PracticalReport_MEM30007A_Task2_Student_190915-2
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5277C
Subject
Industrial Engineering
Date
Dec 6, 2023
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21
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STUDENT STUDENT - PRACTICAL ASSESSMENT TASK Task Number 2 of 3 . Task Name Practical Report National unit/s code MEM30007A National unit/s title Select Common Engineering Materials National qualification code 22228VIC National qualification title Advanced Diploma of Engineering (Civil) RMIT Program code C6162 RMIT Course code PROC5277C Section A - Assessment Information
Duration and/or due date: 60 minutes duration / 2 weeks after completion of the laboratory activity. Task Instructions Summary and Purpose of Assessment: This unit applies to technician level activities in manufacturing and engineering environments. Work is carried out under supervision. The purpose of this practical and report writing task is to: •
Identify common engineering materials by their principal properties •
Identify the principal properties of ferrous metals •
Select materials for specific application •
Verify selected material as fit for purpose Student instruction 1.
This is an individual laboratory-based assessment task to be conducted in the RMIT laboratory. 2.
You will be provided with a scenario of a simulated work environment. 3.
You are required to write the report using the format provided in Section B and answer the questions. 4.
You will be assessed according to the criteria outlined in the Section B Marking Guide. 5.
All criteria identified must be addressed to satisfactorily complete this Assessment Task. Conditions for assessment Instructions to Students: 1.
You must be observed undertaking this task by a qualified assessor 2.
Your assessor will negotiate a suitable time and location for assessment at least one week prior to the assessment taking place 3.
You must complete the task within the maximum allowed duration 4.
This is an individual task that you must complete with minimal support from others (allowed support would be questions related to the location of equipment needed) 5.
Please make arrangements with your assessor at least one week prior to the assessment due date if you feel you require special allowance or allowable adjustment to carry out this task
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STUDENT 6.
You must complete all the actions as listed in the observation checklist to the standard described in Section B to be deemed satisfactory in this assessment 7.
Please ensure your full and correct name is written on the student version of this assessment task (do not use nicknames or abbreviations) 8.
You will be assessed as satisfactory or not satisfactory 9.
You can appeal the assessment decision according to the RMIT Assessment Policy and Procedures Additional Instructions to Students: 10.
Performance requirement: a.
Satisfactory (S) performance –
satisfactorily complete ALL performance criterions and responses for questions b.
Not Yet Satisfactory (NYS) performance –
unable to satisfactorily complete one or more performance criterions. The result of being deemed competent in this course will only apply if the result is satisfactory (S) from all of the assessment tasks (all three). Instructions on submitting your Assessment Evidence Submission requirements:
Report is to be upload to Canvas through Turnitin Equipment/resources students must supply: Submission requirements:
•
Pen and paper •
Personal protective equipment Equipment/resources to be provided by RMIT or the workplace: •
Computer and RMIT Internet Access
•
Microsoft Office Suite
•
Workshop
•
Hard copies of the student version of this assessment task OR access to access soft copies
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STUDENT Tensile and Hardness Testing of a Ferrous alloy and the determination of whether the tested Material is fit for purpose Scenario and Background Information: The hip is one of the most important joints that supports our body, having the task of joining the femurs with the pelvis. The hip joint (Fig.1) is subjected to high daily stresses, having to bear the weight of the upper part of the body. Thus, especially with advancing age, these stresses can jeopardize its function. Since its first application, the development of design and materials of hip prosthesis continuously progressed. Several materials were used for this scope: glass, polymers, metal alloys, ceramics, composites, etc., trying to combine biocompatibility and fatigue resistance, stiffness, toughness, withstanding static and dynamic loads, and high resistance to mechanical and chemical wear
[1,
2
,
3
]. Fig. 1 Components of total hip replacement [5] The design limiting properties for the selection of hip joint materials includes: Stiffness:
Moderate elastic modulus of approximately 110 Gpa which leads to more physiologically sound stress distribution in the implant bone is required. The goal is to have less stress on the bone due to modulus of elasticity mismatch. The elastic modulus of Ti
–
6Al
–
4V (1.10 * 10 5
MPa) is closer to that of bone (1.4 * 10
4
MPA) than is cobalt
–
chrome (2.42 * 10
5
MPa) [4]. Strength:
During daily activities bones are subjected to the stress of about 4MPa. The peak load on hip joint during jumping time may be up to 10 times body weight. These stresses are repetitive and fluctuating depending upon the activity to be performed [5]. Wear resistance:
To avoid the release of wear particles into the body, since the release of potentially harmful metal ions such as aluminum (Al) and vanadium (V) from the Ti alloy has been reported to be associated with long term health problems such as peripheral neuropathy, osteomalacia and Alzheimer’s disease [7,8].
