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Homework answers / question archive / Assessment Brief *This document is for CU Group students for their own use in completing their assessed work for this module and should not be passed to third parties or posted on any website

Assessment Brief *This document is for CU Group students for their own use in completing their assessed work for this module and should not be passed to third parties or posted on any website

Mechanical Engineering

Assessment Brief

*This document is for CU Group students for their own use in completing their assessed work for this module and should not be passed to third parties or posted on any website. Any infringements of this rule should be reported to engagement@coventry.ac.uk

Module Title: Smart Manufacturing Technology

Module Code: 212EN

 

 

Assessment Type:

Coursework

Assessment Number:

                 1

Study Mode:

     FT

 

Weighting:

        60%

Submission Date:

01/04/2022

Submission Time:

18:00

Campus:

CUC,CUL,CUSC

 

 

 

 

Task:

Background

 

The aim of this assignment is to expose and equip students with theoretical and practical expertise in modern digital manufacturing. This assignment is portfolio-based, comprised of the following components:

  • CAD/CAM digital machining supported with demonstration
  • Project Report writing on the CAD/CAM digital machining process

 

This assignment represents 60% of the module grade and will be made available on Aula at the beginning of week 1 (07/03/2022), for a submission due date of (01/04/2022).

 

Requirement

  • Scientific calculator / calculation software (suggested: Excel, Mathcad Prime)
  • Knowledge of CAD 3D modelling and interpretation of 2D drawing
  • PTC Creo Parametric Educational Edition
  • PTC Creo Parametric Manufacturing module

 

 

Essential Reading

  • El-Hofy, H. A. (2014) Fundamentals of Machining Processes; Conventional and Non-conventional Process. 2nd ed. CRC Press. ISBN 13: 978-1-4665-7702-2

 

  • Groover, M. P. (2014) Automation, Production Systems, and computer-integrated manufacturing. 4th ed. Prentice Hall. ISBN - 9789332572492  

 

 

Assignment 1 General Instruction

 

You are a recently integrated manufacturing engineer at DigiMech Manufacturing, a Smart Manufacturing enterprise, which is expanding their business to incorporate multiple machining / manufacturing processes. Due to this, the manufacturing engineers have been divided in two teams, each addressing the planning and development of a product database and its machining processes involved for manufacturing it from a blank piece to the final part. If the last digit of your ID is even, you are part of the turning team; if the last digit of your ID is odd, you are assigned to the milling team. To be able to carry out this task, you must, first, convert the 2D drawing into a 3D model/part. Then, you will plan, elaborate and carry out the required machining processes on the 3D model/part. You are required to carry out the 3D modelling to the required BSI standard using PTC Creo. You are also required to define the conditions, resources and specifications for each of the machining processes deployed in the manufacturing of the part.

 

Figures 1 and 2 depict the approximate shape of parts that are produced as part of the company portfolio. The operations required have been defined by contractor CAD/CAM engineers of client companies. Irrespective of the part (and, therefore, the team you are assigned to), the operations involve a volume rough machining, drilling, engraving and a finish machining.

 

You are asked to represent the listed machining processes on your created 3D model/part, which is made of Inconel 718 nickel superalloy:

 

  • Face milling operation – the blank piece has 22.225 mm, or 7/8 inches, height (team milling only)
  • Volume roughing
  • Drilling of the holes/slots in the specified dimensions
  • Grooving (team turning only)
  • Engraving using your first name – or surname – and your student ID number as the information to be engraved on the created 3D model/part.
  • Finishing (profiling) operation

For each machining operation, you are required to specify:

  • Cutting parameters (feed – f or feed per tooth/insert – fz , depth of cut – ap , working engagement – ae , cutting speed – vc)
  • Cutting conditions (use of cutting fluid – specification and justification, tool lifetime, number of tools for completing the operation, total operation time – for each machining operation; total machining cycle time, total production cost per machined part)
  • Tool descriptive parameters (tool diameter, cutting edge angle, number of inserts, insert code)
  • Tool code (from a  tool supplier’s catalogue)

 

 

Figure 1: Part template for the turning team, with the dimensions based on the ID number.

 

 

 

 

 

 

 

 

 

 

 

 

Figure 2: Part template for the milling team, with the dimensions to be based on the ID number.

 

Very important guidelines that you must remember and adhere to:

  • You have to map your ID digits to either Fig. 1 or Fig. 2.
  • If working with Fig. 1, the groove width is the same as its diameter. If working with Fig. 2, your extrusion distance/depth for the 3D model/part must be 19.05 mm (3/4 in).
  • A zero digit in the student ID number should be replaced by 10 (being, therefore, the highest digit)
  • For Fig. 2, choose a magnification factor to multiply your digits, in order to keep the approximate shape of the part (and avoid distortion).
  • Figure 1 sections are symmetric.
  • For any of the figures, if one dimension yields an inconvenient geometry, feel free to adopt a modification factor (either for amplifying it or decreasing it). In doing so, ensure the steps are appropriately described in your report.
  • A batch of 500 units of the part you are designing is required.
  • Both parts feature a counter bore hole with the dimensions presented in Figure 3. The placement of the hole is of your choice.
  • As an engineer, you will have to define/research a few parameters for providing some of the estimates asked (e.g. CNC mill cost, total working hours per year, average hourly rate of a machinist, etc.).
  • You must provide a G-code for the entire manufacturing sequence of operations.
  • The word count for the report must not exceed 1500 words. Excluded in this word count are: Title page, List of Figures, Tables, References and Appendix sections.

 

 

Figure 3: Counter bore dimensions.

