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Comprehensive Assessment of CAD in Industries by Flóra Hajdu

This course assesses CAD skills through homework, tasks, and mid-term tests. Grading criteria and materials are specified, as well as the historical development and importance of CAD in industry. The evaluation components and weightage are clearly outlined.

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Comprehensive Assessment of CAD in Industries by Flóra Hajdu

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  1. Assessment,CAD Flóra Hajdu B406 hajdfl@sze.hu

  2. Content • Assessmentof course • CAD intheindustry Hajdu Flóra

  3. Schedule of course Hajdu Flóra

  4. Assesment • 2 homeworks (14+20) – 34% • 2 tasks on practical classes (2x3) – 6% • 2 mid-term tests (20 + 40) -60% Hajdu Flóra

  5. Homeworks • Successful homework is max. 14 and 20 marks • If the task can not be accepted (does not reach 50%), it can be re-done, but the maximum score is only 7 and 10 marks in this case. • Atleast 50% of the maximum 34 marks (ie 17 marks) should be reached, otherwise the mid-term mark will be inadequate (signature denied!) • Homework and re-done homework can only be submitted during the lecture period! • In case of delaytheachievedmarkswill be reduced! Hajdu Flóra

  6. Practicalclasstasks • Each task is worth 3 marks • Expected on the 5. week and 10. week. Hajdu Flóra

  7. Mid-termtests • Topics: CAD and drawing • Expected time 12. week, available score 20 and 40. • For the grade at least 50% of the maximum marks (ie. 10 and 20 marks) should be reached on each tests, otherwise the mid-term mark will be inadequate (1) • Inadequate test can be corrected with a re-test in the 14. week • The maximum score of the re-test is 50% (10 and 20 marks) • Inadequate mid-term test can be corrected with an exam during the examination period, but only if the other requirements (ie. 50% from the homeworks) are fulfilled. Hajdu Flóra

  8. Grade • 0 - 49 marks inadequate 1 • 50 - 60 marks adequate 2 • 61 - 70 marks average 3 • 71 - 80 marks good 4 • 81 - 100 marks excellent 5 Hajdu Flóra

  9. Obligatorymaterial • Obligatory material • Presentation slides • C. Jensen, J. D. Helsel, D. R. Short: Engineering Drawing&Design • Recommended material • Standards by IstvánHázkötő • HerczegIstván: SzerkesztésiAtlasz (in Hungarian) Hajdu Flóra

  10. Homepages • rs1.sze.hu/~hajdfl • https://mgt.sze.hu/content/index/id/6442/ Hajdu Flóra

  11. Software download • https://support.ptc.com/appserver/common/account/createAccount.jsp?tab=academic Hajdu Flóra

  12. CAD (Computer Aided Design) • CAD (Computer Aided Design): refersto a family of computer-basedtechnologiesthatareusedtocreate, analyse and optimizeengineering design • CAD programsprovide a graphicaluserinterface (GUI) that • allowstheusertocreate and manipulate of 2D and 3D geometry • Produceengineeringdrawings • Conductbasicenngineeringanalysissuchasmasspropertiescalculations • Visualizeindividualparts and complexassemblies Hajdu Flóra

  13. Development of CAD systems • 1960s: companiesintheautomotive and aerospaceindustriesstartedtouselargemainframe computer systems • 1970s: introduction of interactive computer graphicsterminals, first CAM (computer aidedmanufacturing) software • 1980s: more powerful PC-s basedon Intel processors, smallcomapnieswereabletoaffordnew CAD systems • 1990s: more advanced 3D CAD packagesusingsolidmodeling and NURBS (non-uniform rationalB-splines), CIM (Computer IntegratedManufacturing) and concurrentengineeringalsocameintouse • The integration of CAD intoengineering and manufacturingadvancedduetothedevelopment of high-speednetworking and the Internet • 2000s: advancedvisualizationsystemssuchasVirtualReality and more powerfulsystemsthat had better display systems and greatlyincreasedstoragecapacity • Development of CAD – development of CAM and CAE systems Hajdu Flóra

  14. CAD systems • CAD software permitsthe rapid exchange of design and manufacturinginformationregardless of wherethe team membersmay be located • Thisglobalview and theteamworkitrequiresarekeycharacteristics of manufacturing and design inthe 21st century • CAD systemsconsists of 2 major components: • Hardware: physicalcomponents of thesystem: computer system, graphics display, input devices, output devices, otherspecializedequipment • Software: CAD program, relatedsupportprogramsorutilities, operatingsystem Hajdu Flóra

  15. CAD programs • Inexpensive 2-D draftingprograms – more robust and expensivesystemscapable of sophisticated 3D modelingusingsolid and surfacemodeling • Autocad, Solidworks, CREO, Catia, etc. • Basedon a mousedrivenwindowsenvironment • Abilitytoextendthefunctionality of the software bycreating of aquiringspecialized software modules kép Hajdu Flóra

  16. CAD modeling • Geometricmodelsin 3D provideaccurateinformationontheshape of a part or assembly forusein CAE or CAM • Allmodelsareachievedusingbasic, underlying 2D and 3D elements • CAD allowsadditionalinformation (volume, surfacearea) to be easilydetermined • CAD allowseasyconstruction of orthographicviews, pictorialimagesordrawings

  17. CAD modeling CAD modeling Wire-FrameModeling Surfacemodeling Solidmodeling Useedges and vertices First and easiesttype Leastsuitableformanufacturing and engineering Allowsthesurfaces of a part to be accuratelyrepresentedasgeometricmeshes Automotive and aerospaceindustry Creates 3D geometricmodelswhoseinteriordetailsareunambigouslydefined Producepartsthatcan be manufactured

  18. ThankYouforYourattention!

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