| 10/31/2024 5:15:23 PM |
| 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:
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Introduction to theoretical and operational characteristics of the Computer Numerical Control (CNC) machine tools. 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:
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Introduction to theoretical and operational characteristics of the Computer Numerical Control (CNC) machine tools. 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: | | |
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| CSU GE: | Transfer Area | | Effective: | Inactive: |
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| IGETC: | Transfer Area | | Effective: | Inactive: |
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| CSU Transfer: | Transferable | Effective: | Spring 1995 | Inactive: | |
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| UC Transfer: | | Effective: | | Inactive: | |
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| 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:
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1. Write a program using General Function (G) & Miscellaneous Function (M) code and safely run the program on a CNC machine
2. Explain the difference between G&M codes
3. Describe the types of turning tools used in CNC lathes
4. Describe the types of cutting tools used in CNC machining centers
Objectives:
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Students will be able to:
1. Practice the safe use of tools and machines
2. Compare and contrast manual and CNC machine operations
3. Relate the theory of CNC machine operation to 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
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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 vs. 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:
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Lecture-Related Assignments:
1. Reading, 10-15 pages per week
2. Quizzes; final exam
Lecture- and Lab-Related Assignments:
1. Write G&M code for machining a part from CAD drawing(s)
Lab-Related Assignments:
1. Performance exams: demonstrate proper set-up and operating procedure for the CNC machine
2. Complete CAD exercises and produce 2-dimensional drawings for CNC machining
3. Manufacture projects on the CNC machine from shop drawings
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
0 - 0% |
| None | |
| This is a degree applicable course but assessment tools based on writing are not included because problem solving assessments and skill demonstrations are more appropriate for this course. |
|
| Problem solving: Assessment tools, other than exams, that demonstrate competence in computational or non-computational problem solving skills. | Problem Solving
20 - 30% |
| Homework problems | |
| Skill Demonstrations: All skill-based and physical demonstrations used for assessment purposes including skill performance exams. | Skill Demonstrations
30 - 45% |
| Performance exams, lab projects | |
| Exams: All forms of formal testing, other than skill performance exams. | Exams
30 - 40% |
| Quizzes; final exam | |
| Other: Includes any assessment tools that do not logically fit into the above categories. | Other Category
5 - 10% |
| Professionalism | |
Representative Textbooks and Materials:
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CNC Programming Handbook. 3rd ed. Smid, Peter. Industrial Press, Inc. 2007 (classic)
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