Calculate the Ratio of Material Removal Rate by Throwing Mechanism to Hammering Mechanism
How can we calculate the ratio of Material Removal Rate by Throwing Mechanism to Hammering Mechanism?
Consider the following values for calculation:
- A square hole of 5 mm X 5 mm to be drilled in a 4 mm thick Tungsten Carbide plate with fracture hardness as 6900 N/mm².
- The tool is copper with fracture hardness of 1500 N/mm². The tool oscillates with amplitude of 24 um at 25 kHz.
- Number of impacts on workpiece by the grits in each cycle is 35000.
- Abrasive particle used is boron carbide of diameter 20 microns and its density is 3.8 g/cm³.
- The feed force is constant and equal to 3.5 N.
Answer:
The ratio of Material Removal Rate by throwing mechanism to hammering mechanism in a specific machining operation can be calculated using details about the operation, workpiece, and tool provided.
Exploration and analysis of the given parameters allow us to determine the ratio of Material Removal Rate (MRR) by throwing mechanism to hammering mechanism. To calculate this ratio, we need to consider various factors such as the size of the hole, the thickness of the workpiece, the hardness of the workpiece and tool, the oscillation details of the tool, the number of impacts on the workpiece, the characteristics of the abrasive particle, and the feed force applied.
By applying the appropriate formulae specific to the mechanisms of material removal (throwing and hammering), we can derive the ratio of MRR by each mechanism. It is important to analyze and utilize the provided data effectively to accurately calculate this ratio.
Understanding the intricacies of these mechanisms and their impact on material removal efficiency is key to optimizing machining operations. The calculated ratio can provide valuable insights into the effectiveness of throwing and hammering mechanisms in a given machining scenario.