ME 301 University of North Dakota Aerogels & Oil Spill Cleaning Paper & PPT I would like a paper and presentation on Aerogels. mostly interested in the cle

ME 301 University of North Dakota Aerogels & Oil Spill Cleaning Paper & PPT I would like a paper and presentation on Aerogels. mostly interested in the cleaning capacity of Aerogels. I am open to suggestions if you want to talk about different aspect of Aerogel. or bring up a different topic. Attached is an example PowerPointResponse Papers Each student will be required to submit one response paper towards the end of the semester.A list of due dates for the papers will be posted on Blackboard.If you have a conflict with your assigned date, contact me at least one week in advance to make alternate arrangements. The topic of the paper should be related to materials science but does not have to be a topic we have/will cover.Feel free to consult with me if you have questions about the appropriateness of your proposed topic (paper selection day Aug 30 and topic should be submitted by Sep 6 – 10 bonus points will be awarded on the completion of this deliverable).To prepare your response paper, choose a materials-related topic and locate at least two peer-reviewed reference (journal article, technical report, reference book, etc.) that is related to the topic.The reference cannot be our textbook or one of the reference texts listed on the first page of the syllabus (but these can be used to supplement the information). The paper should be 3 pages in length (1” margin, single-spaced, 12-point font) and should be in your own words of the reference article.In addition to summary which will include Figures and/or Tables as supporting information, the paper should have 4 well marked sections: ABET Rubric 4 4PI.1 Describe why the topic is of contemporary interest and what prompted you to select this topic from ethical and professional perspective?If you have any questions that were raised by the reference (or related textbook readings) include those in this section, as well. 4PI.2 What is the environmental effect of the selected topic? Give your critique regarding the environmental aspect of the technology. 4PI.3 What is the economic effects of the proposed topic in the paper? For example, it is a new promising technology with job generation potential from entrepreneurship aspect, or is it a established industry etc etc. 4PI.4 Why does this topic matter to Industry? What is the global impact of this industry… Complete citations for any resources you use to write the paper must be included at the end.Citations should follow the appropriate American Psychological Association (APA) format. Note that the source of an item such as a journal article is the journal in which the piece was published, not the database from which the article was retrieved. Submit the first page of the main outside references along with your response paper. Your response paper must be based on a peer-reviewed outside reference.Ask me if you are unsure if a given reference qualifies.Good sources of peer-reviewed references are the sciencedirect.com, SCOPUS and Engineering Village databases, available through the Chester Fritz Library website, http://library.und.edu/databases.Examples of sources generally not considered peer-reviewed include (but are not limited to) websites, newspaper articles, popular magazine articles and marketing materials.Papers based on non-peer-reviewed sources may be returned without a grade.Note that Engineering Village is sometimes temperamental with regards to off-campus access. Your response papers will be graded on grammar, spelling, formatting, technical content, and ABET requirement (see attached grading rubric).No late response papers will be accepted.Response Paper Presentations All the response papers are due on Dec 5. The date of presentation will be announced according to Alphabetical order. On the day that your response paper is due, you will be expected to give a short (5 minute) presentation on the topic of your response paper.You are expected to prepare approximately 5 Power point slides (not including the title slide) related to the topic to serve as visual aids for the presentation.The first slide (after the title slide) should give a brief personal introduction (where you are from, professional interests, etc.) with the remaining slides dedicated to the main topic.Professional dress is expected.You will submit hard-copies of the slides (they can be black and white, please print two or three slides per page – the can be printed front and back) along with your paper.Your final slide should contain 2 potential exam questions and answers from material that you discuss during your presentation.The instructor may select a number of the response topic test questions for the final exam.Please see the response paper presentation grading rubric on the following page. It is going to satisfy the requirement of ABET requirement Rubric 7P1. DEDP students – you are expected to prepare a presentation following the same format as the on-campus students.The presentation should be recorded via Tegrity in Blackboard and posted to the ME 301 site.Please contact me if you have questions about this.Your Powerpoint slide file should also be posted in Blackboard. 7PI.1 Demonstrate an awareness of what they need to learn 7PI.2 Identifying, retrieving, and organizing information 7PI.3 Understand, retain, and integrate new information Welcome to the future of manufacturing!
