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Precision Machining Technology (PMT)

Precision Machining Technology Philosophy

The philosophy of the Connecticut Technical Education and Career System’s Precision Machining Technology (PMT) program is to provide our students with theoretical knowledge, analytical problem solving, and application skills necessary for entry-level employment in the ever-changing manufacturing environment and preparation for post-secondary education. This philosophy is put into effect using a standard-based curriculum and comprehensive work-based learning that provides options and alternatives for learning; and is designed to accommodate varying types of gifts, talents, strengths, needs, and interests. 

Precision Machining Technology - Course Map

* See District Summative Assessment (DSA) exam outline for specific breakdown by substandard and learning objectives.

Grade 9 - Semester 1 & 2 DSA

  • 9.1 Shop Safety 
  • 9.2 Introduction to Machining Technology 
  • 9.3 Hand Tools 
  • 9.4 Blueprint Reading 
  • 9.5 Measurements 
  • 9.6 Layout 
  • 9.7 Lathes 
  • 9.8 Milling Machines 
  • 9.9 Drill Press Types and Operation 
  • 9.10 Computer Numerical Control (CNC) and Conversational Programming 

Grade 10 - Semester 1 DSA

  • 10.1 Shop Safety (OSHA 10) 
  • 10.2 Layout & Blueprint Reading 
  • 10.3 Measurement and Quality 
  • 10.4 Material Composition and Heat Treatment 
  • 10.5 Maintenance, Lubrication and Cutting Fluids 
  • 10.6 Milling Machines 

Grade 10 - Semester 2 DSA

  • 10.7 Saws and Cut-off Machines 
  • 10.8 Lathes 
  • 10.9 Grinding Machines, Procedures and Techniques 
  • 10.10 CamInstructor® & CIMCO Edit® 
  • 10.11 Employability Skills and Work Ethic 

Grade 11 - Semester 1 DSA

  • 11.1 Shop/Workplace Safety 
  • 11.2 Grinding Machines 
  • 11.3 CNC Programming and Operations 
  • 11.4 Milling Machine Operations 
  • 11.5 Blueprint Reading and GD&T 

Grade 11 - Semester 2 DSA

  • 11.6 Inspection Setups and Coordinate Measuring Machines (CMM) 
  • 11.7 Continuous Improvement and Lean Manufacturing Principles 
  • 11.8 Lathe Operations 
  • 11.9 MasterCam® 

Grade 12 - Semester 1 DSA

  • 12.1 Shop/Workplace Safety 
  • 12.2 Continuous Improvement and Lean Manufacturing Principles 
  • 12.3 Milling Machines (4 and 5 Axis Machining) 

Grade 12 - Semester 2 DSA

  • 12.4 Additive Manufacturing 
  • 12.5 Destructive and Non-Destructive Quality Testing 
  • 12.6 Specialty Machines 

9th Grade Curriculum

  • Big Idea(s):

    • Safety is the number one priority of the shop. 
    • Safety is everyone’s responsibility. 

    Essential Question(s):

    • What types of PPE have you used in your daily lives? Why? 
    • What could be a result of someone not following all safety rules? 

    Learning Outcomes

    Students will know: As evidenced by: (oral, written, or performance)
    9.1.1 Safe Work Habits 

    • Identify Personal Protective Equipment 

      Demonstrate appropriate PPE use 

      Explain proper shop dress code 

      Follow shop safety rules 

      Maintain a clean work area/shop 

      Locate Emergency shut-offs in shop 

      Score 100% on safety test each phase 
    9.1.2 Fire Safety 

    • Explain the fire triangle 

      Identify classes of fires 

      Locate fire extinguishers and blankets in shop 

      Identify types of extinguishers 

      Explain the process of extinguishing certain fires 

      Score 100% on written safety test 
    9.1.3 First Aid 

    • Describe procedures for dealing with various injuries. 

