ME-330 Introduction

ME-330 Introduction

ME 330 Introduction Revision For the final exam Contact: [email protected] 1 Principles for the final exam 1. Examine your mastery of the concept/principle NOT those memory-based knowledge 2. Coverage: modules 1-10 3. Format of questions: quiz, assignment

2 Principles for the final exam Operating or working principle of a process: The knowledge that governs a phenomenon or process or procedure Physics Why a material is cut off or broken? How a water-jet cutter works to break or remove materials? Solid cuts solid, creating shear stress in one solid.

Water-jet cuts solid, creating shear stress in solid material. 3 Concept and principle (CP) list CP -1: manufacturing science, technology, process. Why: why is the material shaped. science How: how is the material shaped. technology What: what is the process to shape the material. process CP-2: classification of manufacturing systems. Criterion: parts processing and parts assembling

4 Course web to see 12 modules Concept and principle (CP) list CP -3: design, manufacturing, material relation design Recipe material resource manufacturing process to make CP -4: design for MM Design or make recipe such that the material and

manufacturing can be happy 6 Concept and principle (CP) list CP -5: cutting Principle of mechanical cutting (machining)

Principle of ECM Principle: knowledge that Principle of EDM governs phenomenon or behavior Principle of Laser cutting Principle of Water jet cutting Principle acts at different levels: Principle of Plasma cutting Physics Operation CP -6: welding 7

Concept and principle (CP) list CP -6: welding Two types of welding principles Principle I (fusion) Physics Principle II (solid state) 8 Concept and principle (CP) list CP -7: casting

Principle of casting Classification of casting Riser and its design Parting line or surface Draft DFM rule

9 Concept and principle (CP) list CP -8: plastic shaping Principle of the process to shape plastics Principle of the extrusion process

Die and extruder: characteristic curve Concept of the operating point Process to determine the operating point Process parameter, product parameter, and system parameter Process revision or optimization 10 Concept and principle (CP) list CP -9: powder metallurgy Principle of powder metallurgy Unique feature of power metallurgy DFM rule

CP -10: rapid prototyping Principle of rapid prototyping Unique feature of rapid prototyping 11 Concept and principle (CP) list CP -11: metal forming

Principle of metal forming Working principle for rolling Working principle for drawing Failure criterion Process design and optimization 12 Concept and principle (CP) list CP -12: machining Tool life Three major parameters to influence tool life and

quality of the work CP -13: tolerance determination Principle of determining tolerance Basic hole and basic shaft system Fit specification and representation 13

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