Non Conventional Machining Process Ppt

Uses an ultra-high-pressure stream of water (often mixed with abrasives) to cut through thick metals, composites, or stone. 2. Thermal Processes

Produces clean edges without mechanical deformation burrs.

Capital costs for laser (LBM) and electron beam (EBM) systems are incredibly high compared to abrasive jet systems (AJM). 6. Slide-by-Slide Outline for a Presentation (PPT)

– Comparative metrics (accuracy, cost, material compatibility). Non Conventional Machining Process Ppt

These processes utilize high-velocity particles or fluids to mechanically erode the workpiece material.

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: Capable of producing intricate shapes, micro-holes, and deep cavities Fragile Workpieces Uses an ultra-high-pressure stream of water (often mixed

Materials like Nimonic alloys, tungsten carbide, and stainless steel are incredibly difficult to machine conventionally.

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The demand for high-strength temperature-resistant (HSTR) alloys, composites, and miniaturized components has rendered conventional machining (turning, milling) ineffective. This paper reviews five major classes of non-conventional machining processes: Mechanical (USM, AWJM), Electrical (EDM, WEDM), Electro-Chemical (ECM), and Thermal (LBM, PBM). Each process is analyzed based on its working principle, material removal mechanism, surface integrity, and economic viability. Results indicate that while EDM dominates die-sinking applications due to high accuracy (tolerance ±0.005 mm), ECM offers stress-free surfaces (Ra 0.05 µm) ideal for aerospace rotors. Laser machining provides the highest speed for micro-features but suffers from heat-affected zones. Hybrid processes are identified as the critical future direction. Capital costs for laser (LBM) and electron beam

Generally slower than conventional rough milling or turning.

NCM processes are primarily categorized based on the type of energy they employ for material removal: