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(Electric Discharge Machining) Iron is to be machined in an EDM operation. If discharge current = 30 amps, what is the expected metal-removal rate? The melting point of iron is known to be 1539°C, and the metal removal rate constant of proportionality K = 664 in SI units (5.08 in U.S. customary units) R= V = CIt I = V = gr A V At fr EA gr C(EAt) gr - CI A CE gr Typical values of specific removal rate C for selected work materials in electrochemical machining. Compiled from data in [11]. Specific Removal Rate C Materialª mm³/amp-sec (in³/amp-min) Materialª Aluminum (3) Low alloy steel Copper (1) High alloy steel Iron (2) Stainless steel Nickel (2) Titanium (4) 3.44 x 10-2 7.35 x 107 3.69 × 10-2 -2 (1.26 × 10-4) (2.69 x 10-4) (1.35 × 10-4) 3.42 x 10-2 (1.25 × 10-4) Specific Removal Rate C (1.1 × 10-4) mm3/amp-sec (in3/amp-min) 3.0 x 10-2 2.73 x 10-2 2.46 × 10-2 (1.0 × 10-4) (0.9 × 10-4) 2.73 x 10-2 (1.0 × 10-4) a The most common valence given in parentheses () is assumed in determining specific removal rate C. For a different valence, multiply C' by the most common valence and divide by the actual valence.

(Electric Discharge Machining) Iron is to be machined in an EDM operation. If discharge current = 30 amps, what is the expected metal-removal rate? The melting point of iron is known to be 1539°C, and the metal removal rate constant of proportionality K = 664 in SI units (5.08 in U.S. customary units) R= V = CIt I = V = gr A V At fr EA gr C(EAt) gr - CI A CE gr Typical values of specific removal rate C for selected work materials in electrochemical machining. Compiled from data in [11]. Specific Removal Rate C Materialª mm³/amp-sec (in³/amp-min) Materialª Aluminum (3) Low alloy steel Copper (1) High alloy steel Iron (2) Stainless steel Nickel (2) Titanium (4) 3.44 x 10-2 7.35 x 107 3.69 × 10-2 -2 (1.26 × 10-4) (2.69 x 10-4) (1.35 × 10-4) 3.42 x 10-2 (1.25 × 10-4) Specific Removal Rate C (1.1 × 10-4) mm3/amp-sec (in3/amp-min) 3.0 x 10-2 2.73 x 10-2 2.46 × 10-2 (1.0 × 10-4) (0.9 × 10-4) 2.73 x 10-2 (1.0 × 10-4) a The most common valence given in parentheses () is assumed in determining specific removal rate C. For a different valence, multiply C' by the most common valence and divide by the actual valence.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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(Electric Discharge Machining) Iron is to be machined in an EDM operation. If discharge current = 30 amps, what is the expected metal-removal rate? The melting point of iron is known to be 1539°C, and the metal removal rate constant of proportionality K = 664 in SI units (5.08 in U.S. customary units) gr R = A V = CIt I = V = V At fr EA gr C(EAt) gr fr CI CE gr Typical values of specific removal rate C for selected work materials in electrochemical machining. Compiled from data in [11]. Specific Removal Rate C Materialª mm³/amp-sec (in³/amp-min) Materialª Aluminum (3) Copper (1) Iron (2) Nickel (2) 3.44 x 10-² 7.35 x 10-2 3.69 × 10-2 (1.26 x 10-4) (2.69 × 10-4) (1.35 × 10-4) X 3.42 x 10-2 (1.25 × 10-4) Low alloy steel High alloy steel Stainless steel Titanium (4) Specific Removal Rate C (1.1 × 10¯4) mm3/amp-sec (in³/amp-min) 3.0 x 10-2 2.73 × 10-2 2.46 x 10-2 (1.0 x 10-4) (0.9 × 10-4) 2.73 × 10-² (1.0 × 10-4) a The most common valence given in parentheses () is assumed in determining specific removal rate C. For a different valence, multiply C by the most common valence and divide by the actual valence.
Transcribed Image Text:(Electric Discharge Machining) Iron is to be machined in an EDM operation. If discharge current = 30 amps, what is the expected metal-removal rate? The melting point of iron is known to be 1539°C, and the metal removal rate constant of proportionality K = 664 in SI units (5.08 in U.S. customary units) gr R = A V = CIt I = V = V At fr EA gr C(EAt) gr fr CI CE gr Typical values of specific removal rate C for selected work materials in electrochemical machining. Compiled from data in [11]. Specific Removal Rate C Materialª mm³/amp-sec (in³/amp-min) Materialª Aluminum (3) Copper (1) Iron (2) Nickel (2) 3.44 x 10-² 7.35 x 10-2 3.69 × 10-2 (1.26 x 10-4) (2.69 × 10-4) (1.35 × 10-4) X 3.42 x 10-2 (1.25 × 10-4) Low alloy steel High alloy steel Stainless steel Titanium (4) Specific Removal Rate C (1.1 × 10¯4) mm3/amp-sec (in³/amp-min) 3.0 x 10-2 2.73 × 10-2 2.46 x 10-2 (1.0 x 10-4) (0.9 × 10-4) 2.73 × 10-² (1.0 × 10-4) a The most common valence given in parentheses () is assumed in determining specific removal rate C. For a different valence, multiply C by the most common valence and divide by the actual valence.
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