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Contents Introduction to Engineering Technology  National Academies Report: Engineering Technology in the United States Definition of Engineering Technology Differences between Engineering and Engineering Technology Overview of Engineering Technology Fields Career Opportunities in Engineering Technology Can an Engineering Technology Major Become a Professional Engineer (PE)? Prepare for Engineering Technology  Code Camp  Code Camp – Day 1 Code Camp – Day 2 Code Camp – Day 3 Code Camp – Day 4 Code Camp – Day 5 Code Camp – Day 6 Code Camp – Day 7 Code Camp – Day 8 Code Camp – Day 9 Code Camp – Day 10 E-Day – SME Challenges ET Curriculum and Lecture Notes  Course Notes – Computer-Aided Design (Siemens NX) 4472  Semester Project NX Unit 1 NX Unit 2 NX Unit 3 NX Unit 4 NX Unit 5 NX Test 1 NX Unit 6 NX Unit 7 NX Unit 8 NX Unit 9 NX Unit 10 NX Test 2 NX Unit 11 Course Notes – CNC and Computer-Aided Manufacturing Course Notes – Engineering Graphics Course Notes – Manufacturing Processes I  Machining Lab Videos  Part 1 – Safety in the Machine Shop Part 2 – Machining the Handle (Part A)  Machining Lab – Sawing Machining Lab – Layout Machining Lab – Center Drilling Machining Lab – Straight Turning Machining Lab – Knurling Part 3 – Machining the Handle (Part B)  Machining Lab – Turning a Shoulder Machining Lab – Face, Chamfer, Thread, Form Turning Part 4 – Machining the Hammer Head  Machining Lab – Band Sawing, Facing, Milling, Drilling, Tapping Course Notes – Manufacturing Processes II Course Notes – Quality Improvement Course Notes – Statics and Strengths of Materials Course Notes – Tool Design Senior Projects  Current Project Proposals  STEM HUB Management System XRP Lift Mechanism and Carrier Design Pet Stain Detector Water Tank Process Control Demo Brew System Automation Mobile Robot Web Controlled Arm Bathroom Scale with Pulse Ox Pothole Mapper Pond Drum Skimmer Embedded RFID Tags in Pool Cues Dynics OT Network Solution for Automation and Robotics Lab VEX U Robotics Competition SICK Lidar Competition Benchtop Shear with Fence TECH 1411 Lab Project Development Vanguard – Optimized Future in Consumer Products Avery Dennison RFID Project Fundamentals of Engineering Technology  Basic Shop Math Mathematics for Engineering Technology Physics for Engineering Technology  Fundamental Quantities Chemistry for Engineering Technology Statics and Dynamics Electrical Fundamentals  Circuit Analysis Electronics  Electronic Components  Resistors Engineering Design Graphics  The Engineering Design Process  Design Constraints  Functional Constraints Safety Constraints Quality Constraints Manufacturing Constraints Timing Constraints Economic Constraints Ergonomic Constraints Ecological Constraints Aesthetic Constraints Life-Cycle Constraints Legal and Ethical Constraints Engineering Design Assumptions Design Methodologies  Concurrent Design Design for Manufacturing (DFM) Design for Assembly (DFA) Risk Mitigation through Design  FMEA – Failure Modes and Effects Analysis Intellectual Standards and Engineering Design Documentation  Clarity Accuracy Precision Depth Breadth Relevance Significance Objectivity Logic Drawing Instruments  Pencils and Lead Paper  Folding Engineering Drawings Drawing Boards and T-Squares Compasses Dividers Triangles Scales Erasers Protractors Dry Cleaning Pad Drafting Brush Eraser Shield French Curve Drafting Tape Circle and Shape Templates Line Conventions and Lettering  Lettering Width and Types of Lines Visible Lines Hidden Lines Section Lining Center Lines Symmetry Lines Dimension, Extension, and Leader lines Cutting Plane Line Geometric Construction  Geometric Solids  Tetrahedron Octahedron Dodecahedron  Euclid’s Development of the Dodecahedron Graphical Projection Systems  Parallel Projection  Axonometric Projection  Isometric Projection Dimetric Projection Trimetric Projection Oblique Projection Orthographic Projection  