针对铝合金车体焊后变形问题,介绍了常用火焰矫形技术的原理及历史发展,列举了铝合金火焰矫形的实际应用及工艺参数规范,并简述了火焰矫形工艺参数对材料性能的影响规律。最后指出铝合金火焰矫形后的残余应力和材料性能以及自动矫形设备的研制是其未来的发展方向。 Aiming at the problem of deformation after welding of aluminum alloy body, the principle and historical development of common flame orthopedic technique are introduced. The practical application of aluminum alloy flame orthopedics and the specification of process parameters are listed. The influence laws of flame orthopedic process parameters on material properties . Finally, it is pointed out that the residual stress and material properties of the aluminum alloy after flame orthopedic and the development of automatic orthopedic equipment are the future development directions.