3Andrews D.R.,Broomhead J..Quality Assurance for resistance spot welding[J].Welding Journal,1975(49):460-466.
4Roland S.,Timsit.Electrical Contact Resistance:Properties of Stationary Interfaces[J].IEEE Transctions on components and packaging technology,1999,22(5):85-98.
5Holm R..Electric contacts:theory and application[C].New York:4th ed.Springer,1967.
6Roberts W.L.Resistance variations during spot welding[J].Welding Journal,1951(30):1004-1019.
7Savage W.F.,Nippes E.F.,Wassell F.A..Dynamic contact resistance of series spot welds[J].Welding Journal,1978(57):43-50.
8Zhang H..Expulsion and its influence on weld quality[J].Welding Journal,1999(78):373-380.
9Gedeon S A.Resistance spot welding of galvanised steel[D].Cambridge:MSC Thesis,MA,1984.
10Thornton P.H.,Krause A.R.,Davis R.G..Contact Resistance in spot welding[J].Welding Journal,1996(75):402-412.