Machines used in Metallurgy

Created Feb. 6, 2024 by Monica Wagner


ACP Lesson Plan
Title:
Impact testing Machines		Author:
Donald Repucci and Monica Wagner
Subject(s):  Engineering/Science
Grade Level(s):
6-8		Total Time:
4-5 class periods

Overview / Description:   This lesson is to introduce students to destructive (DT) and non-destructive testing (NDT) machines in the metallurgy and welding industry. The lesson will include the machines used for tensile, bending, harness, sparks, temperature, impact and (NDT). The larger unit goal is for student to design and build their own testing machine and do materials testing.

* Learning goals/objectives:

* At the end of this lesson students will be able to understand what the study of metallurgy is.

* At the end of this lesson students will be able to understand the difference between a DT and a NDT machine.

* At the end of this lesson student will be able to design and build their own machine.


After completing this activity, students should be able to . . .

* The students will be able to explain the difference between DT and NDT machines

* The students will be able to identify the components of a testing machine

* The students will be able to express the difference between the main kinds of stress

* The students will be able to recognize all major testing machines and tell their function

Workplace Readiness Skill: 

 x   Social Skills  x Communication 
x    Teamwork     x    Critical Thinking
 x  Attitude and Initiative  x  Planning and Organization
   Professionalism    Media Etiquette

Content Standards:

4C1.a.7.h: Develop original ways to solve a given problem.

4C1.a.8.h: Design a product or service that could fulfill a human need or desire.

C1.b.8.h: Work as part of a team to design a product or service that could fulfill a human need or desire.

4C1.b.9.h: Work as part of a team to improve an existing product or process. 

Educational Frameworks: 

* B-SMS 1. Demonstrate ability to assume responsibility

* B-SMS 9. Demonstrate personal safety skills

* B-SMS 10. Demonstrate ability to manage transitions and ability to adapt to changing situations and responsibilities


Materials: Link https://www.cteonline.org/curriculum/lessonplan/impact-testing-machines-cte/C3eUNC

Learning Activities:

* Charpy video    https://www.youtube.com/watch?v=tpGhqQvftAo

* Charpy worksheet   https://docs.google.com/document/d/1Mbf_VPlrsbb9sRUMKdH1ixyPKiuR0FuJt_O3i4ViL0M/edit

* Multiview drawing video  https://www.youtube.com/watch?v=Evqg0L4KMl8

* Lecture /Powerpoint  Powerpoint

*  Discussion questions  https://docs.google.com/document/d/1ivFbrNT1A_OXdOpnm1lgWS4xzn5Wp_vLqRNEnjQOO88/edit


WHO (T=Teacher Focus Lesson; WG=Whole Group\; SM=Small Group; I=Independent)

Learning Activity Task                                                WHO is responsible
for this step?		Approximate time
for task
Charpy Video
Watch the movie then discuss what they saw		WG10 minutes
Charpy Worksheet
Work through the Worksheet - Students work independently
then compare their answers with a partner.  They will regroup 
go over the answers as a group.		I/SGWG15 - 20 minutes
Multi-view Video - The teacher will play the video followed by a 
discussion on the video on what they saw and why this machine
may be needed or where it may be used.		WG10 minutes
3 view drawing video - The teacher will play this video followed by a 
discussion on the video.		Teacher15 minutes
Machine Gun game - The teacher will provide this game WG30 min

                    Discussion Questions - hand out the discussion sheet                                  WG                                30 min

                   and ask the students to answer the questions.  Talk through the 

                    questions as a class.



Charpy Impact Test

This video show the Charpy Impact Test used by metallurgists.

Assessment: 

* Demonstrations/Sketches of a self made machine, (Collect and grade the sketches. Use the attach rubric; When grading the sketches, make sure to deduct points for view not lining up. It is important that the students get use to the concept of always lining up views. They will be doing many sketches and drawing for this unit and they need to develop good habits early.

* Observations while working on machine

* Teacher-Made Test 

Wrap-Up:

* Vocabulary 

Metallurgy - the branch of science and technology concerned with the properties of metals and their production and purification.

Charpy Test - a standardized high strain-rate test which determines the amount of energy absorbed by a material during fracture.

Machine types:

* Destructive Testing machines - Destructive (DT) - tests are carried out to the specimen's failure, in order to understand a specimen's performance or material behavior under different loads. 

* Non-destructive testing  machines - (NDT) - a wide group of analysis techniques used in science and technology industry to evaluate the properties of a material, component or system without causing damage.


* Resource Link Resource Link


Extension Activity (for intervention or enrichment):

Guest Speakers from Foundry

Research Foundry and write a paper on what happens in that foundry and what kinds of jobs they offer

Tour a Foundry looking and comparing the different machines 

Foundry in a box idea:   https://www.afsinc.org/demonstrations-foundry-box

* Machine game -  (Machine game pictures)  (Machine gun Key)  

  • At the end of class, play the Machine Matching Game.
  • Teacher pre-cuts the pictures or has the students do it. They are to match the term to the kind of machine or stress.
  • If the team gets them all right they get to leave. If not, the teacher needs to work with them until they know the answer. Use the rubric for scoring
  • Machine game rubric -   Rubric

Creative Common License: Creative Commons License

Impact machines

 by 

Monica Wagner

 is licensed under a 

Creative Commons Attribution-NonCommercial 4.0 International License

.

ATTACHMENTS  

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