The Rockwell hardness C of Ti
–
6Al
–
4V is 36.
Your task 1.
You are presented by an orthopaedist with a hip joint implant which has fractured in its midsection after 15 years in a patient. Research what is the most likely cause for this failure? Using your knowledge to date would you expect a hip joint implant fracture to be more brittle or ductile like in character? Justify your answer.
Fig. 1.1 Fractured hip implants https://oatext.com/The-current-approach-to-research-and-design-of-the-artificial-hip-prosthesis-a-review.php [6]
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STUDENT 2.
Based on the above incident it has been agreed that the hip joint implant material used more than 20 years ago is not suitable for a femoral stem. You are provided with a rod specimen of a new material, and instructed to test and determine: a) the maximum stress possible to apply to this material before it fails for this application. b) the ultimate tensile strength for this material. c) the modulus of elasticity for this material. d) the hardness of the material. 3.
Analyze the test results and establish based on the known design limiting properties whether the new material is suitable for hip joint implants (i.e. fit for purpose).
References: 1. Merola M., and Affatato S. Materials for Hip Prostheses: A Review of Wear and Loading Considerations. Materials (Basel). 2019 Feb; 12(3): 495. doi: 10.3390/ma12030495 2. Aherwar A., Singh A.K., Patnaik A. Current and future biocompatibility aspects of biomaterials for hip prosthesis. AIMS Bioeng. 2015;3:23
–
43. doi: 10.3934/bioeng.2016.1.23. 3. Affatato S. In: Perspectives in Total Hip Arthroplasty: Advances in Biomaterials and Their Tribological Interactions. Affatato S., editor. Elsevier Science; Amsterdam, The Netherlands: 2014. 4. Shackelford, James F. Materials Science and Engineering Handbook Ed. James F. Shackelford & W. Alexander Boca Raton: CRC Press LLC, 2001 5. Ghalme S., Mankar A., and Bhalerao Y. Biomaterials in Hip Joint Replacement. International Journal of Materials Science and Engineering. 2016; Volume 4, Number 2. doi: 10.17706/ijmse.2016.4.2.113-125. 6.
Colic K, Sedmak K., The current approach to research and design of the artificial hip prosthesis: a review.
DOI: 10.15761/ROM.100010
7. Walker, P.R.; Leblanc, J.; Sikorska, M. Effects of aluminum and other cations on the structure of brain and liver chromatin. Biochemistry 1989, 28, 3911
–
3915. [CrossRef] [PubMed] 8. Rao, S.; Ushida, T.; Tateishi, T.; Okazaki, Y.; Asao, S. Effect of Ti, Al, and V ions on the relative growth rate of fibroblasts (L929) and osteoblasts (MC3T3-E1) cells. Bio-Med. Mater. Eng. 1996, 6, 79
–
86.
1.0
Introduction Materials are enablers. However, due to the complex interdependence between material structure, properties and manufacturing processes, the selection of materials which will ensure the integrity of the design, is by no means a straightforward task. The tensile test has become the basic test for determining the mechanical properties of materials and is used for the following purposes: (a)
To provide data for acceptance or rejection of a sample of a material on the basis of specified properties. (b)
To provide essential data for engineering design. (c)
To provide data on the likely behaviour of a material during fabrication processes The functions indicated in (b) and (c) above are only partially met by the tensile test since the shape of the component and the stress distribution may be quite different in practice from those operative during a tensile test. In the tensile test a specimen of standard shape and size on which a gauge length is marked is extended and the load measured. The data obtained may be represented on a load-extension curve. Since the load and extension are functions of specimen size as well as of material properties, the tensile test data are better represented by a stress-strain curve.
