Cutting tool coatings improve the friction and wear properties of cutting tools, which is why they are essential in cutting operations. For many years, surface processing technology providers have been developing customized coating solutions to improve cutting tool wear resistance, machining efficiency and service life. The unique challenge comes from the attention and optimization of four elements: (i) pre- and post-coating processing of cutting tool surfaces; (ii) coating materials; (iii) coating structures; and (iv) integrated processing technology for coated cutting tools.
Cutting tool wear sources
During the cutting process, some wear mechanisms occur in the contact zone between the cutting tool and the workpiece material. For example, bonded wear between the chip and the cutting surface, abrasive wear of the tool by hard points in the workpiece material, and wear caused by frictional chemical reactions (chemical reactions of the material caused by mechanical action and high temperatures). Since these frictional stresses reduce the cutting force of the cutting tool and shorten the tool life, they mainly affect the machining efficiency of the cutting tool.
The surface coating reduces the effect of friction, while the cutting tool base material supports the coating and absorbs mechanical stress. The improved performance of the friction system can save material and reduce energy consumption in addition to increasing productivity.
The role of coating in reducing processing costs
Cutting tool life is an important cost factor in the production cycle. Among other things, cutting tool life can be defined as the time of a machine can be machined without interruption before maintenance is required. The longer the cutting tool life, the lower the costs due to production interruptions and the less maintenance work the machine has to do.
–This article is released by vacuum coating machine manufacturer Guangdong Zhenhua
Post time: Feb-29-2024