Week 9 Machining with Planer Challenge

Machining with planar Challenge:

Aim:To perform explicit dynamics simulation for machining with the planar to find equivalent stress,deformation.

Objective:

You will have to perform an explicit dynamics simulation to find out the Equivalent Stress, Total Deformation and also insert a User defined result to calculate the temperature of the body. You need to perform this for 2 cases. One will be with a cutting velocity of 20000mm/s and the other will be with a cutting velocity of 15000mm/s.

Procedure:

• Firstly open ANSYS workbench software.
• Select explicit dynamics from the analysis system.
• And then import the geometry from the system files.

• Create a explicit material of steel to the workpiece from engineering data.

• Then we proceed for meshing for this we select edge sizing for meshing with 10 no of divisions.

• Select the tetrahedrons for the cutting tool for meshing.

• And in analysis system assign the no of steps as 1 from the below.

• After that assign velocity for the cutting tool as 20000 mm/s for the case 1 along X co-ordinates.

• After that assign fixed support at the bottom end of the workpiece.

• And finally we need to get the solution for

1. Total deformation
2. Equivalent stress
3. User defined result

CASE 1:

Total deformation:

Maximum- 11.037 mm

Minimum- 0

Equivalent stress:

Maximum- 661.38 mpa

Minimum- 0.54525 mpa

User Defined Result(temp):

MAximum- 356.59 'c

Minimum- 21.653'c

CASE 2:

Total Deformation:

Maximum- 32.79 mm

Minimum- 0

Equivalent stress:

Maximum- 666.07 mpa

Minimum- 3.7397 mpa

User defined(temp):

Maximum- 345.29 'c

Minimum- 21.487 'c

Tabular data:

Total Deformation(mm) Equivalent stress(mpa) user Defined result('C)

Max Min Max Min MAx Min

CASE 1 11.037 0 661.38 0.54525 356.59 21.653

CASE 2 32.79 0 666.07 3.7397 345.29 21.487

Conclusion:

from the above tabular data we found that deformation is less for case 1 than that of case 2.And equivalent stress is also less for case 1 than that of case 2.The user defined result for temperature is high for case 1 than that of case 2.