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STUDENT Assessment requirements 1.
You are required to perform the practical tasks below; 2.1, 2.2,2.3 and justify whether the tested material is fit for purpose. 2.
Fill out tables 1-5 on pages 8-10 of these practical notes. On separate pages, provide all calculations for the result sheets. This must be word processed using Microsoft equation editor. Attached pictures/photos of hand written calculations are not permitted. 3.
Answer the questions as described in section 3 in your report after the discussion section. 4.
Adhere to the marking guide and check list as shown at the end of this practical handout 2.0 Procedure 2.1 Part 1. Tensile Test Note: for all steps involving the mounting of specimens in the Instron tensile tester, and the use of the testing software, direct instruction will be provided by your demonstrator. 1.
Measure and record the diameter of the parallel reduced section of the sample provided with a vernier calliper. 2.
With a centre punch, very lightly
punch two marks at the extremes of the parallel reduced section onto the specimen, this will be the gauge length (Fig.2). 3.
Measure the distance between the two punch marks with a vernier caliper, noting this distance. 4.
Test your sample. 5.
Measure the elongation in gauge length by supporting both pieces of the sample in a 'Vee' block and measure the change in diameter at the neck of the break. 6.
Save the graph produced by the Instron Tensile testing machine. Fig.2 Typical tensile test samples https://guidebytips.com/tensile-test/
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STUDENT 2.2 Analysis and Calculations Elastic region
: the region OA in which deformation is reversible with respect to loading. Elastic limit or yield strength
: The point A, at which permanent deformation first occurs on loading. The measurement of point A depends on the sensitivity of the equipment used since some materials do not show a sharp line deviation from the straight line. Necking
: A localised decrease in cross-section, begins at C and because of this, extension continues at lower loads until fracture occurs at D. Note: units for stress (
)= N/m
2
, Pascals {Pa}, Strain (
) are dimensionless. Percentage Elongation: The percentage increase in gauge length at fracture. (The gauge length over which elongation is measured, assumed here to be the length of the narrowest part of the specimen. A
o
o
=
−
100
(
)
I
I
I
Ultimate Tensile Strength,
UTS : Obtained by dividing the maximum load (M) reached during the test by the original cross-sectional area (point C). UTS
Load
A
o
=
max
Percentage Reduction of Area: A
A
A
A
p
=
−
100
1
2
1
(
)
where A
1 = original area, A
2
= final area at fracture. Young's Modulus (E)
: is defined as
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STUDENT E
Stress
in
the
elastic
region
Strain
in
the
elastic
region
=
Yield Stress (
y
)
: is defined as load at the yield point
original cross section area This stress
y causes a sudden permanent extension. The yield point is difficult to detect in many nonferrous alloys. Normally, for ductile low carbon steel, a definite yield point will be visible. The lower value is used for the yield load and this value (N) is divided by the original area of the sample to determine yield strength in Pascals. Fig. 4. Stress-strain diagram for low carbon steel displaying a yield point https://guidebytips.com/tensile-test/ Proof Stress (0.1% or 0.2%):
In the absence of a sharply defined yield point a "proof stress", is defined which is the load at which a permanent extension (usually 0.2%) has taken place, divided by the original cross-sectional area. Where the line measured out at strain of 0.2% and parallel to graph cuts the graph, this is the 0.2% proof stress. Elastic deformation disappears when load is removed. Plastic deformation is permanent deformation. Note: A proof stress is always calculated from a graph drawn of the initial part of a load vs extension curve and it is required if the material being tested does not have a definite yield point. If you are required to calculate proof stress, then you do not have to calculate yield stress or yield strain and vice versa.
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STUDENT 2.3. Part 2. Hardness Test 1.
Take the samples and measure the hardness on the Rockwell B (HRB) using a load of 100 Kg or Rockwell C (HRC) using a load of 150 Kg
if the specimen is too hard for the B scale. Note that if you have a reading over 60 HRC to as high as 95 HRC then the loads are too high, use HRB instead. 2.
