Please try to answer 4 Thank you In Stick Electrode Welding

Please try to answer # 4 Thank you!

In Stick Electrode Welding: what are the two most important flux attributes that enable it to protect the weld puddle from oxidation? Explain how spray transfer can be achieved, while avoiding the formation of such defects as bridges and tunnels; explain how a high traverse velocity of the electrode may lead to weld head centerline weakness and possibly cracking: why is deep penetration to be avoided when welding a high carbon steel? Why are residual thermal stresses more frequent when welding high alloy steels?

Solution

As you want answer 4 so because welding heat should be adjust to provide good fusion at the side walls and root of the joint without excessive Penetration\'s