Performed Explicit Analysis of Machining with Planar work piece using ANSYS workbench
Objective: Perform an Explicit dynamics simulation of the machining operation with using a planer and observe their behaviour at 2 different velocities and find out the Equivalent Stress, Total Deformation and also insert a User defined result to calculate the temperature of the body.
Pre-processing Setup:
Geometry:
Cutting tool is kept as Rigid as we have main focus on Planar only
Planar is kept flexible with Steel 1006 as material
Materials:
For cutting tool Structural steel is used while for planar Steel 1006 is used.
Connections:
No contact is use in Explicit analysis . It depends mainly on Body Interactions
Mesh:
For cutting tool, Method is used with elements as Tetrahedrons. While for planar four edge sizing is used with 10 division
Analysis Settings:
End time of 7.5e-4 sec is given
Fixed support:
Velocity:
Velocity of 20000 mm/s and 15000 mm/s is given for two cases
Post-processing results:
Case 1 : Velocity 20000 mm/s
Total deformation at 7.5e-4 sec:
Min. value = 0 mm , Max. value = 29.259 mm
Equivalent stress at 7.5e-4 sec:
Min. value = 1.2546 MPa , Max. value = 491.94 MPa
User defined Temperature :
Case 2 : Velocity 15000 mm/s
Total deformation at 7.5e-4 sec:
Min. value = 0 mm , Max. value = 23.176 mm
Equivalent stress at 7.5e-4 sec:
Min. value = 1.428 MPa , Max. value = 634.29 MPa
User defined Temperature :
Conclusion:
Comparing results for both cases :
|
Velocity mm/s |
Total deformation in mm |
Equivalent stress in MPa |
Temperature in degree centigrade |
|||
|
Min |
Max |
Min |
Max |
Min |
Max |
|
|
20000 |
0 |
29.259 |
1.2546 |
491.94 |
19.85 |
376.95 |
|
15000 |
0 |
23.176 |
1.428 |
634.29 |
19.85 |
363.51 |
From above table, we can observe that:
- Total deformation is maximum in case 1 with velocity of 20000 mm/s.
- Equivalent stress having Minimum and Maximum value higher in Case 2
- Temperature is maximum in Case 1 20000 mm/s as it is travelling with higher velocity and will cut the workpiece with more temperature as compared to Case 2 15000 mm/s