Question

In an orthogonal cutting operation, the chip thickness before cutting is 0.1 mm, and chip thickness after cutting is 0.2 mm. if cutting force is 400 n, and friction force is 250 n, calculate the percentage of the total energy that goes into overcoming friction at the tool-chip interface.

Answer 1

In the orthogonal cutting operation, 62.5% of the total energy is used to overcome the friction at the tool-chip interface, calculated by dividing the friction force by the cutting force and then multiplying the result by 100.

Step-by-step explanation:

The question pertains to an orthogonal cutting operation where we are given that the chip thickness before cutting is 0.1 mm and after cutting is 0.2 mm. The forces involved include a cutting force of 400 N and a friction force of 250 N. The percentage of the total energy going into overcoming friction at the tool-chip interface can be calculated using the formula Energy for friction = (Friction Force / Cutting Force) × 100%.

In this case, the Energy for friction percentage is calculated as follows:

• Divide the friction force by the cutting force.
• Multiply the result by 100 to get the percentage.

Doing so, we have (250 N / 400 N) × 100% = 62.5%, which means that 62.5% of the total energy is used to overcome friction at the tool-chip interface during the cutting operation.