Very few products are now made out of the usual metals. Take the Eurocopter Tiger for
instance:
This Eurocopter Tiger helicopter, manufactured by Airbus, has it’s main rotor blades, tail rotor,
fuselage, etc… mostly made out of CFRP (Carbon fibre reinforced plastic). It’s the first all composite
helicopter developed. Has: 80% CFRP and Kevlar, 11% aluminum, and 6 percent titanium.
Manufacturing in the future seems to be focusing more on composites and hard to machine metals
like titanium; while severely reducing materials that were once the norm like aluminum.
One method to deal with hard to machine materials like Carbon Fiber is called
Electro-discharge-machining (EDM). This method requires a material that is either
semi-conductive (carbon fiber or ceramic) or relatively conductive to work. (Note:
certain materials like polymers this method does not work on!)
• Basic parts of an EDM unit consist of the electrode, which is usually graphite or copper based.
Other sections of an EDM include a (1) circulating dielectric fluid that the electrode has
between it and the material to be machined, a (2) guide or feeding unit for the EDM unit, an
(3) electrical power supply to energize the electrode, and (4) advanced digital microcircuitry to
send precise electrical pulses to the electrode unit. In addition for automation, (5) a servo
system is incorporated fed off G-code. This is part of the guide or feeding unit (2).
(1) The circulating dielectric fluid flushes out spherical particles produced and helps maintain
properties of the electrical pulse: current, voltage, pulse width, duration. It also cools the
material and quenches the arc produced. (2) The guide has to be automated to create the
optimum pulse distance at all times. The EDM digital circuitry feeds the servo with continual
feedback to always maintain optimum gap size for cutting at 50,000 electric pulses per second.
EDM can be of two types: Die Sinker EDM when you use a usually circular electrode (but can be
any shape) to create electric discharges between the electrode and workpiece. This can create
holes. A drill EDM is a die sinker that rotates the graphite or copper electrode. The other method
is called the Cheese cutter EDM. This is where a thin electrode wire usually made of bronze goes
around in a loop and creates pulse electrical discharges between itself and the material.
How does the EDM process work?
The digital circuitry sends out an electrical pulse which maintains a specific resistance between
itself and the material by the self-regulating electrical servo. The dielectric medium in turn
rapidly quenches the electric discharge. Electric erosion first occurs due to the pulse discharge.
The graphite or copper is the cathode (+) and workpiece is the anode (-). Disintegration of the
structure occurs due to the electron bombardment. This electron bombardment creates
hotspots in both materials, and the hotspots basically blow up and create spherical metal
particles. Both materials are eaten away. Both the electrode and material lose atoms off the
surface during the explosions of the hotspots caused by the electrons in the pulses.
How is the arc maintained?
A feedback system is used! A servo automatically feeds the carbon electrode into the material. It is
based off the principle of error-sensing feedback where if the spark gap is not optimal, the voltage,
current have changed from optimum, which cause an error correction signal to remedy this and
move the electrode to get the correctly calibrated voltage and current for optimum pulse width
and duration. The control which keeps the discharge gap optimal is called the discharge gap servo.
What materials does EDM work on?
Generally, any metal that is conductive will work on EDM electric principles. Hard metals like
titanium are conducive to the EDM method because they are harder than most drill bits. However,
the EDM principle also works with semi-conductive materials and many metallic ceramics, and
some composite and metal/composite materials. Materials such as Carbon Fiber, Titanium Matrix
Composites like TiC2, and Silicon Carbon SiC matrix composites can be readily machined with an
EDM machine.
The Beauty of EDM
Here are some of the benefits of using EDM: Can be used on very hard materials that cannot normally be machined
easily by normal methods. Since the EDM vaporizes metal rather than having to cut it, many metals or conductive
ceramics usually very difficult to use a drill or end cutter on become easily to machine. Material removal rate (ERR)
for EDM has more to do with digital pulse duration parameters and material conductivity than with actual material
hardness!
