Global Journal of Research In Engineering, Dec 23, 2011
In this paper the principal objective is to find the deflection of orthotropic box cam profile co... more In this paper the principal objective is to find the deflection of orthotropic box cam profile countered by segments of circular-arc due to the effect of contact loading which produce the generate force that induces high contact stress on the cam-surface especially in high-speed machine. In highspeed it can be used the composite cam, since it affects the whole machine performance to improve the wear resistance. Several researchers investigated the effects of cam profile in accuracy and system flexibility on the output motion experimentally; but there is a lake in the theoretical part. The theoretical part has been done with the solution of orthotropic circular plate equation using the harmonic deflection motion of the follower. The cam used in this paper can be seen in composite shifter cam for a motorcycle transmission, composite hollow cam-shafts, the running valve lift with roller followers of a composite camshaft, and heavy duty of marine engine. The aim of the present paper is to find the maximum deflection of orthotropic box cam on the boundaries of the three circular-arc contact profiles for flanks and noses of contact follower loadings. The results were arrangement into theoretical part and finite element using software ANSYS 12.1.
In this paper the principal objective is to find the deflection of orthotropic box cam profile co... more In this paper the principal objective is to find the deflection of orthotropic box cam profile countered by segments of circular-arc due to the effect of contact loading which produce the generate force that induces high contact stress on the cam-surface especially in high-speed machine. In highspeed it can be used the composite cam, since it affects the whole machine performance to improve the wear resistance. Several researchers investigated the effects of cam profile in accuracy and system flexibility on the output motion experimentally; but there is a lake in the theoretical part. The theoretical part has been done with the solution of orthotropic circular plate equation using the harmonic deflection motion of the follower. The cam used in this paper can be seen in composite shifter cam for a motorcycle transmission, composite hollow cam-shafts, the running valve lift with roller followers of a composite camshaft, and heavy duty of marine engine. The aim of the present paper is ...
Global Journal of Research In Engineering, Dec 23, 2011
In this research the aerodynamic load have been determined in critical transonic speeds taking in... more In this research the aerodynamic load have been determined in critical transonic speeds taking into consideration the shock wave effect along X-29 aircraft wing , first by using computational fluid dynamics in fluent program, then taking these results as an applied loads in the classical plate theory (c.p.t) to estimate these stresses depending on time and speeds of impact load as a major parameter, and a numerical method using F.E.M (Ansys 10 ) for confirming the results that obtained from analytical solution. Results shows that the value of pressure coefficient along the wing using (c.p.t) is higher then the experimental one which is more save in design for transonic flow and its appeared that the position of maximum effect of shock wave on wing section depends on angle of attack , sweep angle and duration time of the shock wave load .
IOP Conference Series: Materials Science and Engineering, 2020
Many researches have been done to obtain the factors that affect the value of the natural frequen... more Many researches have been done to obtain the factors that affect the value of the natural frequency for composite shell. The free vibration of composite spherical shell cap under impact loading is investigated in this study. The analysis is carried out theoretically using the higher-order shear deformation theory for composite spherical shell under impact loading, the results obtained was compared with numerical analysis using APDL program in the ANSYS software and experimentally using the hummer impact testing system and sigview program. The effects of radius of curvature, Thickness and boundary conditions (built in, quarter built in (arc), simply supported) on the basic frequency of orthotropic composite spherical shell cap have been investigated. The results show the dynamic characteristic it must be seen the rate of decreasing or increasing in the natural frequency of the composite material to take into consideration the effect of duration of impact loading on the dynamic properties of spherical composite shell. Selective composite material and its composition are 50% (0-90) woven fiber glass and 50% polyester resin.
Periodicals of Engineering and Natural Sciences (PEN), 2022
GLARE (glass-reinforced fibre-metal laminate) is aluminum-based material of fiber metal laminate ... more GLARE (glass-reinforced fibre-metal laminate) is aluminum-based material of fiber metal laminate (henceforth FML) that is often fabricated by expensive autoclave procedure. In this study, the process of Injected Molding or (also known as VARTM was employed as a cost-effective alternative to produce GLARE. Several aluminum surface preparation procedures are applied to improve the interlaminar shear strength. A T3 temper 2024 aluminum alloy with 1*1 plain fabricated glass fabric were used to make GLARE composites. GLARE consists of two aluminum sheet as external layer and glass fabric as internal layers. Four sets of aluminum sheets were prepared, one unanodized and three others anodized. Three different anodizing procedures (constant voltage mode, increasing voltage mode and decreasing voltage mode) have been adopted in this research. Two types of curing treatments were applied on VARTM fabricated specimens. According to ASTM D1876 T-peel test standard, the sets of prepared specimens have been tested to examine the adhesive bonding strength and fracture toughness of mode-I. The obtained results which include forcedisplacement curves, peak loads and fracture toughness were showed that a significant improvement for anodized specimens with all voltage modes. The first curing treatment offered better results than second curing treatment. The best improvement was obtained from anodized specimen with decreasing voltage mode cured by the first treatment which reaches to six times the results obtained from unanodized specimen. The delamination behavior for this specimen was verified numerically.
