CAJ | 학술논문

针对汽车门框焊后出现的易变形、易焊透的缺陷，设计了一套汽车门框专用焊接夹具。该夹具具有定位准确和定位夹紧迅速可靠、操作方便等特点，利用该套焊接夹具进行0.7 mm镀锌板TIG焊接试验，焊后进行了试样的金相组织测试、显微硬度试验和拉伸试验。试验结果分析表明：利用该夹具，在采用合理焊接工艺的基础上，克服了汽车门框式结构件焊后易变形的缺陷，焊件能够满足使用性能要求。
침대기차문광한후출현적역변형、역한투적결함，설계료일투기차문광전용한접협구。해협구구유정위준학화정위협긴신속가고、조작방편등특점，이용해투한접협구진행0.7 mm도자판TIG한접시험，한후진행료시양적금상조직측시、현미경도시험화랍신시험。시험결과분석표명：이용해협구，재채용합리한접공예적기출상，극복료기차문광식결구건한후역변형적결함，한건능구만족사용성능요구。
For the welding of sheet metal causes the defects of easy deformation and easy penetration,a dedica-ted welding fixture is designed.The fixture applies to motorcar door framework.There are some features,such as accurate location,quick and reliable clamping,convenient operation.With the welding fixture,the TIG welding test of 0.7 mm plate is done,then,tests about micro structure,micro hardness,and tensile are done after welding.The results show that on the basis of a reasonable welding process,this fixture can meet require-ments of welding motorcar door framework structure.