Welding of thin stainless steel
Are you interested in welding thin-gauge stainless steels from the supplier AvecGlob? Here you will find the necessary information on this topic.
Features of welding
When welding thin-gauge stainless steel, the main goal is to avoid deformation, burn-out and excessively heated zones while at the same time ensuring the welding with sufficient mechanical strength for subsequent application. Welding processes that provide the greatest control over heat are short arc welding, pulse MIG, TIG and pulse TIG processes.
Electrode and shielding gas selection
It is recommended to use a welding wire with the smallest possible diameter. A smaller wire consumes less heat to melt the workpiece, which, in addition, is less heated. Simultaneously, it improves behind the welded seam and there is the possibility of correcting the defects, since the productivity of the process will be relatively low. The recommended wire material is aluminum.
As the protective gas, either pure argon or a mixture of argon with carbon dioxide in a ratio of 75% argon and 25% in CO 2 is used. A more expensive and less commonly used option is a three-component protective gas, where 6… 8% helium is injected. With an increase in the amount of argon in the mixture, the risk of splashing liquid metal from the bath with the melt is reduced.
In no case should you weld thin-sheet metal of stainless steel with cored wire.
Supplier — AvekGlob Company — offers to purchase assortment of welded constructions made of different grades of stainless steels. Products can be bought at a price formed on the basis of European and world standards. Implementation is possible in bulk and retail, for regular customers, a flexible system of discounts operates.
The polarity of the electrodes and their appearance
For welding with solid wires, both the forward and reverse polarity of the current is used. In the latter case, the amount of heat introduced into the welding zone is higher, which increases the productivity of the process.
Electrode selection and preparation
When welding sheet metal from stainless steel it is necessary to use an electrode wire of the minimum possible diameter. Thinner electrodes carry less heat and allow better focusing of the arc in a smaller area. Tungsten electrodes must be pointed and polished parallel to the length.
Welding technique
The welding arc is directed to the center of the bath with the melt. For greater penetration the discharge is always excited from one side of the bath. To prevent burnout and deformation of sheet metal, the arc torch must have the smallest cross-sectional area, thus avoiding overheating. The movement of the electrode must be rapid, and made in a straight line.
Supplier — AvekGlob Company — offers different types of rolled and welded constructions of stainless steel of domestic and foreign production. The products are offered at affordable prices from the manufacturer. The supplier guarantees the timely delivery of products to any address specified by the consumer.