Third-Angle Projection First-Angle Projection Miter Line Perspective Projection  Single-Point Perspective Two-Point Perspective Three-Point Perspective Dimensioning  Fundamental Dimensioning Rules  Inch Vs. Millimeter Dimensioning Differences Chart Rules for Dimension Lines Rules for Extension Lines Rules for Leader Lines (Leaders) Reading Direction Reference Dimensions Geometric Dimensioning and Tolerancing (GD&T)  General Tolerances Form Tolerances  Roundness or Circularity Straightness Ordinate Dimensions Working Drawings  The Importance of Working Drawings as Legal Documents Types of Engineering Drawings  Tabulated Drawing Multiview Drawings Graphical Calculators and Nomograms  Slide Rule Alignment Graph (Nomogram) Logarithmic Nomogram – Multiplication CAD – Siemens NX  NX Tutorials  NX Tutorial Video 1 – User Interface NX Tutorial Video 2 – Drafting Workflow NX Tutorial Video 3 – Expressions Editor NX Tutorial Video 4A – Sketch & Revolve NX Tutorial Video 4B – Datums and Features NX Tutorial Video 4C – Pattern Feature NX Basic Modeling Workflow  NX Master Model Concept NX Units – Important Note Design Intent Parametric Modeling NX View Controls  NX Layers NX Part Navigator NX Sketch Task Environment  NX Sketch Color Codes NX Measure Tool NX Expressions Editor Associative Copy Commands  Extract Geometry NX Assemblies  NX Exploded Views NX Extraction Path NX Part Families NX Curves  NX Law Curves  Roots Blower Profile Gear Generator Model NX Surface Modeling  Surface Continuity (G0, G1, G2, G3) NX Mesh Surfaces  NX Extrude Sheet Body NX Ruled Surface NX Through Curves NX Through Curve Mesh NX N-Sided Surface NX Sweep Features  NX Section Surface NX Swept  NX Swept – Angular Law Orientation NX Sweep Along Guide NX Drafting  Setting Up Drawing Templates NX Drafting Preferences NX Hole Table NX Partially Shaded Drafting Views NX Render Sets Create a Custom Symbol in NX NX Drafting Symbol Control Characters NX Drafting – Visibility of Objects NX View Break NX Algorithmic Modeling NX Implicit Modeling JT File Format and Viewers NX Sheet Metal CAD – AutoCAD  AutoCAD Sample Files Design Problems  M40 Glow Plug Engine  Crankcase Group  Crankcase Connecting Rod Crankshaft Wrist Pin Piston Cylinder Liner Head Gasket Cylinder Head Glow Plug Cover Plate Cover Plate Gasket Fuel System  Carburetor Assembly  Carb Body Assembly  Carb Body Jet Molding Throttle Arm Carb Rotor Carb Hardware Fuel Line Needle Valve Assembly  Valve Body Assembly  Valve Body Overmolding Valve Body Detent Spring Needle Needle Valve Bracket Needle Valve Hardware Fuel Tank Assembly  Fuel Tank Exhaust System  Silencer Body Silencer Baffle Silencer Tail Power Connection Group  Prop Nut Drive Hub Thrust Washer Parametric Fuel Tank Mold Design – Rotational Molding Carnivore 212  Carnivore 212 Parts List Bike Repair Stand Bike Light Housing 30 Note Music Box Phone Holder Guitar Pedalboard Sandbox Digger Machine Elements & Features  The Classical Simple Machines  Inclined Plane Lever  Class 1 Lever Class 2 Lever Class 3 Lever Wheel and Axle Screw Pulley Wedge Design Features  Holes Screw Threads  Screw Thread Manufacturing  Thread Whirling Tap Drill Size Calculator – Unified (UN) – Actual Tap Drill Size Calculator – Unified (UN) – Conventional Screw Thread Terminology  Allowance Basic Form Profile Chamfer Crest Flank Flank Angle Form Height Helix Lead Lead and Helix Angles Major Diameter Minor Diameter Pitch Pitch Diameter Root Starts Thread Angle Screw Thread Designation  Unified Inch Screw Threads – Designation  Unified Screw Threads Introduction Nominal Size (Basic Major Diameter) Threads Per Inch Thread Form Symbol Thread Pitch Series Symbol  Graded Pitch Series Constant Pitch Series Special Pitch Series Thread Class External or Internal Thread Designation Left-Hand Threads Knurls Fillets and Rounds Splines Draft Angle Chamfers Tapers Cogs, Gears, and Sprockets  Harmonic Drive Gear Manufacturing  Gear Shaping Powder Metal Gear