60
Q. Liu et al.
serious tool wear. The main factors affecting tool life are cutting force and cutting
temperature because cutting force during the micro milling process of Ti6Al4V will
lead to higher cutting temperature, especially in high-speed cutting process. Failing
to set the cutting parameters properly may cause the cutting force and cutting temperature to increase sharply, resulting in reduced tool life. ABAQUS cutting simulation
is one of the effective means to predict and simulate the cutting characteristics of
Ti6Al4V before machining [4, 5].
In recent years, many scientists have done a lot of research on the establishment
of tool model and the influence of tool wear on machining characteristics. Professor
Zhao Jun [2] established an accurate model of milling cutter by determining the
cutting edge line and spiral groove end section, which provided a theoretical basis
for the design of milling cutter. According to its invariance, Professor Sun Xiuyuan
[3] uses the natural axis coordinate system to model the attitude of the grinding wheel,
and obtains a general normal vector equation of the grinding wheel end face and the
central coordinate equation of the grinding wheel end face. Arisoy YM based on the
three-dimensional finite element simulation, the induced microstructure of Ti-6Al4 V alloy is predicted, and the simulation results are obtained [4]. Wang [5] studied
the changes of grain size and microhardness in the process of chip formation and
surface formation in Ti-6Al-4 V high speed cutting, and made in-depth theoretical
research. Rahman [6, 7] believes that small CNC machine tools have high accuracy conditions and can improve the accuracy of micro cutting. When mamedov, a
is micro cutting, the tool stability is high. This machining method can effectively
improve the machining accuracy and surface quality. They have established a threedimensional analytical cutting force model for micro end milling operation. This
model has guiding significance for processing and production [8–10]. Wu et al. [11]
researched the burr formation mechanism in micro cutting. Jing et al. [12] researched
the modelling and experimental analysis of the effects of run out, minimum chip
thickness and elastic recovery on the cutting force in micro-end-milling. They have
practical guiding significance for the research of cutting mechanism and chip forming
in micro cutting, both in simulation and practical application.
In order to study the cutting simulation accuracy of Ti6Al4V, based on other
research scholars, this paper makes a tool model to make the simulation tool structure consistent with the actual tool structure, and uses the Abaqus simulation software, numerical control processing equipment and measuring equipment to carry
out simulation and experimental research on high speed micro-cutting of Ti6Al4V.
According to the simulation and experimental data, cutting force and cutting temperature were compared and analyzed to further verify the validity and reliability of the
simulation, and examine the influence of cutting parameters on cutting force and
cutting temperature in the simulation.
Q. Liu et al.
serious tool wear. The main factors affecting tool life are cutting force and cutting
temperature because cutting force during the micro milling process of Ti6Al4V will
lead to higher cutting temperature, especially in high-speed cutting process. Failing
to set the cutting parameters properly may cause the cutting force and cutting temperature to increase sharply, resulting in reduced tool life. ABAQUS cutting simulation
is one of the effective means to predict and simulate the cutting characteristics of
Ti6Al4V before machining [4, 5].
In recent years, many scientists have done a lot of research on the establishment
of tool model and the influence of tool wear on machining characteristics. Professor
Zhao Jun [2] established an accurate model of milling cutter by determining the
cutting edge line and spiral groove end section, which provided a theoretical basis
for the design of milling cutter. According to its invariance, Professor Sun Xiuyuan
[3] uses the natural axis coordinate system to model the attitude of the grinding wheel,
and obtains a general normal vector equation of the grinding wheel end face and the
central coordinate equation of the grinding wheel end face. Arisoy YM based on the
three-dimensional finite element simulation, the induced microstructure of Ti-6Al4 V alloy is predicted, and the simulation results are obtained [4]. Wang [5] studied
the changes of grain size and microhardness in the process of chip formation and
surface formation in Ti-6Al-4 V high speed cutting, and made in-depth theoretical
research. Rahman [6, 7] believes that small CNC machine tools have high accuracy conditions and can improve the accuracy of micro cutting. When mamedov, a
is micro cutting, the tool stability is high. This machining method can effectively
improve the machining accuracy and surface quality. They have established a threedimensional analytical cutting force model for micro end milling operation. This
model has guiding significance for processing and production [8–10]. Wu et al. [11]
researched the burr formation mechanism in micro cutting. Jing et al. [12] researched
the modelling and experimental analysis of the effects of run out, minimum chip
thickness and elastic recovery on the cutting force in micro-end-milling. They have
practical guiding significance for the research of cutting mechanism and chip forming
in micro cutting, both in simulation and practical application.
In order to study the cutting simulation accuracy of Ti6Al4V, based on other
research scholars, this paper makes a tool model to make the simulation tool structure consistent with the actual tool structure, and uses the Abaqus simulation software, numerical control processing equipment and measuring equipment to carry
out simulation and experimental research on high speed micro-cutting of Ti6Al4V.
According to the simulation and experimental data, cutting force and cutting temperature were compared and analyzed to further verify the validity and reliability of the
simulation, and examine the influence of cutting parameters on cutting force and
cutting temperature in the simulation.