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Ces Edupack 2017 Download

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Ces edupack material selection 1. Advance Material and Manufacturing Technologies By Shobin John 1/10/2017 halmstad university, masters in mechanical engineering 2015. Shojoh15@student.hh.se 1 CASE1:Material Selection 2.

Ces Edupack 2017 Download CAMBRIDGE, UK, Feb 2, 2017 – Granta Design announced the release of the latest version of its leading materials education resource – CES EduPack 2017 – which is used at more than a thousand universities and colleges worldwide.

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Advance Material and Manufacturing TechnologiesByShobin John11/15/2015halmstad university, masters in mechanical engineering 2015. shojoh15@student.hh.se1

CASE1:Material Selection

MATERIAL WORLD

The material world serves a huge list of functions.The evolution was faster and the range of properties more varied.The birth of materials is dated back to the birth of the first invention , though it existed even beforeNew materials were invented with time and its applications variedFrom wheel to the ultra modern Nano-technology instruments material is vitalAshbys chart depicts the material invention and its usage over the years 11/15/2015halmstad university, masters in mechanical engineering 2015. shojoh15@student.hh.se2

CLASSIFICATION OF MATERIAL WORLDClassifying materials is vital for the ease of identification in practical applicationsPeriodic table was one great invention but not good enough as it does not include the whole list of engineering materials Ashbys classification of materials can overcome this drawback and is as depicted in the picture

11/15/2015halmstad university, masters in mechanical engineering 2015. shojoh15@student.hh.se3

/cod4-easy-account-17.html. SELECTION OF MATERIALSThe task of material selection can be simplified by its ordered classification into kingdom, family, class, subclass, member and attributes (Ashbys selection method)This can be used to arrive at a point specific from a diverse wideAn example is as depicted in the diagram

11/15/2015halmstad university, masters in mechanical engineering 2015. shojoh15@student.hh.se4

SELECTION TECHNIQUE and its structureThe myriad number of materials and its diverse properties, makes material selection process peccableCES EduPack is a software to overcome this dilemmaIt helps to identify the apt material from the material classification world. The structure of the software is as shown in the second figure

11/15/2015halmstad university, masters in mechanical engineering 2015. shojoh15@student.hh.se5

Ces Edupack 2018 Download

CES SOFTWARE AND TYPES OF CHARTS

CES software makes the material selection process less tediousA huge list of material properties and its applications are included in its databaseChart is the main tool used in this software for screening the choicesIt can be done making use of either the bubble chart or the bar chart as depictedComparison of the selected materials can be made through the graph based on the desired characteristics

11/15/2015halmstad university, masters in mechanical engineering 2015. shojoh15@student.hh.se6

MATERIAL SELECTION FOR PRODUCT DEVELOPMENT PROCESSDISC CLUTCHProject involves flywheel installed on bicycle and is named as Flywheel on bicycle.System requires a component clutch which is used to adjust the gear and flywheel.The engagement and disengagement for changing gear and flywheel is the function of clutch Importance was low to moderate as identified in the QFD

11/15/2015halmstad university, masters in mechanical engineering 2015. shojoh15@student.hh.se7

IDENTIFYING ATTRIBUTESPrimary feature being machinability and possessing high hardness.Price factor has to be low due to the relatively low importance shown from the QFD analysisAesthetically high will add valueHeat carrying capacity has to be moderately high to overcome friction and heat generation.Chemical inertness and recyclability can help in improving environmental aspects11/15/2015halmstad university, masters in mechanical engineering 2015. shojoh15@student.hh.se8

RANKING ATTRIBUTES AND GRAPH SELECTIONSL NOATTRIBUTES1MACHINABILITY2PRICE3SPECIFIC HEAT CAPACITY4RECYCLABILITY5ELECTRICAL PROP6TENSILE STRENGTH7HARDNESS