In this work, the stresses and dynamic crack growth were studied and analyzed in thin flat plate ... more In this work, the stresses and dynamic crack growth were studied and analyzed in thin flat plate with a surface crack at the center, subjected to cycling low velocity impact loading for two types of aluminum plates (2024, 6061). Analytical solution using classical plate theory by using Levy solution employed to determine stresses induced in plate due to the impact load. The impact load applied at the center of surface plate, was calculated by Hertzian contact law. Stresses with respect to time at the crack tip and the velocity of crack growth were calculated through elastic plastic fracture mechanics equations. The size of plastic zone around the crack tip which caused by impact loading was found by Dugdal's model theory. Numerical analysis using program (ANSYS11-APDL) based on finite element method used to analysis the stresses with respect to time at crack tip and then find the velocity of the crack growth under cycling impact loading. The results show that the stresses increa...
An Optimum Design of Cam Mechanisms with Roller Follower for Combined Effect of Impact and High Contact Loads
The problem in the design of a cam is the analyzing of the mechanisms and dynamic forces that eff... more The problem in the design of a cam is the analyzing of the mechanisms and dynamic forces that effect on the family of parametric polynomials for describing the motion curve. In present method, two ways have been taken for optimization of the cam size, first the high dynamic loading (such that impact and elastic stress waves propagation) from marine machine tool which translate by the roller follower to the cam surface and varies with time causes large contact loads and second it must include the factors of kinematics features including the acceleration, velocity, boundary condition and the unsymmetrical curvature of the cam profile for the motion curve. In the theoretical solution the unidirectional impact stress waves with the Mushkelishvilis inverse of the singular integral equation for contact stress have been used for analytical solution and a numerical solution have bean solved using F.E.M (ANSYS 10) for stress analysis in a cam surface at condition of rise-dwell-return (R-D-R)...
Journal of Engineering and Sustainable Development, 2018
Experimental study of transient response for different load ratio (0.3, 0.4, 0.5, and 1.0)wt% of ... more Experimental study of transient response for different load ratio (0.3, 0.4, 0.5, and 1.0)wt% of Multi-Walled Carbon Nano-Tubes (MWCNTs) reinforced matrix of composite in addition to woven carbon fiber. Thermal Low Velocity Impact (TLVI) apparatus have been designed to meet the different testing conditions. The effect of transient vibration by impact loading on simply supported curved composite shell with and without thermal condition has been studied experimentally. An improvement occurred in settling time about 62.0% at increased of weight ratio reinforcement up to 1.0wt% of MWCNTs, and under thermal condition the settling time reduced about 44.0%. The results showed that the material which be selected under thermal condition must be include the weighed ratio 0.4wt% because all the specimens reinforced with the mentioned weighted ratios of MWCNTs failed under thermal test except those that containing 0.4wt% and these results enhanced by other results such as the Differential Scanning Calorimetry (DSC). In addition to the passivity of the composite shell structure due to reinforcement by woven carbon fiber and MWCNTs, active double integral of sliding mode controller (SMC) is used with piezoelectric components. The results indicated that an important improvement in transient response at maximum over shoot of the middle surface point about (95.8%) and (50%) in settling time, with SMC the specimens reach the steady state at short time.
