MEGR 2180 Manufacturing Systems Lecture 1 PDF

MEGR 2180 Manufacturing Systems (and processes) Introduction  Contact Information Instructor Lutfi Taner TUNC Email: [email protected] Office: DUKE (DCH) 223 Office hours: TBA (Can be online for ease of reach) Teaching Assistant (TA)...

MEGR 2180 Manufacturing Systems (and processes) Introduction  Contact Information Instructor Lutfi Taner TUNC Email: [email protected] Office: DUKE (DCH) 223 Office hours: TBA (Can be online for ease of reach) Teaching Assistant (TA) Ahmed Asif Razin Email: [email protected] Teaching Assistant (TA) Arda Deniz GULMEZ Email: [email protected]  Engineering Mind 5 shapes are given below. Select the one which is different than the others in a way.  Answer If you selected B, congratulations you are correct The only shape which is formed by straight borders is in B Some of you may select C Because the only asymmetrical shape is in C. Thus C is correct, as well Similar case is valid for A, too It is the only shape without any vertices What about D ? It is the only shape having a straight border and an inclined border. Thus, D is correct, as well What do you think about E ? The only shape which is a projection of a euclidian triangle on a non-euclidian area. Thus, E is correct, as well  Answer This is not a common exercise in an engineering school ! So, do not only try to learn the «correct answer» There is not only one correct answer in practical life If you think that ‘there is only one correct answer’ You give up searching more (Roger von Oech, Author) As Albert Szent-Györgyi (Physiologist) says; ‘Invention is to think different while looking at the same thing with everyone'  Textbooks There are two textbooks: Manufacturing Processes for Engineering Materials, 5th or 6th edition, S. Kalpakjian & S. Schmid. Engineering Economic Analysis, 9th edition or higher, by D. Newnan, J. Lavelle, G. Eschenbach Edgar Dale – Learning Cone Spaced Repetition Framework of Semester  Today’s questions “If we ask the right questions, we can change the world with the right answers.” Ogwo David Emenike What is Manufacturing? What are types of production? What are types of manufacturing processes? Why DFM is important ? What is Concurrent Engineering? Macbook Pro - Unibody  Manufacturing Perception Reputation: Dumb, Dark, Dirty, Dangerous, Disappearing Reality: Creative, Clear, Clean, Careful, Crescive Economic Multiplier for Different Sectors of the U S Economy  Why is manufacturing important? https://www.mckinsey.com/featured-insights/americas/building-a-more-competitive-us-manufacturing-sector  Product Design and Concurrent Engineering Traditionally design and manufacturing activities have taken place sequentially. Design process requires a clear understanding of the functions and the performance expected of that product.  Product Design and Concurrent Engineering Concurrent or simultaneous engineering is a systematic approach integrating the design and manufacture of products. Improves all elements involved in the life cycle of the product.  Design for Manufacture, Assembly, Disassembly & Service Design for manufacture (DFM) integrates product design process with materials, manufacturing methods, process planning, assembly, testing, and quality assurance. Assembly is an important phase of the overall manufacturing operation.  Environmentally Conscious Design,Sustainable Manufacturing & Product Life Cycle Design for recycling (DFR) and Design for the environment (DFE) anticipates the negative environmental impact during initial stages of design. The basic guidelines for sustainable manufacturing: 1.Reduce waste of materials 2.Reduce use of hazardous materials 3.Proper disposal of all waste 4.Improve in waste treatment and in recycling  Environmentally Conscious Design,Sustainable Manufacturing & Product Life Cycle Product Life Cycle (PLC) Consists of the stages that a product goes through to its ultimate disposal and recycling Product Life Cycle Management (PLCM/PLM) It is defined as the strategies employed by the manufacturer as the product goes through its life cycle.  Product Life Timing introduction of new product depends on many factors: Replace previous product? Extend product range? etc Multiple new products before first product declines significantly lead to growth Companies must consistently strive to find new products if they are to survive in today's competitive environment.  Material Selection The following are the factors in selection of materials: 1. Material Substitution 2. Material Properties 3. Cost and Availability 4. Service Life and Recycling  Manufacturing Process In a process used for manufacturing “discrete parts”, a given “material” (usually shapeless or of simple geometry) is transformed into a “useful part”. This part usually has a complex geometry with well defined a) Shape, b) Size, c) Accuracy and Tolerances, d) Properties, and e) Appearance (Material and Surface Condition). Shape  Types of Production Job Shops: General purpose machines, small lot sizes (