Calibrate the Rockwell hardness testing machine using a test block for HRC and record the results. 3.
Using HRB scale, take three readings and calculate the average, (rounding to the nearest whole value, i.e., an integer value). Hardness conversion chart: http://www.mesteel.com/cgi-bin/w3-
msql/goto.htm?url=http://www.mesteel.com/info/carbon/hardness_table.htm Use this chart as a guide only. Note: include a copy of the graph of results with your report. Tensile Testing of Ferrous Metal Specimen: Results Sheet a. Table 1. Initial and final measurements for the specimens Measurement Sample Material d
o
d
f
l
o
l
f
Original Diameter mm Final Diameter mm Original Gauge Length mm Final Gauge Length mm Ferrous alloy b. Note:
Copy Tables 1-5 and include these as formatted in this practical hand out and include these tables in your report. DO NOT INCLUDE THE NOTES 1-4 BELOW
. Notes: 1.
Loads are to be determined from supplied graph following tensile testing. 2.
For testing, if a yield point is observed, then derive a yield load. If no yield point is observed, then derive a proof load. A yield load cannot be determined if a yield point is not evident. 3.
If a proof load is determined, then a yield load is not required. Conversely, if a yield load is determined, a proof load is not required. W
rite “Not Required” and provide a reason in your discussion.
4.
Do not write in working out on these tables, rather, provide the working out (fully word processed using equation editor) in your appendix. If you do not prove FULL working out, your practical will not be assessed.
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STUDENT c. Table 2. Loads for the Ferrous metal specimen (taken from the graph of results) Sample Material F
y
F
proof
F
max
Yield Load (N) 0.2% Proof Load (N) Maximum Load (N) Ferrous alloy d. Table 3. Calculated results for the Samples Sample Material A
o
A
f
y
p
TS
%EL %A Original Cross-
sectional Area mm
2
Final Cross Sectional Area mm
2
Yield Strength MPa Proof Stress MPa Ultimate Tensile Strength MPa % Elongation % % Reduction in Area % Ferrous alloy
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STUDENT e. Table 4. Hardness Testing Calibration Results Calibration results Serial Number of Test Block: 150 kg, Diamond Indenter HR
C
Test 1 Test 2 Test 3 Average (integer value
1
) Table 5. Hardness Testing Specimen Results Sample Material Measurement Ferrous alloy HR
B
Test 1 Test 2 Test 3 Average (integer value
1
) 1
For example, if your results are 47, 47, & 48, the average integer
value would be 47, NOT
47.33333
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STUDENT 3.0 Answer the following questions
1. Establish based on the researched values, obtained through the experiment, whether the material is fit for purpose by: (i) Comparing the critical mechanical properties (e.g. Yield Strength, Hardness) with the design requirements. State the outcome in a tabular form- e.g. see table below.
(ii) Search the literature and suggest a ferrous alloy with mechanical properties closest to those of the tested sample.
(iii) Compare the mechanical properties obtained for the tested sample with those of the standard materials used currently for this application. Elaborate on the suitability of the tested material (150 words minimum).
Note: For the material to be fit for purpose, the researched mechanical properties determined in this experiment must be equal to or exceed the client’s
specifications. Experimental Results Design Requirements/client specifications Comment Yield Strength (MPa) Wear resistance Modulus of elasticity
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STUDENT 2. Would you consider the tested specimen ductile or not? Using the determined results after conducting this practical, what is your observational and mathematical evidence? Elucidate your response with a photo. 3. Discuss why the Rockwell system of hardness testing is more common place in industry compared with Vickers or Brinell? Give reasons, advantages and/or disadvantages. (1/2 page minimum)
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STUDENT 4. Find the Rockwell hardness’s (HR
B
B
or HR
C
) of the following items and quote your references (literature, i.e. RMIT Library or the Internet) after each question: a. Centre punch tip: b. H.S.S. (High Speed Steel) Twist drill: c. Inner and Outer race of a typical rolling element bearing (e.g. Ball Bearing): d. Typical plastic injection moulding die (Hardened condition): e. Automobiles steel coil spring following heat treatment (suspension): f. Punch and die for perforating mild steel (e.g. 0.2 - 0.25%C) suitable for at least 10,000 components (e.g. the die that is used to punch out a steel washer, not the hardness of the steel washer itself): Use the following texts for reference (found in RMIT Library): 1. Machinery’s Handbook.
