12/27/2024 8:55:31 AM	MACH 80A Course Outline as of Fall 2022	Changed Course
CATALOG INFORMATION
Discipline and Nbr:  MACH 80A	Title:  CNC MACHINE I
Full Title:  Computer Numeric Control Machining I
Last Reviewed:2/28/2022

Units		Course Hours per Week			Nbr of Weeks	Course Hours Total
Maximum	5.00	Lecture Scheduled	4.00		17.5 max.	Lecture Scheduled	70.00
Minimum	5.00	Lab Scheduled	4.00		8 min.	Lab Scheduled	70.00
		Contact DHR	0			Contact DHR	0
		Contact Total	8.00			Contact Total	140.00
		Non-contact DHR	0			Non-contact DHR Total	0

Total Out of Class Hours:  140.00

Total Student Learning Hours: 280.00

Title 5 Category:  AA Degree Applicable
Grading:  Grade Only
Repeatability:  00 - Two Repeats if Grade was D, F, NC, or NP
Also Listed As: 
Formerly: 

Catalog Description:

This course introduces students to theoretical and operational characteristics of the Computer Numerical Control (CNC) machine tools. Students will be introduced to the integration of Computer-aided Drafting (CAD), design, and programming for Computer-aided Machining (CAM) of machine parts on the CNC machine tools. Applicable to entry-level computer numeric control machine tools operators.

Prerequisites/Corequisites:
Course Completion or Current Enrollment in MACH 51.1A ( or MACH 51A)

Recommended Preparation:
Course Completion of CS 5

Limits on Enrollment:

Schedule of Classes Information
Description:

This course introduces students to theoretical and operational characteristics of the Computer Numerical Control (CNC) machine tools. Students will be introduced to the integration of Computer-aided Drafting (CAD), design, and programming for Computer-aided Machining (CAM) of machine parts on the CNC machine tools. Applicable to entry-level computer numeric control machine tools operators.

(Grade Only)
Prerequisites:Course Completion or Current Enrollment in MACH 51.1A ( or MACH 51A)
Recommended:Course Completion of CS 5
Limits on Enrollment:
Transfer Credit:CSU;
Repeatability:00 - Two Repeats if Grade was D, F, NC, or NP

ARTICULATION, MAJOR, and CERTIFICATION INFORMATION

Associate Degree:		Effective:		Inactive:
Area:
CSU GE:	Transfer Area			Effective:	Inactive:
IGETC:	Transfer Area			Effective:	Inactive:
CSU Transfer:	Transferable	Effective:	Spring 1995	Inactive:
UC Transfer:		Effective:		Inactive:
C-ID:

Certificate/Major Applicable: Both Certificate and Major Applicable

COURSE CONTENT

Student Learning Outcomes:
At the conclusion of this course, the student should be able to:

1. Write a program using General Function (G) & Miscellaneous Function (M) code

2. Identify basic CNC machining tools

 

Objectives:

At the conclusion of this course, the student should be able to:

1. Practice the safe use of tools and machines

2. Compare and contrast manual and CNC machine operations

3. Explain the relationship between the theory of CNC machine operation and machining processes

4. Generate two-dimensional geometric images for CNC machining projects using CAD software

5. Using a drafted image, write and interpret G&M code for machining a part on a CNC machine

6. Troubleshoot code for incorrectly machined parts

7. Calculate cutting speeds and feed speeds for various CNC machining operations

8. Select appropriate cutting tools for machining to CAD specifications

9. Diagnose basic problems faced in the operation of the CNC machines

Topics and Scope

I. Introduction

    A. Shop safety

    B. Print reading and working drawings

    C. Shop orientation and machine identification-facility layout

II. Basic CNC Operations

    A. Manual versus CNC operations

         1. Use

         2. Capabilities

         3. Theoretical and operational characteristics

    B. CNC Accessories

    C. Cutting tools

         1. Characteristics

         2. Design

         3. Machining parameters

    D. Production methods

III. Materials

    A. Types

    B. Properties

IV. CAD for CNC machines

    A. Design for manufacturing

    B. Generating a two-dimensional image

V. CNC Machining

    A. CNC theory

    B. Writing G&M code (programming) for the CNC machines

         1. Translating a 2-dimensional image into G&M code

         2. Troubleshooting code

    C. CNC operation

    D. Production methods

VI. Other CNC Programs

 

All topics covered in lecture and lab

Assignments:

Lecture-Related Assignments:

1. Weekly reading (10-15 pages)

2. Weekly quizzes

3. Midterm

4. Final exam

 

Lab-Related Assignments:

1. G&M code programs for machining a part from CAD drawings (5-10)

2. Performance evaluations of set-up and operating procedures for the CNC machines (5-10)

3. CAD exercises and production of 2-dimensional drawings for CNC machining (5-10)

4. Manufactured projects on the CNC machine from engineering drawings (5-10)

5. Organize workspace and clean-up lab area (professionalism)

Methods of Evaluation/Basis of Grade.

Writing: Assessment tools that demonstrate writing skill and/or require students to select, organize and explain ideas in writing.		Writing 5 - 5%
G&M code programs
Problem solving: Assessment tools, other than exams, that demonstrate competence in computational or non-computational problem solving skills.		Problem Solving 5 - 5%
G&M code programs
Skill Demonstrations: All skill-based and physical demonstrations used for assessment purposes including skill performance exams.		Skill Demonstrations 30 - 30%
Performance exams, lab projects
Exams: All forms of formal testing, other than skill performance exams.		Exams 50 - 50%
Quizzes, midterm, final exam
Other: Includes any assessment tools that do not logically fit into the above categories.		Other Category 10 - 10%
Professionalism

Representative Textbooks and Materials:

CNC Machining. Gizelbach, Richard. Goodheart-Willcox. 2009 (classic)

CNC Programming Handbook. 3rd ed. Smid, Peter. Industrial Press, Inc. 2007 (classic)

Instructor prepared materials

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