Manufacturing Gear Hobbing Machining Gears Gear Skiving Gear Casting Injection Molding of Gears AGMA – American Gear Manufacturers Association Gear Types Gear Design & Specification  Involute Curve Linkages  Over Center Linkages Fasteners  Threaded Fasteners  See Also: Screw Threads Tool Fittings and Recesses Engineering Materials  Mechanical Properties of Materials Metals and Alloys  Ferrous Metals  Steel  Stainless Steels  Austenitic Stainless Steels Ferritic Stainless Steels Martensitic Stainless Steels Duplex Stainless Steels Precipitation Hardening Stainless Steels Tool Steels  A Series Cold Work Tool Steels H Series Hot Work Tool Steels W Series Carbon Tool Steels T & M Series High Speed Tool Steels Other Steel Classifications Electrical Steel Maraging Steel Cast Iron  Gray Iron White Iron Malleable Iron Ductile (Nodular) Iron Wrought Iron Ferrous Metallurgy  Iron Carbon Phase Diagram Heat Treatment of Steel  Scale Formation & Prevention Differential Surface Chemistry Processes  Pack Carburizing Selective Surface Heating Processes Steelmaking  Electric Arc Furnace (EAF) See: AIST Steel Wheel Reference Nonferrous Metals  Aluminum  The Aluminum Association Wrought Aluminum Alloy Designation System  1000 Series Aluminum (Pure) 2000 Series Aluminum (Copper) 3000 Series Aluminum (Manganese) 4000 Series Aluminum (Silicon) 5000 Series Aluminum (Magnesium) 6000 Series Aluminum (Magnesium + Silicon) 7000 Series Aluminum (Zinc) Aluminum Standards Copper  Copper Alloys  Free Machining Brass ToughMet Copper-Nickel-Tin Alloys Copper Development Association Magnesium  International Magnesium Association Nickel  Nickel Institute Titanium  International Titanium Association Zinc Atomic Structure of Metals ASM International Industrial Gasses  Acetylene Argon Polymers  Elastomers  Silicone Rubber Ceramics, Glass, and Carbon  Polycrystalline Diamond The American Ceramics Society Wood Products  Lumber – Mechanical Defects Unbleached Kraft Linerboard Engineering Fluids and Lubricants  Petroleum Products  SAE Motor Oil Viscosity Ratings Gasoline (Petrol)  Octane Ratings See Also: Coatings ASTM International Material Geometry and Configurations Manufacturing Processes & Technology  Separating Processes  Machining Processes (Mechanical Separating)  Machine Tools Milling Machines and Operations  Milling Operations, Tools, and Strategies  Climb Milling And Conventional Milling Right and Left Handed End Mills Boring Head – Mill Face Milling Contour Milling DFM – Reducing Costs of Machined Fillets Grinding and Abrasive Machining  Water Jet Cutting Surface Grinding Handheld Grinding Tool and Cutter Grinding Creep Feed Grinding Media Blasting  Shot Blasting and Peening Vapor Blasting Lathes and Turning Operations  Lathe Components and Configurations  Swing Distance Between Centers Spindle Bore Diameter Lathe Operations  Straight Turning Facing Taper Turning Boring Contour Turning Form Turning Parting, Parting Off Drilling on a Lathe  Center Drilling Internal Threading External Threading Grooving or Necking Knurling Drilling and Holemaking  Drill Tip Depth Calculator Drill Press DFM – Hole Design Strategies Machining Parameters  Machining Plastics Machining Titanium Sawing  Band Sawing  Convoluted Foam Cutting (Egg Crate) Shapers and Planers Thermal Separating  Laser Beam Cutting Oxyfuel Gas Cutting Plasma Cutting Air Carbon Arc Gouging Electrical Discharge Machining (EDM)  Wire EDM Sinker (or Ram) EDM Chemical Separating Processes  Photochemical Machining Casting Processes  Casting Terminology  Core (Casting) Sand Casting  Match Plate Pattern Flaskless Casting Sand Casting Procedure Polymer Casting Die Casting  Die Casting Terminology Hot and Cold Chamber Die Casting Machines Continuous Casting  Continuous Upward Casting Centrifugal Casting Rubber Mold Casting Rubber Plaster Mold Casting Forming Processes  Sheet, Wire, and Tube Forming Processes  Section Bending Wire Winding Sheet Metal Processes  