Problem 29.9 Which of the following materials are suitable for EDM, EBM, ECM? State Why? a) stainless steel, b) ceramics, c) quartz, d) thermoset plastic, d) copper, e) diamond.

What is the machining time using a) EDM, b) ECM? Problem 29.8Ě hole that is 70mm deep and 10mm in diameter. What types of applications is this well suited to? Are there particular dies that benefit from this technique? Problem 29.7 Wire EDM produces parts with a profile that is vertical.

Problem 29.6Ğxplain how EDM is best suited to producing complex internal features, such as sharp inside corners. Problem 29.5ĝescribe good applications for EDM. But an ECM machine can cut a 5mm square hole 2mm deep at a current of _ in one minute. Problem 29.4 We have a metal alloy that is a combination of Zinc and Silicon, but we are unsure what the ratio of the metals is. To cut down 1cm/min, what current is generally required?ī) How would the current change if the part was 3% carbon?Ĭ) What advantages does ECM have over EDM? The feature being cut is a square hole 1cm by 0.5 cm. Problem 29.3 a) ECM is used to remove metal from an iron workpiece. at īy clicking the Download button you can see all examples of the Tungsten Rounded font along with all the styles.29.3 Ghosh, A., Manufacturing Science, Ellis Horwood Ltd., Chichester, UK, 1986.

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