2. Bearing Catalogs: e.g. SKF, NSK, Timken, FAG, KOYO. 3. ASM (American Society of Metals) handbooks. 4. Tool Design Handbooks.
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STUDENT Section B –
Observation Checklist & Marking Guide for Report Report format and requirements Reference: Guidelines for Writing Laboratory Reports (File name: ZOUEV 2018) as found under learning resources in Canvas
On the cover of your report you must have the title of the report, your name, student number, group, date due, actual date of submission (if the date is different to the due date), RMIT University and current logo, program name and code, course name and code, and the teacher of your class. Report examples and techniques: https://emedia.rmit.edu.au/learninglab/node/1143 Visit this web site to examine how to write a technical report. The report that you will write is generally structured in the following way: 1.
Title page (with all details as previously detailed) 2.
Contents page and page numbers 3.
Introduction (half to one page maximum) 4.
Aim of the experiment (from laboratory practical notes) 5.
Equipment used 6.
Procedure 7.
Results, including calculations (calculations may be included in an appendix), tabulating all your results, (including diagrams, graphs, tables, etc, where required) 8.
Discussion (one page minimum) 9.
Questions 10.Conclusion (quarter to half page maximum) 11.Appendices, (if necessary) 12.References You must include ALL the items above. You will be assessed for presentation, neatness, information, research. This report is to be word-processed and not hand written and must includes all calculations which must be created through your word processing software, e.g., Microsoft Office/Word. It cannot be hand written calculations, an image taken with a camera and then inserted into your report. Submitting assessments through Turnitin: https://www.rmit.edu.au/students/support-and-facilities/it-services-for-students/canvas/turnitin Assessment declaration: http://www1.rmit.edu.au/browse;ID=t4g7mbllxm3n Academic integrity: http://www1.rmit.edu.au/browse;ID=kkc202lwe1yv
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STUDENT Marking Guide: Activity Performance Criteria Satisfactory Response Presentation of the report: Layout: Appropriate information on cover page, use of page numbers, chapter page and heading, figure numbers, table/s identification as per Guidelines for Writing Laboratory Reports. N/A
Yes
No Introduction (1/2 -1 page): Refer to: Guidelines for Writing Laboratory Reports. Your introduction should indicate in general terms the design requirements that ferrous alloy has for it to be utilised widely in industry (PC 1.1 & 1.5). Furthermore, your introduction should indicate the effects of mechanical and thermal processes on the ferrous alloy principal properties of materials as it would be supplied to the end user (PC 2.1-2.3). Your introduction should indicate what appropriate tests (ASTM) are typically utilised to determine the properties as previously mentioned (PC 3.1) and that once test results are determine by appropriate personnel (PC 3.2) the results would be analysed, and material choices confirmed as being fit for purpose (PC 3.3). 1.1, 1.5, 2.1-
2.3, 3.1 -3.3
Yes
No Procedure (write exactly what was done/what you did to get your results): Refer to Guidelines for Writing Laboratory Reports. After consulting appropriate personnel (PC 3.2) your procedure should indicate what steps were taken to determine material properties (PC 3.1) such that it can be analysed (PC 1.1, 1.5). 1.1, 1.5, 3.1, 3.2
Yes
No Results: Your answers should indicate the actual measurements made on the specially prepared specimens (PC 3.3) and noted in the tables provided. The loads that the specimen experience throughout the tensile test should be read from the graph of results and noted in the tables provided (PC 3.3). Once the measurements and loads are determined as above, you are then required to determine the key mechanical properties of Yield and Ultimate tensile stress and ductility properties though industry standard calculations as has been documented in the calculations sections of this handout (PC 1.1, 1.5, 3.3).