Shearing  Right Angle Shearing Slitting (Sheet Metal Process) Punching  Blanking (Sheet Metal Process) Turret Punch Press Bending (Sheet Metal Process)  Sheet Metal Brakes  Automated Bending Centers Press Brakes Incremental Sheet Forming Embossing Spinning Stamping Bulk Forming Processes Power Presses Polymer Processes  Rotational Molding Hot Wire Foam Cutting See Also: Polymer Casting See Also: Machining Plastics Injection Molding  Overmolding Injection Molding Defects  Warpage (Molding Defect) Sink Marks Flash Short Shots Weld Lines Splay Marks Jetting Burn Marks Voids and Air Traps Overpacking Delamination Injection Mold Design and Manufacturing Example Extrusion (Plastics) Composites Manufacturing Processes  Adaptive Mold Technology Compression Molding Blow Molding Surface and Edge Modification  Functional and Decorative Texturing  Half-Moon Flaking Laser Texturing Surface Texture: Roughness, Waviness and Lay  Surface Texture: Lay  Crossed Lay Coatings  Organic Coatings  Primers Drying Oils Varnish  Spirit Varnish (Shellac) Lacquer Enamels Latex Paints Bituminous Coatings Synthetic Coating Resins Coating Methods  Spray Coating Powder Coating Electrocoating (E-Coating) Inorganic Coatings  Conversion Coatings  Aluminum Anodizing Chromate Conversion Coatings  Alodine Iridite Zinc Chromate Coatings Zinc Coatings  Zinc Plating Dyes Cleaning  Ultrasonic Cleaning Solvent Cleaning  Vapor Degreasing Aqueous Cleaning Descaling Processes See Also: Media Blasting Thermal Joining  Welding  Arc Welding  Shielded Metal Arc Welding (SMAW) Flux-Core Arc Welding (FCAW) Gas Metal Arc Welding (GMAW) Submerged Arc Welding (SAW) Arc Stud Welding (SW) Unique Welding Processes  Flash Welding Soldering Glass Processes  Glass Blow Molding Computer Numerical Control (CNC)  History of CNC Technology  Tracer Lathe & Mills Additive Manufacturing  Binder Jetting Processes Directed Energy Deposition Workholding  Layout and Setup Tooling  Layout Dye Sine Bar Bench Block V-Blocks 1-2-3 Blocks Expanding Mandrels Surface Gauge Adjustable Parallels Metrology  Measuring Devices  Reference Standards  Gauge Blocks Surface Plates  Other Granite Master Tools Pin Gauge Hole and Cylinder Measure  Three-Point Micrometer Bore Gauge Inside Hole Calipers Telescoping Bore Gauge Inside Micrometer Small Bore Gauge Coaxial Indicator Graduated Instruments  How to Read a Tape Measure (Inches)  Fractions and Decimals on an Inch Tape Measure Vernier Caliper – Metric Inch Machinist’s Rule – 10 & 100 Comparison Gauges  Feeler Gauge Go-No Go Gauge  Snap Gauge Ring Gauge Flush-Pin Gauge Center Gauge Surface Finish Comparator Optical Comparator (Profile Projector) Radius Gauge Thread Pitch Gauge Optical Flat Calibration and Traceability  NIST – The National Institute of Standards and Technology The Moore M48 Coordinate Measuring Machine Featured ET Alumni Occupational Safety  Safety Data Sheets (SDS) Safety Guidelines  Safety Guidelines – Soldering (Iron Soldering) Machine Shop Safety – Eye Hazards Machine Shop Safety – Entanglement Hazards Machine Shop Safety – Impact Hazards Machine Shop Safety – Crushing Hazards Student Project Examples  Torque-Limiting Tapping Head  Torque-Limiting Floating Tapping Head Video 4th Axis Table Quick Mount Process Validation of an IACV Screw  Eric Ng Additional Project Files Hay Hook  Collin Hill Additional Project Files Mrs. Quackers: An IOT Integrated Duck Sophomore Project – Bike Light Yaskawa HC10 Machine Tending using RFID Machine Tending Lathe Project Yaskawa HC10 Machine Tending with Locus Vector AMR Calculators  Drilling Calculators Threading Calculators About  Privacy Policy Contact Us What is Engineering Technology? Index Terms of Use SME S140 – The University of Memphis

The thread angle, also known as the thread profile angle, is the angle between the flanks of a screw thread. It is an essential aspect of the thread’s geometric profile and influences how threads mesh and interact with each other.