Processes are classified based on the type of energy used to remove material: IIT Kanpur Mechanical Processes : Use mechanical energy (erosion) to remove material. Ultrasonic Machining (USM) : Uses high-frequency vibrations and abrasive slurry. Abrasive Jet Machining (AJM) Water Jet Machining (WJM) Thermal Processes : Use heat to melt or vaporize material. Electrical Discharge Machining (EDM) : Uses spark erosion. Laser Beam Machining (LBM) : Uses a concentrated light beam. Plasma Arc Machining (PAM) Electron Beam Machining (EBM) Chemical & Electrochemical Processes Electrochemical Machining (ECM) : Uses electrolysis. Chemical Machining (CHM) : Uses chemical etching. Slideshare 4. Detailed Example: Ultrasonic Machining (USM)
: Ideal for turbine blades, dental implants, and precision molds. Non Conventional Machining Process Ppt
He used high-frequency vibrations to drive abrasive slurry into the material, chipping away microscopic pieces. Processes are classified based on the type of
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. Electrical Discharge Machining (EDM) : Uses spark erosion
NCMPs are generally classified by the type of energy they use to remove material: Mechanical (Abrasive Jet, Ultrasonic):
: Parts have intricate shapes or very small features.
To machine extremely hard or brittle materials (e.g., ceramics, carbides).