No abstract

ELECTRIC arc welding of steel is now a thoroughly established industrial process and is already applied on a very large scale in repair work and in certain classes of manufacture. Abroad it is becoming extensively used instead of riveting as a means of joining the members of a steel structure, but in this country progress in that direction has not been so rapid. The process appears, however, to offer very great advantages in many instances and for certain purposes, and it is believed that the fabrication of structural steelwork by welding will soon become a familiar and widely-accepted alternative to riveting. In these circumstances it is becoming increasingly desirable that data upon which designs for welded structures can safely and economically be based should be made available to engineers.No very large number of structures has as yet been built in any country by welding, and although the literature of the subject contains many interesting records of tests of welded joints, most of the joints are of small dimensions, and few exhaustive series of tests on different types of large-scale specimen joints appear to have been made, such as would justify the derivation of comprehensive rules for the design of welded work.In connection with welded joints the relative elastic and other physical propert.ies of the metal joined and the weld-metal deposited greatly affect the distribution of stress, and therefore the strength of the joint; and consequently figures based on tests made with a particular brand of electrode on a particular grade of steel do not, Downloaded by [ University of Sussex] on [12/09/16].

No abstract