Below is a block of fully dense Solid Si-SiC foam that was conductive enough to be machined by EDM. In such cases
Kerosene is used as the dielectric fluid because continuous cracked carbon from working oil is generated on the
surface of the workpiece giving a constant carbon layer to provide electrical conductivity
The Beauty of EDM Part Two
Thin materials are difficult to machine due to the vibration and stress
that standard tool bits like drills, lathe bits and milling machine end
cutters induce upon them.
The Limitations of EDM can also be benefits
• CFRP is revolutionizing the aviation and world marketplaces.
• However, CFRP is constructed as a sandwich, where layers of carbon fiber are interspersed with
layers of plastic. These system means that you can only use the EDM process on the carbon
fiber layers between the plastic layers. So, it’s not viable for this method. However, you can use
EDM to machine high temperature metal composite molds to build all the parts in or you can
use EDM to machine molds for making sintered inserts for the core drill bits to drill vertically
through CFRP. So basically, if EDM can’t be used outright, it can be used to help make the
machines that are needed to make other machines.
Two Test Questions for ME 301 Class
1. Why can EDM be used on hard materials when other methods cannot be used? R: Electrical
erosion between a cathode and an anode creates hot spots which cause the material on both
sides to be blown away
2. Why can EDM be used on thin and delicate materials when other methods lead to severe
distortion? R: It does not create pressure on a material when you are machining it
A benefit of EDM: If EDM cannot be used directly on a material like CFRP to drill holes for
titanium rivets between sections, how can it be used in the manufacturing process for producing
CFPP? R: It can machine complex shapes that in turn can be used to mold the CFRP layers in
before going to an autoclave for curing.
In Summary
• Goal of presentation was to give an overview of the uses of EDM technology as
pertaining to the machining of conductive metallic-ceramics and hard metals.
• The basic overview given here will help one to have the basic knowledge
necessary to read further into EDM technology and understand the peer review
articles to a greater degree on such sites as ScienceDirect.
References
• Fabrication of micro holes in CFRP laminates using EDM. Journal of
Manufacturing Processes. Volume 31, January 2018, Pages 859-866
• Electrical Discharge Machining of PCD in Ultrapure Water. 18th CIRP Conference
on Electro Physical and Chemical Machining. By: Daisuke Yanagida, Hisashi
Minami, Koji Watanabe (Note: PCD stands for sintered polycrystalline diamond)
• Fabrication of polycrystalline diamond wheels by micro wire-EDM using a novel
pulse generator. 17th CIRP Conference of Electro Physical and Chemical
Machining. By: M-T. Yan, G-R. Fang, T-Y Liu, and J-R. Li
1 of 5
Disability Support Services:
If you need accommodations in this course because of a disability, if you have emergency medical
information to share with me, or if you need special arrangements in case the building must be evacuated,
please make an appointment with me as soon as possible. My office location and telephone number are
listed above. If you plan to request disability accommodations, you are expected to register with Disability
Services for Students, 180 McCannel Hall, 701-777-3425.
Notice of Nondiscrimination:
It is the policy of the University of North Dakota that no person shall be discriminated against because of
race, religion, age, color, gender, disability, national origin, creed, sexual orientation, gender identity,
genetic information, marital status, veteran’s status, or political belief or affiliation and the equal
opportunity and access to facilities shall be available to all.
Concerns regarding Title IX, Title VI, Title VII, ADA, and Section 504 may be addressed to Donna Smith,
Director of Equal Employment Opportunity/Affirmative Action and Title IX Coordinator, 401 Twamley
Hall, 701-777-4171, und.affirmativeactionoffice@UND.edu or the Office for Civil Rights, U.S. Dept. of
Education, 500 West Madison, Suite 1475, Chicago, IL 60611 or any other federal agency.
