As an important product of propulsion system,the mesh filter has multi-layer porous structure and the welding layer structure has mutations,which causes problems such as difficulty of controlling discharge during resistance seam welding,easy deformation and damage of the filter,and difficulty of guaranteeing the quality of the weld.By taking measures such as filter pretreatment,roller electrode design and production,clamping tool design and production,selecting reasonable welding process parameters,and conducting appearance detection,tear test and bubble point detection of resistance welds,the final welding pass rate is obviously improved,and the welding target is reached.
mesh filterfilter elementresistance seam weldingbubble point
NETL
NSTL
万方数据
维普
