The two piece welded together. One is 45 # steel, one is 40CR shaft, need to withstand greater impact. Which type of Submerged Arc welding wire should be used to do. If you do not Submerged Arc welding, MIG welding is not able to achieve higher strength.
This unit is the force on the front wheels of the car parts. Because of its small size. Welding using welding methods is not feasible. Welding methods currently used for Submerged Arc welding.
The 45 # steel and 40CR can use stainless steel welded wire it,
45 # tensile strength of about 500MPa. 40Cr strength of over 900. Force component is low with consumables on the line. Theoretically with 500MPa of consumables on the line. Just consider the tendency of large 40Cr hardened. Should be good with some plastic welding consumables (nickel-containing stainless steel welding consumables should all be considered).
As to whether the gas-welding can achieve higher strength. Depends on two points. First, there is no need for higher strength. The higher the intensity of weldability is worse. Second, the welding strength can be higher. But needs with appropriate consumables. This welding process and not so much. Submerged Arc welding welding can be.