Brief Information about reporting
Any student who has been impacted by sexual violence (sexual assault, domestic violence, dating
violence, stalking) or gender-based misconduct is encouraged to report and seek appropriate resources on
campus. Please contact the Title IX Coordinator (Donna Smith, donna.smith@und.edu or
4171) to discuss your options. To view the policy and additional resources, please
visit:http://und.edu/finance-operations/university-police/sexual-violence-programs.pdf
701-777-
How to seek help when in distress
We know that while college is a wonderful time for most students, some students may struggle. You may
experience students in distress on campus, in your classroom, in your home, and within residence halls.
Distressed students may initially seek assistance from faculty, staff members, their parents, and other
students. In addition to the support we can provide to each other, there are also professional support
services available to students on campus through the Dean of Students and University Counseling Center.
Both staffs are available to consult with you about getting help or providing a friend with the help that he
or she may need. For more additional information, please go to http://und.edu/und-cares/.
Exam Policy:
It is ME departmental policy that all students (DEDP and on-campus) complete exams on the date specified
by the course instructor. The topic list shows the expected exam timing, but there could be adjustments
based on the pace of the course. Students should expect no less than one week’s notice if the exam dates
on the topic list change. Requests for individual exceptions to a specified exam date must be made to the
course instructor with enough lead time ahead of the exam to allow for due consideration.
ABET Outcomes:
This course addresses the following educational outcomes of the Accreditation Board for Engineering and
Technology (ABET):
2 of 5
ABET Rubric 4 and 7:
4PI.1 Demonstrate an ability to make informed ethical and professional choices.
4PI.2 Understand environmental effects of engineering solutions
4PI.3 Understand economic effects of engineering solutions
4PI.4 Understand Global effects of engineering solutions.
7PI.1 Demonstrate an awareness of what they need to learn
7PI.2 Identifying, retrieving, and organizing information
7PI.3 Understand, retain, and integrate new information
Homework
Homework assignments are expected to be neat and easy to follow. Use of ruled engineering paper is not
required, but I reserve the right to penalize any sloppy or hard-to-read assignments. Any computational
problems must show all work for full credit. Units should be included and standard conventions for
significant figures (precision) should be followed.
Homework due dates are either listed on the topic sheet or will be announced in class. Assignments are
due by 5PM. All the HWs should be submitted though Black Board by 5PM for full credit (or electronically
through Blackboard – DEDP only). Any late assignments will be assessed a penalty of 20% per business
day or portion thereof. Mitigation of the late penalty may be possible if prior (i.e. before the due date/time)
arrangements are made with me. Collaboration with other members of the class on homework assignments
is encouraged. However, each student should turn in an assignment that accurately reflects their own
efforts. Identical assignments (in whole or in part) may result in no credit for all involved. Repeat
offenders may be given an ‘F’ for the course.
Solutions to the HW problems will generally be posted approximately one week after the assignment is due
(sometimes sooner, depending on exam timing). No HW will be accepted once solutions have been posted.
Response Papers
Each student will be required to submit one response paper towards the end of the semester. A list of due
dates for the papers will be posted on Blackboard. If you have a conflict with your assigned date, contact
me at least one week in advance to make alternate arrangements.
The topic of the paper should be related to materials science but does not have to be a topic we have/will
cover. Feel free to consult with me if you have questions about the appropriateness of your proposed topic
(paper selection day Aug 30 and topic should be submitted by Sep 6 – 10 bonus points will be awarded on
the completion of this deliverable). To prepare your response paper, choose a materials-related topic and
locate at least two peer-reviewed reference (journal article, technical report, reference book, etc.) that is
related to the topic. The reference cannot be our textbook or one of the reference texts listed on the first
page of the syllabus (but these can be used to supplement the information).
The paper should be 3 pages in length (1” margin, single-spaced, 12-point font) and should be in your own
words of the reference article. In addition to summary which will include Figures and/or Tables as
supporting information, the paper should have 4 well marked sections:
ABET Rubric 4
3 of 5
4PI.1 Describe why the topic is of contemporary interest and what prompted you to select this topic
from ethical and professional perspective? If you have any questions that were raised by the reference
(or related textbook readings) include those in this section, as well.
4PI.2 What is the environmental effect of the selected topic? Give your critique regarding the
environmental aspect of the technology.
