Stainless steel is classified into three classes which include; ferritic, martensitic and austenitic. This classification is centered on their crystal structures. The chromium content of these metals is about ten percent. The austenitic grades come with a carbon content that is low. The following steps act as a direction in stainless steel welding
Ensure safety as an initial step. Always take precaution of others and yourself since gases and fumes generally affect health while electrocution can also be hazardous. Take note of the instructions provided by the manufacturer and provide the staff with safety gadgets. Make sure that ventilation is ensured by keeping exhaust at arc, put on protective gear for body, ears and eyes. Be alert not to come in contact with naked electrical wires.
Decide on which joint design you will use. This will ensures strength of welded steel. When connecting base metals, ensure strength, metal thickness, bonding position and how accessible the joints are. Joints are of five types; lap joint, edge joint, butt joint, cornet joint and t joint. They are arranged in different combinations to ensure a variety of welds. Make use of fixtures and jigs to secure pieces. When you are connecting, clamp metal sheet, joints and fillets when working.
Choose a welding process. For the stick electrode process, heat needed for welding is from the electric arc that is flanked by the metal at the base and the metal electrode. It is a cheaper process but it is inefficient because of the slang coating or stub loss. Tig welding process can be performed on various metals. Heat used in the welding process is generated at an electric arc between base meal and the tungsten electrode. Filler metal can be added if necessary. An inert gas shields the arc.
Mig welding is faster in metals with thin gauge and with heavy plate. Heat used in the process is produced in the arc in between base metal and the filler electrode. Mig welding process is done in two ways; short circuit transfer or the spray transfer. Use the short circuit transfer in small and thin gauges. For spray transfer, spraying of droplets of metal is done.
Supposing the method of your choice need shielding gas, ensure that you have the best gas for use. The stick electrode requires no shielding gas. Use either helium alone or mix it with argon when working on thicker sections while helium is advisable for deep penetration.
Next, select filler metal. If metal pieces are same, make use of a filler metal with the same composition as the base metals for uniform properties of the weld. Consider the mechanical characteristics, the possibility of cracking and the compatibility when you choose a filler metal having different applications of base metal.
Make use of direct or an alternating current when using stick electrode method. The direct current has a one direction of flow. It makes use of straight polarity or a reverse polarity. It has an advantage as it works in settings of a low current. Use a direct current with a straight polarity.
Ensure safety as an initial step. Always take precaution of others and yourself since gases and fumes generally affect health while electrocution can also be hazardous. Take note of the instructions provided by the manufacturer and provide the staff with safety gadgets. Make sure that ventilation is ensured by keeping exhaust at arc, put on protective gear for body, ears and eyes. Be alert not to come in contact with naked electrical wires.
Decide on which joint design you will use. This will ensures strength of welded steel. When connecting base metals, ensure strength, metal thickness, bonding position and how accessible the joints are. Joints are of five types; lap joint, edge joint, butt joint, cornet joint and t joint. They are arranged in different combinations to ensure a variety of welds. Make use of fixtures and jigs to secure pieces. When you are connecting, clamp metal sheet, joints and fillets when working.
Choose a welding process. For the stick electrode process, heat needed for welding is from the electric arc that is flanked by the metal at the base and the metal electrode. It is a cheaper process but it is inefficient because of the slang coating or stub loss. Tig welding process can be performed on various metals. Heat used in the welding process is generated at an electric arc between base meal and the tungsten electrode. Filler metal can be added if necessary. An inert gas shields the arc.
Mig welding is faster in metals with thin gauge and with heavy plate. Heat used in the process is produced in the arc in between base metal and the filler electrode. Mig welding process is done in two ways; short circuit transfer or the spray transfer. Use the short circuit transfer in small and thin gauges. For spray transfer, spraying of droplets of metal is done.
Supposing the method of your choice need shielding gas, ensure that you have the best gas for use. The stick electrode requires no shielding gas. Use either helium alone or mix it with argon when working on thicker sections while helium is advisable for deep penetration.
Next, select filler metal. If metal pieces are same, make use of a filler metal with the same composition as the base metals for uniform properties of the weld. Consider the mechanical characteristics, the possibility of cracking and the compatibility when you choose a filler metal having different applications of base metal.
Make use of direct or an alternating current when using stick electrode method. The direct current has a one direction of flow. It makes use of straight polarity or a reverse polarity. It has an advantage as it works in settings of a low current. Use a direct current with a straight polarity.
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