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 any of the following processes; Stick electrode welding process by which there is an electric arc between a base metal and metal electrode which generates heat that is needed in the bonding process. It is an inexpensive and efficient process due to slang coating and stub loss. Tig welding process is performed easily on various metals. The electric arc that generates heat is between the base metal and tungsten electrode. If necessary, a filler metal is added. The arc is shielded by an inert gas.
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.
If your method of welding requires shielding, determine which gas to use. The Shield electrode does not require a shielding gas. For the tig process, shield with argon if the metal thickness is approximately half. Use argon helium mixture or just helium if the metal is thicker. Employ helium for deeper penetration. Two percent thiorated is used mostly. For mig welding, use between one percent and two percent argon or combined oxygen and argon. Mostly, one percent oxygen is used.
When the metal pieces are the same, make use of a filler metal that has the same composition with the base metals so that the weld will have uniform properties. Consider the mechanical characteristics, probability of cracking and compatibility when choosing filler metal with different applications of the 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 any of the following processes; Stick electrode welding process by which there is an electric arc between a base metal and metal electrode which generates heat that is needed in the bonding process. It is an inexpensive and efficient process due to slang coating and stub loss. Tig welding process is performed easily on various metals. The electric arc that generates heat is between the base metal and tungsten electrode. If necessary, a filler metal is added. The arc is shielded by an inert gas.
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.
If your method of welding requires shielding, determine which gas to use. The Shield electrode does not require a shielding gas. For the tig process, shield with argon if the metal thickness is approximately half. Use argon helium mixture or just helium if the metal is thicker. Employ helium for deeper penetration. Two percent thiorated is used mostly. For mig welding, use between one percent and two percent argon or combined oxygen and argon. Mostly, one percent oxygen is used.
When the metal pieces are the same, make use of a filler metal that has the same composition with the base metals so that the weld will have uniform properties. Consider the mechanical characteristics, probability of cracking and compatibility when choosing filler metal with different applications of the 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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