Course Outline
The Material Testing/ CNC programming course introduces the student to numerous parts of engineering theory and practices used today at the college entry level. The course content is intended to set a general groundwork for the individual who intends to pursue an engineering discipline at a two or four-year institution.

Topics included in the Material Testing section of the course are the following: Testing Machines, Simple Stresses, Ferrous and Non-Ferrous metals, Stress Strain Theory, Moment of Inertia, Beam and Column Design, Expansion and Contraction principles and the use of internal pressure measurements.

Topics included in the CNC Programming section of the course are the following: Numerical Control and CNC, Axis and Coordinate systems, Machining Centers (Mills), Machining Center Tools, Inserts, Speeds, and Feeds, Machining Center Carbide Fundamentals, Programming Process for Machining Centers, Programming Codes for Machining Centers, Program Format for Vertical Machining Centers, Canned Cycles for Machining Centers, Turning Centers, Turning Center Tools, Inserts, Speeds, and Feeds, Programming Process for Turning Centers, Programming Codes for Turning Centers, Canned Cycles for Turning Centers, Subprograms, Electrical Discharge Machining.


Material Testing Topics
I- Testing Machines and Measuring Instruments - the different types of tests and testing equipment along with numerous types of specimens used in the engineering lab. Calipers (digital, Vernier and dial styles), strain gauges, scales, micrometer and Rockwell Hardness Testing Machine.
II- Simple Stresses - tension, compression, shear, torsion and combined stresses.
III- Materials - metals and non-metals, ferrous, non-ferrous, timber types and the numerous types of concrete used today.
IV- Stress/Strain - unit stress, unit strain, elastic limit, Hooke's Law, ultimate load, factors of safety(mechanical & architectural), safe working stresses and modulus of elasticity.
V- Centroids - geometric shapes, structural shapes and composite shapes.
VI- Moment of Inertia - uniform shapes, non-uniform shapes and extreme fiber materials.
VII- Section of Modulus - use of AISC manual to size beams, calculating S values with I/C. Sizing structural, built-up steel and timber shapes.
VIII- Simple Single Overhung and Double Overhung Beam Designing
(cantilever).Reactions, types of loading (concentrates, uniformly distributed), shear diagrams, zero shear, bending moment diagrams, M max. Beam formulas (for simple only), deflection for simple and cantilever beams.
IX- Column Design - radius of gyration, slenderness ratio, end conditions. Euler and Rankine formulas.
X- Riveting - types of riveting, advantages, types of joints, plate shear, plate tension, plate bearing, rivet shear (single and double) along with their efficiency.
XI- Welding - types of welding, advantages and types of weld joints. High strength and low strength welds.
XII- Expansion and Contraction - creep, "D" length and stress build up conditions.
XIII- Internal Pressure - longitudinal and transverse loads.


CNC and NC Programming Topics
I- Numerical Control and CNC- History and introduction of CNC
II- Axis and Coordinate system- Absolute and Incremental measuring systems, Cartesian coordinates as used on machining Centers and Turning Centers
III- Machining Centers (Mills)- Horizontal and Vertical Machining Center axes, work setups, Automatic Tool Changers, Tool length offsets, Tool radius offsets
IV- Machining Center Tools, Inserts, Speeds, and Feeds- Cutting tool materials, types and applications
V- Machining Center Carbide Fundamentals- Cutter types and mounting, negative and positive insert entry angles
VI- Programming Process for Machining Centers- Programming procedures, sequence of operations, tool lists, setup sheets, loading programs into a machine, program verification
VII- Programming Codes for Machining Centers- Prep codes, tool length compensation, miscellaneous codes
VIII- Program Format for Vertical Machining Centers- Writing a program without canned cycles, effects of codes
IX- Canned Cycles for Machining Centers- Recognize and define components of a canned cycle
X- Turning Centers- Two and four axis Turning Centers, Components, Operations, Work holding
XI- Turning Center Tools, Inserts, Speeds, and Feeds- Tool holder identification system, ANSI insert identification system, determine rpm, determine machining data using charts
XII- Programming Process for Turning Centers- Tool lists, cutting conditions, read and understand turning center programs, write turning center programs
XIII- Programming Codes for Turning Centers- G-codes, M-codes, offsets
XIV- Canned Cycles for Turning Centers- Recognize and define components of a canned cycle
XV- Subprograms- Advantages of subprograms, writing a program using subprograms
XVI- Electrical Discharge Machining- Operating principle, advantages and components of EDM