Improving carbide cutting tool performance through coating

Hard-to-process specialized stainless steel grade 09Kh17N7Yu has become widely used in various fields of mechanical engineering due to its unique performance properties. The existing recommendations for its processing are outdated and do not meet modern requirements for the performance of metal-cutting tools. This necessitated the need to develop recommendations for modern high-performance machine tools. The paper presents methods of solving this problem based on the example of turning by typical domestic replaceable hard-alloyed cutting plates. Relationships between the tool wear and the operating time were obtained. Design solutions for tool materials to be used under specified operating conditions were developed. A significant outcome of the paper was the use of simulation modeling in the Deform software environment, which allowed the authors to develop new coatings for the hard alloy VK8, which provided a significant (up to 3 times) increase in tool life. Using modelling, it was also possible to design new tool materials for new or expected operating conditions. The following main criteria sufficient for modeling were identified: tool wear, temperature in the cutting zone, stresses in the tool material and deformation of the tool material. The results obtained can be used as the basis for the so-called data bank, which can be used in production enterprises.

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Tool Materials for Turning Specialized Stainless Steels

Mokritskiy¹,

Sitamov²

2021

PoHEI.MB

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The article considers the issues of increasing the tool durability when turning specialized hard-to-work corrosion-resistant stainless steels 09Kh17N7Yu, 12Kh18N10T and 13Kh15N5AM3 with standard replaceable carbide tip. To develop recommendations for reducing tool consumption, a number of experimental and simulation studies was performed. The simulation was performed in the Deform software for three parameters: temperature, stress, and strain. The simulation results are compared with the operational parameters (wear of the tool material). Simulation was performed for ten different coatings on a hard-alloy substrate of the VK8 brand. The tool hard alloy VK8 is used as the base tool material, the other tool materials differ in the architecture (design, composition, structure and coating method) of the coatings applied to the VK8 substrate. The techniques of selecting the most rational tool materials are developed. The results obtained by simulation are verified experimentally. A good agreement between the results of simulation and experimental research has been achieved.

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Improving carbide cutting tool performance through coating

Cited by 4 publications

References 0 publications

Simulation Modeling of the Choice of Metal Cutting Tool Coating

Simulation Modeling of the Choice of Metal Cutting Tool Coating

Tool Materials for Turning Machine-Building Stainless Steel 09Kh17N7Yu

Tool Materials for Turning Specialized Stainless Steels

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