【Daily Question】2015.12.18 Heat patterns in manual welding (2 wealth points for a reply; +3–8 additional wealth points if the answer is correct)

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This post was last edited by FORREST_GUMP on 2015-12-21 at 20:26. The Mechanical Forum has introduced the \"Question of the Day\" feature, which not only helps to foster an active atmosphere for technical discussions and guide the direction of such exchanges but also provides users with financial rewards, enabling them to experience various cool features. Multiple-choice question: In manual arc welding, the melting of metal is achieved through the (B) generated between the electrode and the workpiece. A. Electroslag heat B. Arc heat C. Chemical heat D. Resistive heat. Note: We will close this thread after 24 hours, and at that time we will announce the best response (the best answer), along with the answers and explanations. The competition for \"Active Experts and Weekly Stars\" in the Machinery section has begun: http://bbs.hcbbs.com/thread-1489069-1-1.html. A comprehensive guide to preventing equipment from freezing over winter: http://bbs.hcbbs.com/thread-1502793-1-1.html