Many works have been carried out to determine expressions for critical loads of crack propagation... more Many works have been carried out to determine expressions for critical loads of crack propagation in flat plates under eleme cases of shear, compression, bending and combination of theme. In this new solution, the analytical work must take into consideration the effect of fluctuating the buckling load for panels under various types of bending and shear loadi resea with for co the str
In this work, the stresses and dynamic crack growth were studied and analyzed in thin flat plate ... more In this work, the stresses and dynamic crack growth were studied and analyzed in thin flat plate with a surface crack at the center, subjected to cycling low velocity impact loading for two types of aluminum plates (2024, 6061). Three main methods have been used in this study; first, analytical solution using classical plate theory by using Levy solution to determine stresses induced in plate due to the impact load. The impact load applied at the center of surface plate, was calculated by Hertzian contact law. The principal stresses with respect to time at the crack tip and the velocity of crack growth were calculated through elastic plastic fracture mechanics equations, because the impact loading will cause plastic zone around the crack tip and by Dugdal’s model theory is found the size of this zone. Second, numerical analysis using program (ANSYS11-APDL) based on finite element method used to analyze and calculate the stresses and strains with respect to time at crack tip and then...
Fibers, metal and resin were made up together using mold and compression method. Hand layup w... more Fibers, metal and resin were made up together using mold and compression method. Hand layup was used and Taguchi method for obtaining the optimum parameter. The workpiece with most significant parameters is FG-Al with polyester resin. The best Ra after milling is for FG-Al, CFAl with polyester resin. Recently, composite materials were widely used in different applications due to their lightweight, and good thermal and mechanical properties. In this study, an attempt to manufacture laminate composites by hand layup was performed. Also, optimal parameters for the best surface roughness were investigated. Therefore, three parameters had been examined; spindle speed, feed rate, and depth of cut. The L9 Taguchi orthogonal array, signal to noise (S/N) ratio, and analysis of variance (ANOVA) were selected to determine the optimum parameters. To create composites, the compression method was employed. Four different types of composites were manufactured with 2.8 mm thickness, to dete...
In the present research a new test rig has been proposed to be suitable for different cyclic load... more In the present research a new test rig has been proposed to be suitable for different cyclic loads such as cyclic bending, cyclic torsion, proportional and non proportional loads. In this work the efforts were concentrated on the cyclic bending loads concerning cracked pipes with or without internal pulsing pressure to study crack propagation in small bore pipes (up to 1'') for transverse or inclined cracks. The rig simulates the real service conditions under different stresses by means the least dangerous case will be suggested, so the experiments were considered for copper pipe, and the results have been tabulated and drawn to demonstrate the crack growth behavior as well as to justify the outcomes practically, consequently the durability of this new rig has been confirmed with new concluded facts.
Dynamic Crack Propagation in Thin Plates Under Cycling Thermal Stresses Effect with Cycling Impact Loading
ABSTRACT: This paper presents the dynamic propagation method of crack growth in structures subjec... more ABSTRACT: This paper presents the dynamic propagation method of crack growth in structures subject to cycling thermal stresses with cycling effect loading for two types of aluminum plate (7075, 6061) with aspect ratio (1, 2) and plate boundary condition (SFSF). Using numerical research and experimental study, crack lengths taken (3, 5) mm and crack angles (0, 90). Numerical analysis using program (ANSYS-18 APDL) based on finite element method, the purpose of numerical analysis to obtain displacements from mechanical and thermal stresses regarding time at crack tip in thin aluminum plate, then calculate dynamic crack propagation through displacements under effect of the mechanical stress and thermal stress. Practically, a rig was designed and produced to use a high-resolution camera connected to the device to apply cycling effect loading on the center cracked plates under varying temperature and measure the dynamic crack propagation. Results showed that the dynamic crack propagation ...
This study aims to model the flank wear prediction equation in metal cutting, depending on the wo... more This study aims to model the flank wear prediction equation in metal cutting, depending on the workpiece material properties and almost cutting conditions. A new method of energy transferred solution between the cutting tool and workpiece was introduced through the flow stress of chip formation by using the Johnson-Cook model. To investigate this model, an orthogonal cutting test coupled with finite element analysis was carried out to solve this model and finding a wear coefficient of cutting 6061-T6 aluminum and the given carbide tool.
In this paper, a quick stop device technique and the streamline model were employed to study the ... more In this paper, a quick stop device technique and the streamline model were employed to study the chip formation in metal cutting. The behavior of chip deformation at the primary shear zone was described by this model. Orthogonal test of turning process over a workpiece of the 6061-T6 aluminum alloy at different cutting speeds was carried out. The results of the equivalent strain rate and cumulative plastic strain were used to describe the complexity of chip formation. Finite element analysis by ABAQUS/explicit package was also employed to verify the streamline model. Some behavior of formation and strain rate distribution differs from the experimental results, but the overall trend and maximum results are approximately close. In addition, the quick stop device technique is described in detail. Which could be used in other kinds of studies, such as the metallurgical observation.
