introduction to machining

NIKHIL R. DHAR, Ph. D.DEPARTMENT OF INDUSTRIAL & PRODUCTION

ENGINEERINGBUET BANGLADESH

Department of Industrial & Production Engineering 11/2

Course Outlines

Conventional Machining Turning and Related Operations Drilling and Related Operations Milling and Related Operations Shaping and Related Operations Grinding and Related Operations

Theory of Metal Cutting Cutting Tool Geometry Theory of Chip Formation Mechanics of Metal Cutting Tool Wear and Too Life

Non-conventional Machining Abrasive Jet Machining (AJM) Water Jet Machining (WJM) Ultrasonic Machining (USM) Electrochemical Machining (ECM) Electrical Discharge Machining (EDM) Laser Beam Machining (LBM) Electron Beam Machining (EBM)

Processing of Plastics Classification of Plastics Raw Materials Processing of Plastics

Injection MouldingExtrusion ProcessCompression MoldingBlow MouldingVacuum Forming

Selection of Manufacturing Processes on the basis of product characteristics and manufacturing economy


Suggested Reading

Materials and Processes in Manufacturing- E.P. Degarmo, J.T. Black & R.A. KohserFundamentals of Modern Manufacturing- M.P. GrooverProcesses and Design for Manufacturing- S.D.EI WakilManufacturing Processes for Engineering Materials- S. Kalpakjian & S. R. SchmidMetal Cutting: Theory & Practice - A. BhattacharyyaNon-Conventional Machining - P. K. MishraMetal Cutting Principles - M. C. ShawMetal Cutting - E. TrentManufacturing Technology – B. KumarProduction Technology (Manufacturing Processes)- P.C. SharmaProduction Technology- R.B. Gupta


Manufacturing

"Manufacturing" is a process for converting ideas and market or customer needs into artifacts; Includes design, procurement, test, finance, human resources, marketing, etc.Manufacturing is the conversion of raw materials into useful products

Creating shapes by various means and assembling these shapes into a useful product

The processes used to transform raw material into finished products A physical product always has a shape

FunctionAesthetics

These shapes are created by a wide variety of processes Students must remember that these processes exist only in the context of the

larger Manufacturing process


Manufacturing

Cu

sto

me

r n

ee

ds

People, money, machines and automation

Societal pressures, Government regulations, company plans and policies, etc

manufacturingRaw

material

Products


The manufacturing Process

MaterialTransformation

ProcessesRa

w

Ma

teri

al A

ssemb

ly

Pro

du

cts

Machines and Automation

Materials Science, Statics, Dynamics, Thermodynamics, Fluid dynamics


Engineering Materials


Fundamentals of Manufacturing

The method chosen depends on the material and the shape and properties required Formability Machinability Hardenability Castability Compactability Sinterability Weldability


Classification of Manufacturing Processes


Manufacturing

Manufacturing

Product Development and Design

MONEY GO AHEADMONEY GO AHEAD

Machine & Tool

Goal:Less Cost, Higher Quality, Faster Shipment

Non-conventional Machining:EDM, ECM, EBW etc.

Conventional Machining:Turning, Shaping, Drilling, Milling, Grinding, Broaching, Boring, etc.

Welding:Gas & Arc welding, Resistance welding, Thermit welding, Radiant energy welding

Forming:Forging, Rolling, Extrusion, Drawing etc.

Casting:Forging, Rolling, Extrusion, Drawing etc.

Tooling Production Planning

Men and Women Material

Cost Estimating

Market Survey &

Plan

From Stock Holders

PRODUCT

Original concepts, Design sketches, Working drawing, First model, Testing, Revised model and Production drawing etc

INSPECTION


THANK YOU FOR YOUR ATTENTION

introduction to machining

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