The hot cracking susceptibility of high strength aluminum alloy LY12CZ during welding with different restraint was investigated in a vari-restraint clamp designed by ourselves.

• 采用一种简便有效的热裂纹试验方法，在自行研制的变拘束度夹具上，研究了不同拘束条件下高强铝合金LY12CZ焊接时的热裂纹倾向。