MACH A121: Computations for Machinists
| Item | Value |
|---|---|
| Curriculum Committee Approval Date | 12/02/2020 |
| Top Code | 095630 - Machining and Machine Tools |
| Units | 3 Total Units |
| Hours | 54 Total Hours (Lecture Hours 54) |
| Total Outside of Class Hours | 0 |
| Course Credit Status | Credit: Degree Applicable (D) |
| Material Fee | No |
| Basic Skills | Not Basic Skills (N) |
| Repeatable | No |
| Grading Policy | Standard Letter (S) |
| Associate Arts Local General Education (GE) |
|
| Associate Science Local General Education (GE) |
|
Course Description
A course in applied technical computations for students in machine technology and CNC studies. Topics include basic computations, shop formulas and equations, and applied trigonometry as used in the machining industries. Transfer Credit: CSU.
Course Level Student Learning Outcome(s)
- Demonstrate proper use of TI 136, or similar calculator to perform basic calculations of addition, subtraction, multiplication and division.
- Calculate right triangle solutions to basic machining operations.
- Construct basic plane geometry figures using basic drawing tools:rulers, 30/60 triangles, 45 degree triangles, compasses and protractors.
- Manipulate algebraic formulas and equations common to shop problems.
Course Objectives
- 1. Demonstrate basic G codes for CNC machines.
- 2. Demonstrate basic M codes for CNC machines.
- 3. Demonstrate geometry of cutter paths for CNC milling machine work.
- 4. Demonstrate geometry of cutter paths for CNC lathes.
- 5. Demonstrate application of plane geometry to CNC tool motions.
- 6. Demonstrate use of the scientific calculator to perform trig functions.
- 7. Demonstrate trigonometry of the right triangles.
- 8. Demonstrate trigonometry of the oblique triangle.
- 9. Demonstrate basic shop formulas and their mathematical operations.
Lecture Content
Introduction Introduction to course Grading system Required materials Basic Computations and Calculations Addition subtraction Multiplication and division Fractions and decimals Percent Scientific calculator Applied Formulas and Equations What is an equation. What is a formula. Signed numbers Scientific and engineering notation Variables and constants Basic equations Order of operations Areas and volumes Formulas in machine tech Shop Geometry Points and lines Arcs and circles Planes Geometric theorems constructions Cylinders, cones, and spheres Applied Trigonometry Right triangles Pythagorean theorem Trig functions; sine, cosine, and tangent Scientific calculator and trig tables Oblique triangles Law of sines Law of cosines CNC Problems and Calculations Cutter path computations for lathes Cutter path computations for milling machines Cutter path compensation and calculations
Method(s) of Instruction
- Lecture (02)
- DE Live Online Lecture (02S)
Instructional Techniques
Instruction is through lecture and examples of work problems by the instructor with weekly homework assignments.
Reading Assignments
.
Writing Assignments
Writing proficiency is demonstrated by the reading assignments in the textbook. Homework reading assignments and work problems will be assigned at each class meeting.
Out-of-class Assignments
.
Demonstration of Critical Thinking
There will be a written mid-term and final exam and a series of short quizzes throughout the course.
Required Writing, Problem Solving, Skills Demonstration
Writing proficiency is demonstrated by the reading assignments in the textbook. Homework reading assignments and work problems will be assigned at each class meeting.
Textbooks Resources
1. Required Smith, Robert D.. Mathematics for Machine Technology, 5th ed. New York: Delmar Publications, 0 Rationale: -