To investigate the residual stress distribution in the zirconium/titanium/steel tri-metal explosively welded composite plates after welding a cover plate and cutting with various methods, two specimens made of the composite plate were prepared. The flame cutting method and the abrasive waterjet cutting method were employed to cut the two edges of the specimens. And a cover plate of zirconium was welded to the cladding layer of one specimen with the gas tungsten arc welding method. The contour method was adopted to get the full map of residual stress distribution in the specimens. The stresses induced by the flame cutting and the abrasive waterjet cutting in the composite plate were distinguished and the interfacial stress distributions in the composite plate without and with welding a cover plate were investigated. The result shows that longitudinal tensile stress with a magnitude of about 200 MPa occurs in the titanium/steel interface of the composite plate after welding of zirconium cover plate, and the tensile stress on the steel side reaches the yield strength of steel. After welding the 60 mm-wide cover plate to the composite plate, the stress induced by the welding of one side of the cover plate has almost no effect on that induced by welding of the other side of the cover plate. The flame cutting method can induce large tensile stress in the steel base plate with a magnitude equal to the yield strength of steel and a width up to 22 mm. The water-jet cutting has relatively less influence on the stress at the cutting edge.

为了研究在焊接盖板并用各种方法切割后锆/钛/钢三金属爆炸焊接复合板上的残余应力分布，准备了两个由复合板制成的试样。采用火焰切割法和磨料水射流切割法切割试样的两个边缘。然后，通过气体钨极电弧焊接法将锆的盖板焊接在一个试样的包层上。采用轮廓法获得了试样中残余应力分布的完整图。区分了火焰切割和磨料水射流切割在复合板上引起的应力，并研究了复合板在不焊接盖板和焊接盖板的情况下的界​​面应力分布。结果表明，在锆盖板焊接后，复合板的钛/钢界面处产生了大约200 MPa的纵向拉应力，钢侧的拉应力达到了钢的屈服强度。在将60毫米宽的盖板焊接到复合板上之后，盖板的一侧焊接引起的应力几乎不会影响盖板另一侧焊接引起的应力。火焰切割方法会在钢板基板上产生较大的拉伸应力，其强度等于钢板的屈服强度，宽度最大为22 mm。水刀切割对切削刃处的应力影响相对较小。