 

You are required to create a project report on the above contents. You must demonstrate your proposed machining operations by creating a recorded video, expected to last no more than 5 minutes. You are suggested to use one of the following tools:

  • Screencast-O-Matic
  • Sway
  • Power Point
  • Adobe Spark
  • Prezi
  • Microsoft stream
  • Tiny take
  • Nchsoftware

to illustrate, in brief steps, the digital manufacturing processes adopted in your assignment.

 

 

Marks will be awarded for 3D representation, machining process setup in your recorded video demonstration and report:

  • 3D Modelling & operation setup
  • Correct setup of PTC Creo when creating the 3D model from the 2D drawing using appropriate dimensional unit
  • Correct method of generating your dimensions       
  • Correct use of extrusion depth                                                   
  • Correct representation of all the features in 3D                                                  
  • Organisation and neatness of your 3D displayed view in its default format (isometric view)
  • Workpiece generation and setup
  • Correct selection of the machining operations and setup
  • Correct tool selection and setup
  • Generation of the material removal process
  • Generation of the tool path code
  • Generation of the G/M - code
  • Recorded video demonstration
    • Quality of recorded video
    • Clarity of voice and content
    • Cohesiveness and consistent of your illustration/demonstration with respect to the above bullet points
  • Project Report
  • Completeness of the information, neatness and clarity of the contents and abundant use of scientific / technical literature as a basis for the manufacturing plan

Submission Instructions

What you need to submit via Aula – Turnitin submission link:

  • 1 x electronic copy of your project report file in PDF or Word format (pdf format is preferred)

What you need to submit as a OneDrive:

  • 1 x electronic copy of your work – you may submit the recorded video link (ensure it is accessible by your lecturer) or a PowerPoint, if you have not used any of the suggested video production tools
  • 1 x electronic copy of your project report file in PDF or Word format, as a backup (pdf format is preferred)
  • 1 x electronic copy of the CAD files of your 3D part/model/component

 

 

Completion of this assessment will address the following learning outcomes:

 

1

Understand and evaluate classic manufacturing and advanced manufacturing techniques and principles

2

Analyse digital manufacturing concepts, cloud manufacturing principles, technologies and application

3

Apply CAD/CAM knowledge in digital manufacturing simulation

 

Submission Guidelines

There should be a title page which clearly identifies the following:

* Name and code of the module

* Title of the Assessment

* Assessment number  

* Word count

The word count identified includes quotations and citations. However, it does exclude the list of references and/or the bibliography and, unless specifically stated, encompasses a discrepancy of + or – 10%.

Late Submission

If you are not able to complete your coursework on time due to extenuating circumstances*, the ONLY way to receive an extension (up to 5 working days) or a deferral (anything longer than 5 working days) is to contact engagement@coventry.ac.uk

Extenuating circumstances are defined by CU as ‘genuine circumstances beyond your control or ability to foresee, and which seriously impair your assessed work’. Please note that you will need to provide third party evidence to support your reasoning for requiring an extension or deferral. Your course tutor is NOT able to approve an extension or a deferral. If you have not completed the official forms and had your request approved, your work will count as not submitted and receive a zero mark.

 

Guidance Notes and Considerations

Referencing

 

Access, Foundation, Year 1 and Year 2:

 

You should use APA 7th edition style of referencing.

Referencing guidance can be accessed on the Library’s LibGuides pages.

 

Use of Sources and Information:

You can access high quality, authoritative information via the library. Use LibGuides to access Locate, BibliU and research guidance.

Academic Writing Resources

There are a variety of academic writing resources available which can be accessed via LibGuides. These writing guides can help with different types of assessment as well as important writing skills needed for university.

Glossary of Assessment Terms for Assessment Writing – this is an a-z that covers the majority of terms used in assessment briefs, learning outcomes and feedback throughout the CU Group. If you would like any further support with your assessment, you can contact your Academic Writing Developer or visit the Academic Writing LibGuides page.

If you would like to book an Academic Writing appointment for support with your assessment, you can contact your Writing Developers:

CUC: learningservices.cuc@coventry.ac.uk

CUS: academicskills.cus@coventry.ac.uk

CUL Dagenham: academicwritingservice@cul.coventry.ac.uk

CUL Greenwich: awsgreenwich.cul@coventry.ac.uk

Academic Integrity Guidance

The best way to avoid academic misconduct is to follow appropriate academic and referencing conventions. Further guidance on academic integrity and conduct can be found using LibGuides.

Collusion between students (where sections of your work are similar to the work submitted by other students in this or previous module cohorts) is taken extremely seriously and will be reported to the Academic Conduct Panel. This applies to all coursework and exam answers. If you would like more guidance on understanding collusion, you can find it on LibGuides.

If an assessment suspected of involving a breach of academic integrity is found to display a marked difference in writing style, knowledge and skill level from that demonstrated elsewhere on the course, you may be required to undertake a Viva Voce in order to prove the coursework assessment is entirely your own work.

 

Proofreading of assessments by CU approved proofreaders is permitted. There is a list of approved proof readers along with guidelines for use. However, please remember that proofreading is a lengthy and detailed process for which there is a cost. If you decide to use a proofreader, please take this into account and contact them at least 10 days in advance of your assessment deadline. 

You must not submit work for an assessment that you have already submitted (partially or in full), either for your current course or for another qualification of this university, unless this is specifically provided for in your assessment brief or specific course or module information.

It is important to realise that as a student you should not submit all or part of an assessment for which you have already received academic credit, to be used for an assessment in a different module. Reusing your own work in this way is called self-plagiarism. Where you wish to refer to some of your own work you must reference it in the same way that you reference work by other people.

 

 

Criteria

90-100

1st

80-89

1st

70-79

1st

60-69

2:1

50-59

2:2

40-49

3rd

30-39

Fail

20-29

Fail

0-19

Fail

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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