4PI.3 What is the economic effects of the proposed topic in the paper? For example, it is a new
promising technology with job generation potential from entrepreneurship aspect, or is it a
established industry etc etc.
4PI.4 Why does this topic matter to Industry? What is the global impact of this industry…
Complete citations for any resources you use to write the paper must be included at the end. Citations
should follow the appropriate American Psychological Association (APA) format. Note that the source
of an item such as a journal article is the journal in which the piece was published, not the database
from which the article was retrieved.
Submit the first page of the main outside references along with your response paper.
Your response paper must be based on a peer-reviewed outside reference. Ask me if you are unsure
if a given reference qualifies. Good sources of peer-reviewed references are the sciencedirect.com,
SCOPUS and Engineering Village databases, available through the Chester Fritz Library website,
http://library.und.edu/databases. Examples of sources generally not considered peer-reviewed include (but
are not limited to) websites, newspaper articles, popular magazine articles and marketing materials. Papers
based on non-peer-reviewed sources may be returned without a grade. Note that Engineering Village
is sometimes temperamental with regards to off-campus access.
Your response papers will be graded on grammar, spelling, formatting, technical content, and ABET
requirement (see attached grading rubric). No late response papers will be accepted.
Response Paper Presentations
All the response papers are due on Dec 5. The date of presentation will be announced according to
Alphabetical order. On the day that your response paper is due, you will be expected to give a short (5
minute) presentation on the topic of your response paper. You are expected to prepare approximately 5
Power point slides (not including the title slide) related to the topic to serve as visual aids for the
presentation. The first slide (after the title slide) should give a brief personal introduction (where you are
from, professional interests, etc.) with the remaining slides dedicated to the main topic. Professional dress
is expected. You will submit hard-copies of the slides (they can be black and white, please print two or
three slides per page – the can be printed front and back) along with your paper. Your final slide should
contain 2 potential exam questions and answers from material that you discuss during your presentation.
The instructor may select a number of the response topic test questions for the final exam. Please see the
response paper presentation grading rubric on the following page. It is going to satisfy the requirement of
ABET requirement Rubric 7P1.
DEDP students – you are expected to prepare a presentation following the same format as the on-campus
students. The presentation should be recorded via Tegrity in Blackboard and posted to the ME 301 site.
Please contact me if you have questions about this. Your Powerpoint slide file should also be posted in
Blackboard.
7PI.1 Demonstrate an awareness of what they need to learn
7PI.2 Identifying, retrieving, and organizing information
4 of 5
7PI.3 Understand, retain, and integrate new information
Final Exam
The final exam will be comprehensive (and hard).
ESTIMATED SCHEDULE OF TERM PAPER SUBMISSION PRESENTATION/SUBMISSION
5 of 5
Guidelines for Response Paper Grading Sheet
Clearly explains section 4PI.1
/10
Clearly explains section 4PI. 2
/10
Clearly explains section 4PI. 3
/10
Clearly explains section 4PI.4
/10
Formatting (1” margins, singled-spaced, 12-point
font, consistent font throughout) (4PI.1)
/2
Length (3-4 pages) (4PI.1)
/2
Reference list (follows APA formatting) (4PI.1)
/2
Proper spelling and grammar (4PI.1)
/2
Summary is clear, easy to follow, tells a complete story with an
introduction, main body, and conclusion) (4PI.1)
/2
/ 50
Guidelines for Response Paper Presentation Grading Sheet
Good eye contact (Section 7PI1.1)
/2
Good voice projection (Section 7PI1.1)
/2
Professional dress (Section 7PI1.1)
/2
Appropriate length (5 ± 0.5 minutes) (Section 7PI1.1)
/2
Visual aids (~5 slides, good use of graphics and text, proper spelling and grammar)
/2
(Section 7PI.1)
Visual aids (Proper condensation of technical and scientific content with in the stipulated time)
Section 7PI.2)
/10
Response to audience questions (Section 7PI1.3)
/5
Submission of 2 potential exam questions w/ answers (Section 7PI1.3)
/5
/ 30

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