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14—1 举出三条焊接残余应力的有害影响。14—2 如图所示,在焊脚为7毫米的角焊时, 为使焊件能承受最大为15吨的拉伸载荷,焊缝有效长度需多少(许用剪应力
14-1 cites the adverse effects of three welding residual stresses. 14-2 As shown in the figure, for a fillet weld of 7 mm at the fillet, the effective length of the weld is required to allow the weldment to withstand a maximum tensile loading of 15 tonnes