Non Conventional - Machining Process Ppt

In the world of manufacturing, traditional machining—think drilling, turning, and milling—relies on physical contact and a tool that is harder than the workpiece. However, as industries like aerospace and electronics began using ultra-hard alloys and demanding microscopic precision, these "conventional" methods hit a wall. Enter Non-Conventional Machining Processes (NCMP) 1. What Makes Them "Non-Conventional"?

Ideal for exotic, high-strength, and temperature-resistant alloys used in aerospace.

Most NCMPs are CNC-controlled, allowing for extreme repeatability and minimal human error. 4. The Trade-offs Non Conventional Machining Process Ppt

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EDM, also known as spark erosion machining, is one of the most widely adopted thermal non-conventional processes. It requires both the tool and workpiece to be electrically conductive. What Makes Them "Non-Conventional"

Uses ionized gas (plasma) at extremely high temperatures. 3. Comparison: Conventional vs. Non-Conventional

: Highly localized heat is used to melt and vaporize the workpiece material. The workpiece acts as an anode

Operating as the reverse of electroplating, ECM works on Michael Faraday’s laws of electrolysis. The workpiece acts as an anode, and the tool is the cathode. A high-velocity electrolyte is pumped through the gap while direct current passes through, causing atomic-level anodic dissolution.

Controlled chemical etching removes material from selected areas of the workpiece. Chemical Milling (CHM) Photochemical Machining (PCM) 4. Thermal / Electro-Thermal Processes

These processes use mechanical kinetic energy, driving high-velocity particles or fluids to erode the workpiece material. Ultrasonic Machining (USM)