RANKATTRIBUTES1MACHINABILITY2SPECIFIC HEAT CAPACITY3PRICE4HARDNESS5RECYCLABILITY6TENSILE STRNGTH7ELECTRICAL PROP

Attribute ranking shows that the material has to be identified on the properties of hardness, specific heat capacity, machinability and priceFollowing graphs are selected for material selectionHardness vs. Specific heatPrice vs. Specific heatMachinability vs Price11/15/2015halmstad university, masters in mechanical engineering 2015. shojoh15@student.hh.se9

Ces Edupack 2019

Hardness vs. specific heat capacitythis graph is used for the primary screening of material as identified from the attribute rankingthe desired category is identified as the Hardness sectionthe materials have higher specific heat and hardness of the graph is assumed to serve the purpose and compared against the other graphs as identifiedAluminum alloy, high carbon steel and aluminum/silicon carbide composite are chosen to start with

11/15/2015halmstad university, masters in mechanical engineering 2015. shojoh15@student.hh.se10

PRICE vs. SPECIFIC HEAT CAPACITYTrivial importance of the component realizes the vital importance of the material costThe price range is chosen as shown as the desired categoryThis eliminates ALUMINUM/SILICON CARBIDE COMPOSITE which was chosen in the first graph as it costs around 5 USD/lb.ALUMINUM ALLOY and HIGH CARBON STEEL exist

11/15/2015halmstad university, masters in mechanical engineering 2015. shojoh15@student.hh.se11

MACHINABILITY VS PRICEThe final graph indicates CAST ALUMINUM ALLOY as the material to be selectedThough HIGH CARBON STEEL can be an alternative, the machinability aspect indicates that it cannot be aptFurther the recyclability, high melting point and service temperatures, electrical insulation and chemical inertness shows that CAST ALUMINUM ALLOY can be selected over HIGH CARBON STEEL and ALUMINUM/SILICON CARBIDE COMPOSITE

11/15/2015halmstad university, masters in mechanical engineering 2015. shojoh15@student.hh.se12

Final selection and alternativesMATERIALHARDNESSPRICEHEAT CAPACITYMACHINABILITYRECYCLECHEMICAL RESISTANCEELECTRICAL RESISTIVITYCAST ALUMINUM ALLOY60-150HV0.989-1.09USD/lb0.215-0.238BTU/lb.F4.5YESYES2.5-8ohm.cmHIGH CARBON STEEL400HV0.2USD/LB0.18BTU/LB,F3.5YESYES200MICROOHM.CMALUMINUM/SILICON CARBIDE COMPOSITE 70-140HV2.82-3.76USD/lb0.191-0.215BTU/lb.F1.7YESYES5-12ohm.cm

11/15/2015halmstad university, masters in mechanical engineering 2015. shojoh15@student.hh.se13

Ces Edupack 2017 Full Download

CONCLUSION: CAST ALUMINUM ALLOY WAS THE APT MATERIAL AS IT COVERED A WIDE RANGE OF DESIRED CHARACTERISTICS.Mechanical propertiesYoung's modulus10.4-12.910^6 psiShear modulus3.63-4.9310^6 psiBulk modulus9.57-10.410^6 psiPoisson's ratio0.32-0.36Yield strength (elastic limit)7.25-47.9ksiTensile strength9.43-56ksiCompressive strength7.25-47.9ksiElongation0.4-10% strainFatigue strength at 10^7 cycles4.64-22.8ksiMechanical loss coefficient (tan delta)1e-4-0.002 ALTERNATIVES:Suggestion 1: HIGH CARBON STEELReason: The table indicates HIGH CARBON STEEL to have a desired characteristics except machinability. aspect in context of the product. Suggestion 2: ALUMINUM/SILICON CARBIDE COMPOSITE Reason: The table indicates ALUMINUM/SILICON CARBIDE COMPOSITE to possess the highest electrical resistance and the moderate hardness. The price being on the higher end is a concern but can still be used where reliable is valued over price. 11/15/2015halmstad university, masters in mechanical engineering 2015. shojoh15@student.hh.se14