases with the help of oxygen which forms a concentrated flame of high temperature. This flame directly strikes the weld area and melts the weld surface and filler material. The melted part of welding plates diffused in one another and create a weld joint after cooling.
This welding method can be used to join most of common metals used in daily life.
Welding torches are most important part of gas welding. Both the fuel gas and oxygen at suitable pressure fed through hoses to the welding torch. There are valves for each gas witch control the flow of gases inside the torch. Both gases mixed there and form a flammable mixture. These gases ignite to burn at the nozzle.
The fire flame flow through nozzle and strikes at welding plates. Many different gases can be used as fuel for gas welding, and electricity is not needed to power the welding system, resulting in a flexible and portable fabrication method. All gas welding techniques require proper safety equipment for the welder and storage of the welding gases.
Oxy-Acetylene Welding Oxy-acetylene welding uses a mixture of acetylene gas and oxygen gas to feed the welding torch. Oxy-acetylene welding is the most commonly used gas welding technique. This gas mixture also provides the highest flame temperature of available fuel gases, however acetylene is generally the most expensive of all fuel gases. Acetylene is an unstable gas and requires specific handling and storage procedures.
Oxy-Gasoline Welding Pressurized gasoline is used as a welding fuel where fabrication costs are an issue, particularly in locations where acetylene canisters are not available. Gasoline torches can be more effective than acetylene for torch-cutting thick steel plates. The gasoline can be hand-pumped from a pressure cylinder, a common practice by jewelry makers in impoverished areas.
MAPP Gas Welding Methylacetylene-propadiene-petroleum MAPP is a gas mixture that is much more inert than other gas mixtures, making it safer for hobbyists and recreational welders to use and store. MAPP can also be used at very high pressures, allowing it to be used in high-volume cutting operations.