By Blodgett O.
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Additional info for Design of Weldments, Part A
_ C1ean 5. 6. Clamp into position and hold duringwelding. rts with proDe r ^.. and to mainrain rr-up aligrment Auring welding. 7. 8. Prebend th'emembertooffsetanyexpe cted distort ionl=9. Weld two slmilar members back_to_back with some prebend. 0. :re1ief, weld two similar members back-to-back without prebend anO keep fastened until after stress-ielief. ,il end up srrajght. ,,. 11. re strongbaeks. 12. ' in 13. Use subassemblies and complete the welding final assembly. ea_q\ befo-re 1,1. Where possible, break the weldment into natural sections, so the welding of each can be balanced about its own neutral axis.
Iog urrE'v"fai ^only the cost ing. Therefore, is low. 9olo for ten ze. lsssLq_Eegesie . An even more efficient desigt can be made by changing the shape of the base cross_section. How_ ever, this would require finding the momenf inertia_ of the proposed section. re ot fo, doing this is covered in a later "*ample. determined, . it can then be multiplieJ bt;;"d: valent rigidity factor. This factor is tire plrceniage of the rigidity of the cast material a trrit ot sieJl. This- percentage can be found on tle firsi-nomol graph (Fig.
How_ ever, this would require finding the momenf inertia_ of the proposed section. re ot fo, doing this is covered in a later "*ample. determined, . it can then be multiplieJ bt;;"d: valent rigidity factor. This factor is tire plrceniage of the rigidity of the cast material a trrit ot sieJl. This- percentage can be found on tle firsi-nomol graph (Fig. 8) by using the value ro, that is found when the cast section is "tJ-r""tiJn 1,, thick. : ::i-pil"t urt' Ar-L lvt zu gray cast iron, thepointat which Lin6 will be a reference poinr.