A comparative study of corrosion property, tribological behavior and cutting performance of tool materials for the cutting of marine high-strength steels in the marine environment

Abstract

To select the optimum tool material for the cutting of marine high-strength steels using a hole-opening equipment in the marine environment, this article conducted a comparative study on the corrosion property, tribological behavior and cutting performance of cermet, cemented carbide and coated tools. The results reveal that the coated tool materials have good corrosion resistance with coating protection, and poor wear resistance with adhesive and corrosive wear in artificial seawater, and present moderate cutting performance. In addition, the cemented carbide tool materials show poor corrosion resistance and good wear resistance due to the lubrication effect of corrosion products in artificial seawater, but have bad cutting performance with a high flank wear value. Moreover, the cermet tool materials present acceptable corrosion and wear resistance with adhesive and corrosive wear in artificial seawater and have the excellent cutting performance. Taking into account the corrosion resistance, wear resistance and cutting performance of tool materials and regarding cutting performance as an important indicator, the cermet tool materials with superior comprehensive performances are suitable for the cutting of marine high-strength steels in the marine environment.

Wear performance of indexable coated inserts cutting 0Cr17Ni4Cu4Nb stainless steel

“…Many studies have been mainly focused on improving insert life using different coating layers. Coating layers mainly include aluminum oxide (Al 2 O 3 ), 9 titanium carbide (TiC), titanium carbo-nitride (TiCN), 10 titanium nitride (TiN), 11 and titanium aluminum nitride (TiAlN). 12 The insert life is correlated with the workpiece materials.…”

A Fuzzy Evaluation of Tool Materials in the Turning of Marine Steels

“…As is known, marine steels belong to high-strength steels, which are difficult to machine with high cutting temperature [4], difficulty in chip breaking [5], built-up edge [6], severe tool wear [7], etc. Meanwhile, for the tool used to cut the hull, the cutting process should meet the following requirements [8]: a small cutting force to make the cutting process smooth and reduce power consumption with lightweight rescue equipment, a low cutting temperature to avert a gas explosion inside the ship, small surface roughness of the hole to avoid hurting the rescued people and a long tool life to make the cutting process efficient and reliable without changing tools. However, there is little research into the machinability of marine steels.…”