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the power needed for a machining operation. Power can be calculated from P = hp (horsepower) where Fc is in lb, V in sfpm, and E = mechanical efficiency of the machine (typically around 90%). F.V 33,000-E - the load which the tool, machine and workpiece must be able to withstand during machining. The inability to withstand this load can result in a broken tool, a damaged part, and/or deflection in the machine (and hence the inability to accurately machine items).

the power needed for a machining operation. Power can be calculated from P = hp (horsepower) where Fc is in lb, V in sfpm, and E = mechanical efficiency of the machine (typically around 90%). F.V 33,000-E - the load which the tool, machine and workpiece must be able to withstand during machining. The inability to withstand this load can result in a broken tool, a damaged part, and/or deflection in the machine (and hence the inability to accurately machine items).

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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 Derive empirical equations for FC and θ, as described, where FC values are in lb. 



Below is a transcription and detailed explanation of the table data: ### Table: Experiment Results for Cutting Force and Temperature | Experiment # | Speed (V), sfpm | Feed (f), ipr | Depth of cut (d), in. | Cutting fluid flow | Scale factor | Average Z force (= cutting force Fₘ) | Average temperature (θ), °C | |--------------|-----------------|---------------|-----------------------|-------------------|--------------|-------------------------------------|-----------------------------| | | | | | | | N | lb. | | 1 | 450 | 0.0030 | 0.025 | off | 5,000 | 1673 | 376 | 58 | | 2 | 350 | 0.0030 | 0.025 | off | 5,000 | 1684 | 379 | 49 | | 3 | 250 | 0.0030 | 0.025 | off | 5,000 | 1593 | 358 | 46 | | 4 | 250 | 0.0060 | 0.025 | off | 10,000 | 1339 | 301 | 58 | | 5 | 250 | 0.0120 | 0.025 | off | 10,000 | 2320 | 522 | 76 | | 6 | 250 | 0.0120 | 0.0375 | off | 20,000 | 1595 | 359 | 92 | | 7 | 250 | 0.0120 | 0.050 | off | 20,000 | 1933 | 435 | 101 | | 8 | 250 | 0.0120 | 0.050 | on | 20,000 | 1953 | 439 | 50 | ### Explanation: - **Speed (V)**: Measured in surface feet per minute (sfpm), this indicates the cutting speed. - **
Transcribed Image Text:Below is a transcription and detailed explanation of the table data: ### Table: Experiment Results for Cutting Force and Temperature | Experiment # | Speed (V), sfpm | Feed (f), ipr | Depth of cut (d), in. | Cutting fluid flow | Scale factor | Average Z force (= cutting force Fₘ) | Average temperature (θ), °C | |--------------|-----------------|---------------|-----------------------|-------------------|--------------|-------------------------------------|-----------------------------| | | | | | | | N | lb. | | 1 | 450 | 0.0030 | 0.025 | off | 5,000 | 1673 | 376 | 58 | | 2 | 350 | 0.0030 | 0.025 | off | 5,000 | 1684 | 379 | 49 | | 3 | 250 | 0.0030 | 0.025 | off | 5,000 | 1593 | 358 | 46 | | 4 | 250 | 0.0060 | 0.025 | off | 10,000 | 1339 | 301 | 58 | | 5 | 250 | 0.0120 | 0.025 | off | 10,000 | 2320 | 522 | 76 | | 6 | 250 | 0.0120 | 0.0375 | off | 20,000 | 1595 | 359 | 92 | | 7 | 250 | 0.0120 | 0.050 | off | 20,000 | 1933 | 435 | 101 | | 8 | 250 | 0.0120 | 0.050 | on | 20,000 | 1953 | 439 | 50 | ### Explanation: - **Speed (V)**: Measured in surface feet per minute (sfpm), this indicates the cutting speed. - **
- **The power** needed for a machining operation. Power can be calculated from \[ P = \frac{F_C \cdot V}{33,000 \cdot E} \, \text{hp (horsepower)} \] where \( F_C \) is in lb, \( V \) in sfpm, and \( E \) = mechanical efficiency of the machine (typically around 90%). - **The load** which the tool, machine, and workpiece must be able to withstand during machining. The inability to withstand this load can result in a broken tool, a damaged part, and/or deflection in the machine (and hence the inability to accurately machine items).
Transcribed Image Text:- **The power** needed for a machining operation. Power can be calculated from \[ P = \frac{F_C \cdot V}{33,000 \cdot E} \, \text{hp (horsepower)} \] where \( F_C \) is in lb, \( V \) in sfpm, and \( E \) = mechanical efficiency of the machine (typically around 90%). - **The load** which the tool, machine, and workpiece must be able to withstand during machining. The inability to withstand this load can result in a broken tool, a damaged part, and/or deflection in the machine (and hence the inability to accurately machine items).
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