THY201 - Machining Theory

Outline information
Schools offering this subject
Last revision date May 25, 2020 12:58:35 AM
Last review date Aug 3, 2020 12:15:10 AM

Subject Title
Machining Theory

Subject Description
In order to manufacture parts efficiently, it is necessary to have an understanding of how to machine a wide variety of materials, using equipment commonly found in a machine shop.  This course complements THY101 and builds a solid theoretical foundation from which students may develop good machining skills and techniques.  Learning opportunities in this subject are derived from the Ministry of Training, Colleges and Universities In-school Curriculum.

Credit Status
Full credit status towards a college program

Learning Outcomes
Upon successful completion of this subject the student will be able to:

  1. Work safely in a metal machining environment.
  2. Identify methods to locate and machine holes to drawing specifications.
  3. Identify and select carbide inserts, cutting tools and holders.
  4. Identify, classify, and describe, physical and mechanical properties of metals.
  5. Specify and describe heat treatments using steel manufacturers recommendations, including hardening, annealing, normalizing, case hardening and tempering.
  6. Describe how surfaces are generated using Electrical Discharge Machining (EDM) Techniques.
  7. Describe basic plastic moulding/casting operations and equipment.
  8. Identify non-ferrous alloys.
  9. Perform required calculations for plain (simple) and angular indexing.
  10. Use reference texts to determine data required for machining operations.



Essential Employability Skills
Execute mathematical operations accurately.

Apply a systematic approach to solve problems.

Use a variety of thinking skills to anticipate and solve problems.

Locate, select, organize, and document information using appropriate technology and information systems.

Analyze, evaluate, and apply relevant information from a variety of sources.

Academic Integrity
Seneca upholds a learning community that values academic integrity, honesty, fairness, trust, respect, responsibility and courage. These values enhance Seneca's commitment to deliver high-quality education and teaching excellence, while supporting a positive learning environment. Ensure that you are aware of Seneca's Academic Integrity Policy which can be found at: Review section 2 of the policy for details regarding approaches to supporting integrity. Section 2.3 and Appendix B of the policy describe various sanctions that can be applied, if there is suspected academic misconduct (e.g., contract cheating, cheating, falsification, impersonation or plagiarism).

Please visit the Academic Integrity website to understand and learn more about how to prepare and submit work so that it supports academic integrity, and to avoid academic misconduct.

All students and employees have the right to study and work in an environment that is free from discrimination and/or harassment. Language or activities that defeat this objective violate the College Policy on Discrimination/Harassment and shall not be tolerated. Information and assistance are available from the Student Conduct Office at

Accommodation for Students with Disabilities
The College will provide reasonable accommodation to students with disabilities in order to promote academic success. If you require accommodation, contact the Counselling and Accessibility Services Office at ext. 22900 to initiate the process for documenting, assessing and implementing your individual accommodation needs.