Non Conventional Machining Process Ppt -

Subtitle: Advanced Manufacturing Techniques for Modern Materials

| Parameter | Conventional | Non-Conventional | | :--- | :--- | :--- | | Tool Material | Harder than workpiece (HSS, Carbide) | No physical contact or softer/conductive material (e.g., graphite) | | Mechanical Forces | High clamping forces required | Very low or zero forces | | Heat Generation | Frictional heat in shear zone | Controlled heat, or no heat (ECM, USM) | | Geometric Complexity | Limited by tool access | Virtually unlimited (holes at angles, micro-features) | | Material Hardness | Cutting becomes impossible above 45 HRC | No correlation with hardness |

The final slides of your Non Conventional Machining Process PPT should look forward. The industry is moving toward Hybrid Machining Processes where two NCM methods combine to overcome individual limitations.

Non-conventional machining (NCM) processes, also known as non-traditional machining, remove material using energy forms like mechanical, thermal, electrical, or chemical, rather than physical contact with a sharp tool. This guide outlines the key components often featured in an educational PowerPoint (PPT) on this topic. 1. Introduction and Need for NCM

Traditional machining (like turning or milling) relies on physical contact and tool hardness exceeding workpiece hardness. NCM is used when:

Material Hardness: Workpieces are extremely hard or brittle (e.g., ceramics, superalloys). Non Conventional Machining Process Ppt

Complex Geometries: Parts have intricate shapes or very small features.

Surface Integrity: Avoiding mechanical stresses or thermal damage caused by traditional tools. 2. Classification of Processes

NCM processes are categorized by the type of energy used to remove material: UNCONVENTIONAL MACHINING PROCESS | PPT - Slideshare

Non-Conventional Machining (NCM) processes, also known as advanced or non-traditional machining, are specialized manufacturing techniques that remove material using various forms of energy (mechanical, thermal, electrical, or chemical) instead of direct physical contact with a sharp cutting tool . These processes are essential for machining extremely hard or brittle materials and creating complex geometries that traditional methods like milling or turning cannot handle . Classification of NCM Processes

NCM processes are primarily classified by the type of energy used for material removal : | Parameter | Conventional | Non-Conventional | |

Mechanical Energy Processes: Use high-velocity particles or fluids to erode material.

Ultrasonic Machining (USM): Employs a vibrating tool and abrasive slurry .

Abrasive Jet Machining (AJM): Uses a high-velocity stream of abrasive particles .

Water Jet Machining (WJM): Uses high-pressure water streams to cut .

Thermal/Electro-Thermal Energy Processes: Use heat to melt or vaporize material. Need for Non-Conventional: High strength alloys

Electrical Discharge Machining (EDM): Removes metal via repetitive spark discharges in a dielectric fluid .

Laser Beam Machining (LBM): Uses a focused, high-intensity laser beam .

Electron Beam Machining (EBM): Uses a focused beam of high-velocity electrons .

Electrochemical/Chemical Processes: Use chemical reactions or electrolysis.

Electrochemical Machining (ECM): Removes material atom-by-atom via electrolysis .

Chemical Machining (CHM): Uses etchants to selectively dissolve material . Comparison: Conventional vs. Non-Conventional Non-Conventional Machining Overview | PDF - Scribd

  • Need for Non-Conventional: High strength alloys, ceramics, composites.