After invention of EDM, surface finish have improved by how much factor?

Related MCQs

• Machining speeds have gone up to how many times after the invention of EDM?
• State whether the following statement is true or false regarding EDM. “In EDM, process is affected by hardness of material.”
• State whether the following statement is true or false about material removal in EDM. “In EDM, high pressures allow the metal to evaporate.”
• State whether the following statement is true or false regarding wear in EDM. “In EDM, electrode wear is less dominant when it comes to micromachining applications.”
• State whether the following statement is true or false regarding wear in EDM. “In EDM, corner wear ratio does not depend on type of electrode material.”
• State whether the following statement is true or false regarding the dielectric in EDM. “In EDM, flushing through the tool is more preferred than side flushing.”
• State whether the following statement is true or false regarding the HAZ in EDM. “In EDM, post treatment to recover fatigue strength is not recommended.”
• The only difference between die-sink EDM and wire cut EDM is the            
• State whether the following statement is true or false regarding surface finish in CHM. “The surfaces, which are machined using Chemical milling, will have regular lay pattern.”
• Which of the following factors affect the surface finish of machined parts in Ultrasonic Machining?