Week 9 Machining with Planer Challenge

Machining with Planer

Objective:

Perform an explicit dynamics simulation on Machining with Planer model to find out the Equivalent Stress, Total Deformation and temperature of the body for two different velocity of cutting tool.

1. Analysis System: Explicit Dynamics
2. Material Properties:

• Workpiece - Steel 1006 (Explicit Material)

• Cutting Tool – Structural Steel

3. Stiffness Behaviour:

• Workpiece - Flexible
• Cutting Tool – Rigid

4. Mesh:

Patch Conforming Method: Tetrahedrons for cutting tool

Edge mesh sizing by 10 number of divisions.

Mesh Element Quality:

5. Analysis Setting

No of Steps: 1

Load Step Type: Explicit Time Integration

End Time: 0.00075

Maximum Energy Error – 0.14

6. Boundary Conditions:

• Fixed support is defined at bottom face of workpiece.

• velocity is given to cutting tool.

Result Plot:

Case_1: Velocity of Cutting Tool is 15000 mm/s

Equivalent stress
Total Deformation
Temperatures

Case_2: Velocity of Cutting Tool is 20000 mm/s

Equivalent stress
Total Deformation
Temperatures

Conclusion:

Sr. No	Result Plot	Case_1	Case_2
1	Equivalent stress (Mpa)	634.31	500.68
2	Total Deformation(mm)	23.176	29.266
3	Temperatures(°C)	363.51	376.96

1. From above result table is clear that equivalent stress is lower in case_2 where cutting velocity is 20000 mm/s.
2. And temperature is increase by around 10°C to 15°C as velocity of cutting tool is increases from 15000 mm/s to 20000 mm/s.
3. As case_2 has higher cutting velocity therefore total deformation is also higher in case_2 as compare to case_1.