Creating an algorithm for improving the working surfaces of tools, using computer modeling

The article presents evidence proving that the alloys of the CuZnAl system, unlike the CuAl (Ni, Mn) system, have a smaller contact area with the quenching disk. It is caused by the condensation of Zinc vapors from the melt on its quenching surface. In addition, it is shown that Bronze alloys, in comparison with Brasses, are preferable for obtaining tapes by spinning. The main patterns of changes in critical points and the value of the Shape Memory Effect (εSME), depending on the types of heat treatment are also analyzed in this paper. Exposure of the alloy to the mold setting temperature of T = 800÷850 °C is accompanied by grain growth, increase in critical points, and decrease in the value of Shape Memory Effect. In this regard, the holding time at the mold setting temperature should not exceed t = 3÷5 min.

Structure formation and functional properties of thin-gauge tapes made of copper-based alloys obtained by melt spinning

Letenkov

2020

Assessment results of the dependence of the processed surface quality on the applied tool material

Mokritsky

Sitamov

Arendatelev

et al. 2020

Prior studies of surface roughness generated by machining the cutting edge of the tool does not remove the need for additional studies under specific processing conditions, for example, turning a specialized corrosion resistant stainless steel grade 09H17N7U. There are no regulatory recommendations to ensure the necessary quality of detail in the roughness parameters for this steel (pre-existing are outdated). The scope of application of this steel is rapidly expanding due to its unique performance properties, physical and mechanical characteristics. The authors performed such a study in relation to turning with various tool materials.

Results of testing the rationality of tool materials using the experimental method and the method of simulation modeling

Mokritsky

Sitamov

Belyakov

et al. 2020

Growing requirements for physical and mechanical characteristics and operational properties lead to the development of ever new structural materials, the range of which is constantly expanding. This complicates the selection of rational tool materials required for machine processing, which requires considerable time. Currently, there are no regulatory recommendations for such work, so there is a need for a quick and less costly choice. Experimental studies, trial and error methods are not suitable for this. Therefore, it is necessary in a universal way, in the use of a model of the cutting process, which has not yet been developed due to the complexity of the simultaneously occurring processes. The absence of such a model of the cutting process can be temporarily replaced by computer simulation modeling. This work presents such modeling in the Deform software environment as applied to process turning of corrosion-resistant specialized stainless steel.