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STUDENT The hardness values should be determined from the hardness test and noted into the tables provided (PC 3.3). Once you have answered these questions, you are then able to answer the aim of this report to determine if the material that is being tested by standardised tensile and hardness testing methods is fit for purpose in this industrial application as described in the scenario on page 3 of this handout. Calculations (tabulated) presented as per Guidelines for Writing Laboratory Reports. The following mathematical determination correctly determined: Initial and final measurements for the specimens: Loads for the specimens as interpreted from supplied graphs (Instron): Calculated results for the Samples as a result of tensile testing: Hardness Testing Results: 2.1, 3.3 3.1, 3.3 2.2, 3.3 1.5, 3.1, 3.3
Yes
Yes
Yes
Yes
No
No
No
No Discussion (One page minimum): The discussion must indicate: •
A discussion of how the samples were prepared prior to tensile testing, i.e. were the test samples made to a specification? If so, state the ASTM specification used. Your answer should indicate that the shape of the samples is determined by standard operating procedures (PC 2.3). •
A discussion of how the samples were mounted in the tensile testing machine. What was the method of clamping? Your answer should indicate the method of clamping utilised and the reasons why so (PC 3.1). •
A discussion of how the samples behaved during the tensile testing operation. What happened to the samples during the test? Your answer should indicate the observed mechanical properties (PC 1.1, 1.5) •
Linking the graphical results to mechanical behaviour during the test. Your answer should indicate the observed mechanical properties (PC 1.1, 1.5) and how these properties demonstrate fitness for purpose (PC 1.1, 1.5, 2.2, 2.3, 3.3) 1.5,2.1,3.1 2.2,3.2 1.1,1.5,2.3 1.1, 1.5, 2.2, 2.3, 3.3
Yes
Yes
Yes
Yes
No
No
No
No
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STUDENT Graph/s: Tensile test graph taken from the Instron Universal Testing machine. Identified and figure labelled as per Guidelines for Writing Laboratory Reports. Your graph will indicate the test results such that the properties of the material can be analysed (PC 1.1, 1.5, 2.1, 3.3) 1.1, 1.5, 2.1, 3.3
Yes
No Questions: For questions 1-3, answer these with respect to the analysis that you have undertaken and described in your discussion. Quote any references used external to the standards provided in this practical. Q1. Your answer should indicate detailed analysis and calculations to determine the standardised mechanical properties that has been discussed in the discussion section and your answer should indicate from the observed mechanical properties (PC 1.1, 1.5) how these properties demonstrate fitness for purpose (PC 1.1, 1.5, 2.2, 2.3, 3.3) Q2. Your answer should indicate detailed analysis and calculations to determine the ductility for mechanical properties that has been discussed in the discussion section and your answer should indicate from the observed mechanical properties (PC 1.1, 1.5) the evidence to determine how these properties demonstrate the ductility of this material. Comparison to published values from an external reference such as the references given on page 5-6 must be stated as this will indicate if fitness for purpose (PC 1.1, 1.5, 2.2, 2.3, 3.3) can be determined. Q3. Your answer should indicate the key advantages of the three hardness tests mentioned in the question. Provide a summary of advantages and disadvantages for these three test methods. (PC 2.1, 2.3, 3.1, 3.3) Q4. Your answers (a-f) should indicate an awareness of the general values of hardness as well as the mechanical properties of these common engineering items. By being aware, you will be able to demonstrate understanding of the typical applications of these common engineering items and how to determine whether materials satisfy design requirements, i.e., are “Fit for Purpose” (PC 1.1, 1.5, 2.2, 2.3)
1.1, 1.5, 2.2, 2.3, 3.3 1.1, 1.5, 2.2, 2.3, 3.3 2.1, 2.3, 3.1, 3.3 1.1, 1.5,2.2-2.3 1.1, 1.5,2.2-2.3 1.1, 1.5,2.2-2.3 1.1, 1.5,2.2-2.3 1.1, 1.5,2.2-2.3 1.1, 1.5,2.2-2.3
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Assessment
2/3 [ Date last updated
] Student practical assessment task
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STUDENT Conclusion (1/3-1/2 page): as per Guidelines for Writing Laboratory Reports. Restate key mathematical determinations (UTS, YS, etc.) as a summary. Your answer should indicate a summary of your recommendations based on the experimentally determined properties and after a comparison of the experimental properties a conclusion should be able to reached to deem this material is or is not fit for purpose (PC 1.1, 1.5 2.3, 3.3) 1.1,1.5, 2.3,3.3
Yes
No Overall
S
NYS Remember: Always write in third person and past tense. Do not say what to do, rather, say what you did. You must include all calculations as evidence to support your results. Include these in the appendix. Attached pictures/photos of hand written calculations are not permitted. DO NOT PLAGIARISE ANYTHING Mapping to Required Skills and Knowledge Your report will provide the evidence to confirm skills: •
Undertaking research (Introduction, Procedure, Results, Discussion - Analysis, Conclusion) •
Selecting and carrying out the tests appropriate to the material (Procedure, Results) •
Communicating –
documentation of the experiment, communication with peers •
Documenting –
submission of this report •
Planning and sequencing operations (Procedure section) •
Reading, interpreting and following information on written job instructions (Procedure section), specifications (ASTM), standard operating procedures (Scenario, Introduction) charts (Hardness tables) lists (Procedure section) and drawings (Specimen dimensions/shape).
