Research and simulation of the machining process of difficult-to-cut materials

Abstract

Heat-resistant and high-alloy steels and alloys are difficult materials to machine. Optimizing the cutting parameters for such materials is a complex and multi-factorial technological process planning task. The paper describes the method of analysis of loading, thermodynamic and stress-strain state of a workpiece while cutting of typical representative of hard-to-cut materials (chromium-nickel alloy IN718) using finite element simulation. Influence of feed rate on cutting force and temperature in the zone of chip formation is given. The paper also analyzes the effect of cutting edge geometry on the thermal and stress state of the workpiece during cutting. Based on the conclusions about the simulation results, an analogy can be made with the processing of such materials. This will significantly reduce the time of technological preparation and decrease the cost of experimental studies.

Development of the structure and methodological support of the system for analysis of the details shaping using the technological inheritability of their quality parameters

“…The use of an automated system for part forming analysis (CAF-system -Computer Aided Forming) [19], [20], [38] is an implementation of the PLM concept in mechanical engineering based on the principle of parallel engineering applying the principle of the functionally-oriented technological processes planning (see Figure 3).…”

“…The work of the CAF-system is determined by the analysis of the rheological simulation model of individual technological steps and a complex of functional modules and analytical applications for the formation of precision, thermal deformation, micro geometric and structural-phase parameters of the processed surfaces [38], [39]. The algorithm for developing a rational structure of the product manufacturing process for forecasting its operating characteristics is implemented based on the predictive capabilities of the CAF system [20], [40].…”