Global Journal of Research In Engineering, Dec 23, 2011
In this paper the principal objective is to find the deflection of orthotropic box cam profile co... more In this paper the principal objective is to find the deflection of orthotropic box cam profile countered by segments of circular-arc due to the effect of contact loading which produce the generate force that induces high contact stress on the cam-surface especially in high-speed machine. In highspeed it can be used the composite cam, since it affects the whole machine performance to improve the wear resistance. Several researchers investigated the effects of cam profile in accuracy and system flexibility on the output motion experimentally; but there is a lake in the theoretical part. The theoretical part has been done with the solution of orthotropic circular plate equation using the harmonic deflection motion of the follower. The cam used in this paper can be seen in composite shifter cam for a motorcycle transmission, composite hollow cam-shafts, the running valve lift with roller followers of a composite camshaft, and heavy duty of marine engine. The aim of the present paper is to find the maximum deflection of orthotropic box cam on the boundaries of the three circular-arc contact profiles for flanks and noses of contact follower loadings. The results were arrangement into theoretical part and finite element using software ANSYS 12.1.
In this paper the principal objective is to find the deflection of orthotropic box cam profile co... more In this paper the principal objective is to find the deflection of orthotropic box cam profile countered by segments of circular-arc due to the effect of contact loading which produce the generate force that induces high contact stress on the cam-surface especially in high-speed machine. In highspeed it can be used the composite cam, since it affects the whole machine performance to improve the wear resistance. Several researchers investigated the effects of cam profile in accuracy and system flexibility on the output motion experimentally; but there is a lake in the theoretical part. The theoretical part has been done with the solution of orthotropic circular plate equation using the harmonic deflection motion of the follower. The cam used in this paper can be seen in composite shifter cam for a motorcycle transmission, composite hollow cam-shafts, the running valve lift with roller followers of a composite camshaft, and heavy duty of marine engine. The aim of the present paper is ...
Global Journal of Research In Engineering, Dec 23, 2011
In this research the aerodynamic load have been determined in critical transonic speeds taking in... more In this research the aerodynamic load have been determined in critical transonic speeds taking into consideration the shock wave effect along X-29 aircraft wing , first by using computational fluid dynamics in fluent program, then taking these results as an applied loads in the classical plate theory (c.p.t) to estimate these stresses depending on time and speeds of impact load as a major parameter, and a numerical method using F.E.M (Ansys 10 ) for confirming the results that obtained from analytical solution. Results shows that the value of pressure coefficient along the wing using (c.p.t) is higher then the experimental one which is more save in design for transonic flow and its appeared that the position of maximum effect of shock wave on wing section depends on angle of attack , sweep angle and duration time of the shock wave load .
IOP Conference Series: Materials Science and Engineering, 2020
Many researches have been done to obtain the factors that affect the value of the natural frequen... more Many researches have been done to obtain the factors that affect the value of the natural frequency for composite shell. The free vibration of composite spherical shell cap under impact loading is investigated in this study. The analysis is carried out theoretically using the higher-order shear deformation theory for composite spherical shell under impact loading, the results obtained was compared with numerical analysis using APDL program in the ANSYS software and experimentally using the hummer impact testing system and sigview program. The effects of radius of curvature, Thickness and boundary conditions (built in, quarter built in (arc), simply supported) on the basic frequency of orthotropic composite spherical shell cap have been investigated. The results show the dynamic characteristic it must be seen the rate of decreasing or increasing in the natural frequency of the composite material to take into consideration the effect of duration of impact loading on the dynamic properties of spherical composite shell. Selective composite material and its composition are 50% (0-90) woven fiber glass and 50% polyester resin.
Periodicals of Engineering and Natural Sciences (PEN), 2022
GLARE (glass-reinforced fibre-metal laminate) is aluminum-based material of fiber metal laminate ... more GLARE (glass-reinforced fibre-metal laminate) is aluminum-based material of fiber metal laminate (henceforth FML) that is often fabricated by expensive autoclave procedure. In this study, the process of Injected Molding or (also known as VARTM was employed as a cost-effective alternative to produce GLARE. Several aluminum surface preparation procedures are applied to improve the interlaminar shear strength. A T3 temper 2024 aluminum alloy with 1*1 plain fabricated glass fabric were used to make GLARE composites. GLARE consists of two aluminum sheet as external layer and glass fabric as internal layers. Four sets of aluminum sheets were prepared, one unanodized and three others anodized. Three different anodizing procedures (constant voltage mode, increasing voltage mode and decreasing voltage mode) have been adopted in this research. Two types of curing treatments were applied on VARTM fabricated specimens. According to ASTM D1876 T-peel test standard, the sets of prepared specimens have been tested to examine the adhesive bonding strength and fracture toughness of mode-I. The obtained results which include forcedisplacement curves, peak loads and fracture toughness were showed that a significant improvement for anodized specimens with all voltage modes. The first curing treatment offered better results than second curing treatment. The best improvement was obtained from anodized specimen with decreasing voltage mode cured by the first treatment which reaches to six times the results obtained from unanodized specimen. The delamination behavior for this specimen was verified numerically.
