The research of backchipping can be basis of processes planning and technology parameters optimization. Meanwhile, it will be a theory foundation for the subsequent welding.
清根规律的研究，不仅能够为工艺制定和优化清根工艺参数提供依据，也为后续焊接过程做好基础理论准备。
2
The quality of backchipping is not only in relation to the quality of final welding seam, but also the schedule and cost of the whole project.
清根质量好坏不仅关系到焊缝的最终质量，同时还影响工程的进度和成本。
3
Therefore, the law of welding seam backchipping was studied based on the newly developed automatic backchipping machine with a disk-type non-consumable electrode.