Course Number and Title:
MET 225 Advanced Machining
Prerequisites
Prerequisite: MET 123 and EDD 131 and MET 133
Course Credits and Hours
3 credit(s)
2 lecture hours/week
4 lab hours/week
Course Description
This course introduces computer numerical control (CNC) programing, abrasive machining, surface finishing, non-traditional machining, metal heat treatment, metal casting, and bulk deformation processes. Students apply industry standard allowances and tolerances to design and manufacture assemblies with interfacing components.
Additional Materials
None
Core Course Performance Objectives (CCPOs)
- Use typical conventional and automated machine shop equipment to accurately manufacture parts and assemblies. (CCC 1, 2, 3, 4, 6; PGC 1, 5)
- Explain and identify different types of material surface finishes, drawing symbiology and measuring methods. (CCC 1, 2, 5; PGC 1, 5)
- Describe forming and shaping materials using casting and bulk deformation processes. (CCC 1, 5, 6; PGC 1, 5)
- Describe common heat treatment processes. (CCC 1, 2, 5, 6; PGC 5)
- Describe non-traditional machining processes. (CCC 1, 2, 5; PGC 5)
- Demonstrate application and interpretation knowledge of Geometric Dimensioning and Tolerancing (GD&T) standard American National Standards Institute (ANSI) Y14.5. (CCC 1, 2, 5, 6; PGC 1, 5)
- Determine the appropriate allowances and tolerances for fits using standard American National Standards Institute (ANSI) B4.1 (or B4.2 as applicable) for the manufacture of assembly project with mating parts. (CCC 1, 2, 5; PGC 1, 5)
See Core Curriculum Competencies and Program Graduate Competencies at the end of the syllabus. CCPOs are linked to every competency they develop.
Measurable Performance Objectives (MPOs)
Upon completion of this course, the student will:
- Use typical conventional and automated machine shop equipment to accurately manufacture parts and assemblies.
- Use conventional and automated milling machine to accurately produce a project
- Use conventional and automated lathe to accurately produce a project
- Program machining equipment to accurately manufacture parts.
- Explain and identify different types of material surface finishes, drawing symbiology and measuring methods.
- Define surfaces four identifying features of Roughness, Waviness, Lay and Defects
- Define Waviness - width and height
- Define Roughness - width and height
- Identify Lay surface patterns and associated symbols
- Apply industry standard roughness limits to physical surface finish
- Interpret the surface finish (roughness/texture) drawing symbols
- Measure surface textures with a comparator gauge and a stylus profilometer
- Describe forming and shaping materials using casting and bulk deformation processes.
- Describe the forging process and why it is used to manufacture specific components
- Describe the drawing process and why it is used to manufacture specific components.
- Describe the extrusion process and why it is used to manufacture specific components
- Describe the metal stamping process and why it is used to manufacture specific components.
- Describe the casting process and why it is used to manufacture specific components
- Describe common heat treatment processes.
- List the principles of heat treatment.
- Identify typical effects of heat treatment on selected materials.
- Explain terms associated with heat treatment methods such as hardening, tempering, annealing, and normalizing.
- Discuss surface hardening processes.
- Describe non-traditional machining processes.
- Identify characteristics of the following non-traditional machining processes:
- Chemical machining
- Electrochemical machining
- Electrical discharge machining
- Laser beam machining
- Water jet machining
- Demonstrate application and interpretation knowledge of the Geometric Dimensioning and Tolerancing (GD&T) standard American National Standards Institute (ANSI) Y14.5.
- Identify and interpret the GD&T mechanical engineering drawings and apply them to a part:
- Feature Control Frame (Box) and Modifier symbols
- Datums
- Describe and measure Geometric Tolerances of: Form, Orientation, Profile, Location and Runout in various applications
- Determine the appropriate allowances and tolerances for fits using standard American National Standards Institute (ANSI) B4.1 (or B4.2 as applicable) for the manufacture of assembly project with mating parts.
- Design and manufacture an assembly using a quality process.
- Describe basic size, nominal size, and tolerance.
- Describe clearance fit, interference fit, and transition fit.
- Determine the specific fit from a description.
- Use standard fit tables to calculate nominal and tolerance dimensions for mating parts.
Evaluation Criteria/Policies
The grade will be determined using the Delaware Tech grading system:
| 90-100 |
= |
A |
| 80-89 |
= |
B |
| 70-79 |
= |
C |
| 0-69 |
= |
F |
Students should refer to the
Catalog/Student Handbook for information on the Academic Standing Policy, the Academic Integrity Policy, Student Rights and Responsibilities, and other policies relevant to their academic progress.
Final Course Grade
Calculated using the following weighted average
Evaluation Measure | Percentage of final grade |
Summative Assessments |
Quizzes (Equally Weighted) | 40% |
Project 3 Drawings | 15% |
Project 3 Parts | 15% |
Presentation | 5% |
Formative Assessments |
The course will contain various formative assessments including but not limited to: Class participation activities In class projects Group work | 25% |
TOTAL | 100% |
Program Graduate Competencies (PGCs are the competencies every graduate will develop specific to his or her major)
- Safely utilize typical machine shop equipment and manufacturing techniques to accurately manufacture projects.
- Perform calculations of forces to size and select structural components and appropriate materials.
- Perform calculations of all parameters to size components related to various mechanical system designs.
- Interpret and produce good mechanical engineering drawings and effectively create solid models of parts and assemblies.
- Exhibit professional traits, including the ability to work with minimal supervision independently while contributing to team project, using effective problem-solving skills and make appropriate decisions relative to the technical field.
Core Curriculum Competencies (CCCs are the competencies every graduate will develop)
- Apply clear and effective communication skills.
- Use critical thinking to solve problems.
- Collaborate to achieve a common goal.
- Demonstrate professional and ethical conduct.
- Use information literacy for effective vocational and/or academic research.
- Apply quantitative reasoning and/or scientific inquiry to solve practical problems.
Students in Need of Accommodations Due to a Disability
We value all individuals and provide an inclusive environment that fosters equity and student success. The College is committed to providing reasonable accommodations for students with disabilities. Students are encouraged to schedule an appointment with the campus Disabilities Support Counselor to request an accommodation needed due to a disability. The College's policy on accommodations for persons with disabilities can be found in the College's Guide to Requesting Academic Accommodations and/or Auxiliary Aids Students may also access the Guide and contact information for Disabilities Support Counselors through the Student Resources web page under Disabilities Support Services, or visit the campus Advising Center.