Non Conventional Machining Process Ppt Updated May 2026

| Criteria | Score (out of 10) | | :--- | :--- | | Content Coverage | 9 | | Visual Appeal | 7 | | Practical Utility | 6 | | Technical Accuracy | 8 | | Modern Relevance (Industry 4.0) | 6 | | Weighted Total | 7.2 / 10 (B Grade) |

Final Comment:
The updated PPT is a significant step forward from the previous version, especially with the removal of obsolete content. With the suggested reduction in text density, addition of a process selection matrix, and correction of the electrical conductivity point for EDM, this will become an excellent teaching/training resource.

This guide outlines the structure and key content for an updated presentation (PPT) on Non-Conventional Machining Processes (NCMP) , also known as Non-Traditional Machining (NTM)

. These processes are essential for machining extremely hard or brittle materials and complex geometries where traditional tools fail. Impro Precision 1. Introduction & Overview Definition

: Processes that remove material using various forms of energy (thermal, chemical, electrical, or mechanical) instead of direct physical contact from a sharp cutting tool. The Need for NCMP Machining high-strength, temperature-resistant alloys. Creating intricate shapes and micro-sized holes.

Avoiding thermal damage or mechanical stress on flexible workpieces. Key Differences

: Unlike conventional machining, these methods often have no tool-to-workpiece contact, leading to higher accuracy and better surface finishes. RWD Tool & Machine Ltd. 2. Classification of Processes

Non-conventional processes are classified by the type of energy used to erode material:

IJERT – International Journal of Engineering Research & Technology Energy Type Representative Processes Mechanism of Material Removal Mechanical Ultrasonic Machining (USM), Waterjet Machining (WJM) Erosion by high-velocity particles or fluid Electrical Electro-Discharge Machining (EDM), Wire EDM Spark erosion and melting Chemical Milling, Photochemical Machining Controlled chemical etching/dissolution Electrochemical Electrochemical Machining (ECM), EC Grinding Ion displacement (Reverse Electroplating) Thermal/Optical Laser Beam (LBM), Plasma Arc (PAM), Electron Beam (EBM) Melting or vaporization via concentrated heat 3. Deep Dive into Key Processes Waterjet Machining (WJM) non conventional machining process ppt updated

: Uses a high-pressure jet of water (often with abrasives) to cut through materials without creating a heat-affected zone. Electro-Discharge Machining (EDM)

: Uses electrical sparks to erode material from a conductive workpiece submerged in a dielectric fluid. Ultrasonic Machining (USM)

: Employs high-frequency vibrations and abrasive slurry to "chip away" at hard, brittle materials like glass or ceramics. Electrochemical Machining (ECM)

: Removes metal atom-by-atom via electrolysis; it is ideal for producing complex injection molds with smooth finishes. IIT Kanpur 4. Advantages & Applications High Precision

: Capable of achieving tolerances that traditional milling or turning cannot reach. Versatility

: Can machine materials regardless of their hardness (e.g., diamond, titanium, or carbides). Aerospace & Medical

: Widely used for jet engine turbine blades, surgical implants, and micro-electronics. Aero Spec Engineering 5. Updated Industry Trends Hybrid Machining

: Combining two non-traditional methods (e.g., Laser-assisted EDM) to improve speed and surface quality. Automation & Industry 4.0 : Integration with advanced CNC computer automation for real-time monitoring and adaptive control. Sustainability | Criteria | Score (out of 10) |

: Moving toward "Green Machining" by using biodegradable dielectric fluids and recycling abrasive materials. EMC Precision Introduction to Non-Traditional Machining - IIT Kanpur

Presentation Title: Advanced & Non-Conventional Machining Processes (2026 Update) 1. Introduction to Non-Conventional Machining (NCM)

Definition: Processes that remove material without direct physical contact between a sharp tool and the workpiece.

Why NCM?: Necessary for modern materials (superalloys, ceramics, composites) that are too hard, brittle, or delicate for traditional milling/turning.

Key Advantage: High precision and the ability to create complex 3D geometries or micro-holes that standard drills cannot.

2. Classification of ProcessesNon-conventional processes are categorized by the type of energy used to remove material:

Mechanical: Abrasive Jet Machining (AJM), Ultrasonic Machining (USM), Water Jet Cutting.

Thermal/Electro-Thermal: Laser Beam Machining (LBM), Plasma Arc Machining (PAM), Electrical Discharge Machining (EDM). Final Comment: The updated PPT is a significant

Chemical/Electrochemical: Electrochemical Machining (ECM), Chemical Milling. 3. Deep Dive: Key Processes

Electrical Discharge Machining (EDM): Uses spark erosion in a dielectric fluid to shape conductive materials.

Ultrasonic Machining (USM): Employs an ultrasonic transducer and abrasive slurry. Best for hard and brittle materials like glass or ceramics.

Laser Beam Machining (LBM): Uses a concentrated light beam for high-speed, contactless cutting and drilling. 4. Comparative Analysis Conventional Machining Non-Conventional Machining Tool Material Must be harder than workpiece Physical hardness is often irrelevant Contact Direct physical contact No direct tool-workpiece contact Tool Wear High due to friction Minimal to zero mechanical wear Precision Limited by tool size/deflection Extremely high (micron level) 5. Industrial Applications (2026 Trends) Aerospace: Creating cooling holes in turbine blades.

Medical: Manufacturing complex dental implants and surgical tools.

Electronics: Precision micro-drilling for semiconductor chips. 6. Conclusion

NCM is no longer just "alternative"; it is the primary choice for high-tech manufacturing where traditional methods fail.

Sustainability: Many NCM processes are quieter and produce less physical waste than traditional grinding. Select Conventional or Non-conventional Machining Process

Reviewer: [Your Name/Department]
Date: [Current Date]
Version Reviewed: Updated PPT v2.0
Overall Verdict: Good with Minor Revisions Required (or Excellent / Needs Significant Improvement)