The experiment research on diamond string bead wire for cutting the seabed oil pipelines

Seabed oil pipelines are kinds of complex material. During the maintenance and repair of Seabed oil pipelines which need cut off when they are breakage, and it is very difficult to complete the task with common underwater cutting ways. For cutting complex material and materials which have irregular form with diamond wire saw is a perfect technique. The paper gives an introduction of constitution and principle of operation about diamond bead wire saw. The experiments of the diamond wire saw for cutting the seabed oil pipelines have finished. We have got all of the information and relation about the technical parameters which contain feed rate override and cutting force, cutting force and cutting speed, the wear rate of diamond bead wire and the feed rate override, the wear rate of diamond bead wire and the cutting speed through analysis and treat experiment records, and create a mathematic mode of cutting force with regression orthogonal experiment. The conclusion that application the diamond wire saw for cutting the seabed oil pipelines is practical and beneficial ways especially in underwater circumstance and special construct condition of seabed oil pipelines.