downhand

(非标准术语“平焊”表示什麽意思？

What does the nonstandard term “downhand” mean ?

The concept of motion planning for welding positioner is discussed, and the mathematical model of rotating/tilting positioner under the downhand welding position is created.

焊运动规划的任务进行了分解,建立了旋转倾斜型焊使待焊点处于最佳焊置时的数学模型,并编制了求解程,间螺旋线型焊缝进行了模拟。