In this work, the stresses and dynamic crack growth were studied and analyzed in thin flat plate ... more In this work, the stresses and dynamic crack growth were studied and analyzed in thin flat plate with a surface crack at the center, subjected to cycling low velocity impact loading for two types of aluminum plates (2024, 6061). Analytical solution using classical plate theory by using Levy solution employed to determine stresses induced in plate due to the impact load. The impact load applied at the center of surface plate, was calculated by Hertzian contact law. Stresses with respect to time at the crack tip and the velocity of crack growth were calculated through elastic plastic fracture mechanics equations. The size of plastic zone around the crack tip which caused by impact loading was found by Dugdal's model theory. Numerical analysis using program (ANSYS11-APDL) based on finite element method used to analysis the stresses with respect to time at crack tip and then find the velocity of the crack growth under cycling impact loading. The results show that the stresses increa...
An Optimum Design of Cam Mechanisms with Roller Follower for Combined Effect of Impact and High Contact Loads
The problem in the design of a cam is the analyzing of the mechanisms and dynamic forces that eff... more The problem in the design of a cam is the analyzing of the mechanisms and dynamic forces that effect on the family of parametric polynomials for describing the motion curve. In present method, two ways have been taken for optimization of the cam size, first the high dynamic loading (such that impact and elastic stress waves propagation) from marine machine tool which translate by the roller follower to the cam surface and varies with time causes large contact loads and second it must include the factors of kinematics features including the acceleration, velocity, boundary condition and the unsymmetrical curvature of the cam profile for the motion curve. In the theoretical solution the unidirectional impact stress waves with the Mushkelishvilis inverse of the singular integral equation for contact stress have been used for analytical solution and a numerical solution have bean solved using F.E.M (ANSYS 10) for stress analysis in a cam surface at condition of rise-dwell-return (R-D-R)...
Journal of Engineering and Sustainable Development, 2018
Experimental study of transient response for different load ratio (0.3, 0.4, 0.5, and 1.0)wt% of ... more Experimental study of transient response for different load ratio (0.3, 0.4, 0.5, and 1.0)wt% of Multi-Walled Carbon Nano-Tubes (MWCNTs) reinforced matrix of composite in addition to woven carbon fiber. Thermal Low Velocity Impact (TLVI) apparatus have been designed to meet the different testing conditions. The effect of transient vibration by impact loading on simply supported curved composite shell with and without thermal condition has been studied experimentally. An improvement occurred in settling time about 62.0% at increased of weight ratio reinforcement up to 1.0wt% of MWCNTs, and under thermal condition the settling time reduced about 44.0%. The results showed that the material which be selected under thermal condition must be include the weighed ratio 0.4wt% because all the specimens reinforced with the mentioned weighted ratios of MWCNTs failed under thermal test except those that containing 0.4wt% and these results enhanced by other results such as the Differential Scanning Calorimetry (DSC). In addition to the passivity of the composite shell structure due to reinforcement by woven carbon fiber and MWCNTs, active double integral of sliding mode controller (SMC) is used with piezoelectric components. The results indicated that an important improvement in transient response at maximum over shoot of the middle surface point about (95.8%) and (50%) in settling time, with SMC the specimens reach the steady state at short time.