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Assessment
2/3 [ Date last updated
] Student practical assessment task
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STUDENT Checklist for Report Writing List the actions to be completed
Do I have a cover sheet with all the information required about the practical, university and myself?
Do I have a contents page?
Have I included page numbers?
Are my chapter headings numbered? E.g. 1.0, 1.1, 2.0 etc.
Are all my figures/tables/diagrams/images numbered, identified and referenced?
Have I written my introduction that clearly informs the reader the history and reason for this practical report?
Does the introduction adequately inform the reader what this report is about and what to expect?
Have I written the aim of this project?
Have I included all details about the equipment required including the serial numbers/models numbers and details about calibration (photos/diagrams as required)
Have I written the procedure in third person past-tense that informs the reader all that we did in clear detail?
Have I included all 5 tables unaltered in format as found in the practical worksheet?
Have I entered the specimen sizes for before and after the experiment as required?
Have I read the graph correctly and entered the load values into Table 2?
Have I made reference to if there is an evident yield point as shown on the graph or results? If not, have I made a comment why proof load and stress is not required?
Have I calculated all required mechanical properties as per Table 3 and included correct units?
Have I checked the literature for a ferrous alloy with properties similar with my calculated mechanical properties?
Did I include the calibration details for the Wilson Rockwell testing machine including the test block results and serial number and entered them into Table 4?
Assessment
2/3 [ Date last updated
] Student practical assessment task
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STUDENT
Did I write the hardness calibration and the sample test results averaged as an integer?
Did I create the working out/calculation in Word using Equation Editor and include all calculations in the appendix as proof of the result values found in Table 3?
Have I read the ASTM-E8 as found in the learning resources to determine why the specimens used were made to the size they are?
Did I describe the method of work holding/clamping of the specimens Instron?
Did I discuss how the samples behaved during the tensile testing operation and what happened to the samples during the test?
Did I discuss how the graphical results link to the determined mechanical behaviour of the specimen after the test?
Have I included the paragraph of results and numbered, identified the graph?
Did I answer Question 2 by including my observations of the result and used mathematical proof by directly comparing my results to the client specifications?
Did I answer Question 3 in my own words and not plagiarise my reference source regarding the hardness testing to at least half page?
Have I found the expected hardness values for the items listed in Question 4 and provided direct references against each question?
Have I written my conclusion based around the introduction of my experiment and provided a concise summary of the key determinations made and included all calculated mechanical properties especially when compared to client specification?
Have I included a list of “real” references
in Harvard style?
Have I included all calculations made as evidence of the calculated values found in Table 3 in the appendix?
Am I confident that I have not plagiarised anything and that I have used correct referencing methods?
Is the TURNITIN similarity index less than 15%?
Assessment
2/3 [ Date last updated
] Student practical assessment task
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STUDENT Section C –
Feedback to Student Has the student successfully completed the task?
Yes No Feedback to student: Assessor Name (please print) Dr. B. Richards Date
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