Many works have been carried out to determine expressions for critical loads of crack propagation... more Many works have been carried out to determine expressions for critical loads of crack propagation in flat plates under eleme cases of shear, compression, bending and combination of theme. In this new solution, the analytical work must take into consideration the effect of fluctuating the buckling load for panels under various types of bending and shear loadi resea with for co the str
In this work, the stresses and dynamic crack growth were studied and analyzed in thin flat plate ... more In this work, the stresses and dynamic crack growth were studied and analyzed in thin flat plate with a surface crack at the center, subjected to cycling low velocity impact loading for two types of aluminum plates (2024, 6061). Three main methods have been used in this study; first, analytical solution using classical plate theory by using Levy solution to determine stresses induced in plate due to the impact load. The impact load applied at the center of surface plate, was calculated by Hertzian contact law. The principal stresses with respect to time at the crack tip and the velocity of crack growth were calculated through elastic plastic fracture mechanics equations, because the impact loading will cause plastic zone around the crack tip and by Dugdal’s model theory is found the size of this zone. Second, numerical analysis using program (ANSYS11-APDL) based on finite element method used to analyze and calculate the stresses and strains with respect to time at crack tip and then...
Fibers, metal and resin were made up together using mold and compression method. Hand layup w... more Fibers, metal and resin were made up together using mold and compression method. Hand layup was used and Taguchi method for obtaining the optimum parameter. The workpiece with most significant parameters is FG-Al with polyester resin. The best Ra after milling is for FG-Al, CFAl with polyester resin. Recently, composite materials were widely used in different applications due to their lightweight, and good thermal and mechanical properties. In this study, an attempt to manufacture laminate composites by hand layup was performed. Also, optimal parameters for the best surface roughness were investigated. Therefore, three parameters had been examined; spindle speed, feed rate, and depth of cut. The L9 Taguchi orthogonal array, signal to noise (S/N) ratio, and analysis of variance (ANOVA) were selected to determine the optimum parameters. To create composites, the compression method was employed. Four different types of composites were manufactured with 2.8 mm thickness, to dete...
In the present research a new test rig has been proposed to be suitable for different cyclic load... more In the present research a new test rig has been proposed to be suitable for different cyclic loads such as cyclic bending, cyclic torsion, proportional and non proportional loads. In this work the efforts were concentrated on the cyclic bending loads concerning cracked pipes with or without internal pulsing pressure to study crack propagation in small bore pipes (up to 1'') for transverse or inclined cracks. The rig simulates the real service conditions under different stresses by means the least dangerous case will be suggested, so the experiments were considered for copper pipe, and the results have been tabulated and drawn to demonstrate the crack growth behavior as well as to justify the outcomes practically, consequently the durability of this new rig has been confirmed with new concluded facts.
Dynamic Crack Propagation in Thin Plates Under Cycling Thermal Stresses Effect with Cycling Impact Loading
ABSTRACT: This paper presents the dynamic propagation method of crack growth in structures subjec... more ABSTRACT: This paper presents the dynamic propagation method of crack growth in structures subject to cycling thermal stresses with cycling effect loading for two types of aluminum plate (7075, 6061) with aspect ratio (1, 2) and plate boundary condition (SFSF). Using numerical research and experimental study, crack lengths taken (3, 5) mm and crack angles (0, 90). Numerical analysis using program (ANSYS-18 APDL) based on finite element method, the purpose of numerical analysis to obtain displacements from mechanical and thermal stresses regarding time at crack tip in thin aluminum plate, then calculate dynamic crack propagation through displacements under effect of the mechanical stress and thermal stress. Practically, a rig was designed and produced to use a high-resolution camera connected to the device to apply cycling effect loading on the center cracked plates under varying temperature and measure the dynamic crack propagation. Results showed that the dynamic crack propagation ...
This study aims to model the flank wear prediction equation in metal cutting, depending on the wo... more This study aims to model the flank wear prediction equation in metal cutting, depending on the workpiece material properties and almost cutting conditions. A new method of energy transferred solution between the cutting tool and workpiece was introduced through the flow stress of chip formation by using the Johnson-Cook model. To investigate this model, an orthogonal cutting test coupled with finite element analysis was carried out to solve this model and finding a wear coefficient of cutting 6061-T6 aluminum and the given carbide tool.
In this paper, a quick stop device technique and the streamline model were employed to study the ... more In this paper, a quick stop device technique and the streamline model were employed to study the chip formation in metal cutting. The behavior of chip deformation at the primary shear zone was described by this model. Orthogonal test of turning process over a workpiece of the 6061-T6 aluminum alloy at different cutting speeds was carried out. The results of the equivalent strain rate and cumulative plastic strain were used to describe the complexity of chip formation. Finite element analysis by ABAQUS/explicit package was also employed to verify the streamline model. Some behavior of formation and strain rate distribution differs from the experimental results, but the overall trend and maximum results are approximately close. In addition, the quick stop device technique is described in detail. Which could be used in other kinds of studies, such as the metallurgical observation.
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