      Explain the dangers bloodborne pathogens 

      Score 100% on written safety test 
    9.1.4 PMT Specific Hazards 

    Identify and describe specific shop/ machine hazards: 

    Clearing of chips using proper tools 

    Lathe safety 

    Mill safety 

    Bandsaw safety 

    Large stock/material handling 

    Proper hand tool care and usage 

    Score 100% on safety test 

     

    Technical Vocab: 

    • 9.1.1 PPE, Emergency Shut-off, Shield/Guards, Eye Wash Station, Lock-out/Tag-out 
    • 9.1.2 Fire triangle 

    Resources:

     


     

  • Big Idea(s):

    • Every item in our daily lives was designed and built by machines and manufacturing. 

      There are a variety of career paths offered to young machinists after graduating from Precision Machining Technology. 

    Essential Question(s):

    • What type of job do you see yourself doing after graduation? 

    Learning Outcomes

    Students will know: As evidenced by: (oral, written, or performance)
    9.2.1 Evolution of Machine Tools 
    • Summarize the evolution of machine tools 

    9.2.2 Occupations and Careers 
    • Describe typical career paths leading to advancement for these occupations and careers: 
      • Semi-Skilled 
        • Machine Operator 
        • Assembler 
        • Shipping 
      • Skilled 
        • Machinist 
        • Toolmaker 
        • CNC Programmer & setup 
        • Inspector 
        • Mold Maker 
        • Machine Repair 
      • Technicians 
        • Inspection/QC 
        • Engineering 
      • Professional 
        • Engineer 
        • Supervisor 
        • Tech Ed/trade teacher 
        • Business Owner 
    9.2.3 Technical Skills and Concepts 
    • Perform trade math calculations 
    • Demonstrate measurement tool usage 
    • Perform basic part layout 
    • Describe basic blueprint reading terminology 
    • Demonstrate proper operation of manual machines 

     

    Technical Vocabulary: 

    • 9.2.1 Machine Tool, Computer Numerical Control, Lathe, Milling Machine 
    • 9.2.2 Machinist, Tool Maker, Die Maker, Inspector, Programmer, Engineer, Apprenticeship, Journeyperson, OJT/WBL, Associates Degree, Baccalaureate Degree 

    Resources:

    • Precision Machining Technology, second edition text: 
      • Section 1 Unit 1 Introduction to Machining 
      • Section 1 Unit 2 Careers in Machining 
    • Cengage Mindtap Lessons; Hoffman, Precision Machining Technology, 2nd Edition: 
      • Section 1 Unit 1: Introduction to Machining 
      • Section 1 Unit 2: Careers in Machining 
    • Connecticut Manufacturing Video
    • CPTV Making the Future
    • CT Creates Virtual Fair

     

  • Big Idea(s):

    • Using the right tool to complete a job safely, quickly, and efficiently. 
    • Hand tools can be just as dangerous as the machines in the shop. 

    Essential Question(s):

    • What do you feel is the importance of hand tools in today’s manufacturing world? 
    • Why do people take everyday hand tools for granted, and forget to follow simple precautions for safety? 
    • What are possible repercussions of using the wrong tool for a job and using a tool incorrectly? 

    Learning Outcomes

    Students will know: As evidenced by: (oral, written, or performance)

    9.3.1 Hand/Bench tools  
    • Identify and describe each common hand/bench tool: 
      • Wrenches  
      • Hacksaws  
      • Files  
      • Hand Reamers  
      • Hand taps/dies (threading)  
      • Hand Drill  
      • Hammers  
      • C-clamp & Parallel clamp  
      • V-Block  
      • Vises  
      • Pliers  
        • Needle nose 
        • Slip joint 
        • Side cutting 
      • Screwdrivers  
        • Flat head (Straight/Slotted) 
        • Phillips 
        • Torx 
      • Needle nose pliers 
      • Wrenches 
        • Open end  
        • Box end 
        • Adjustable wrench 
        • Spanner 

    9.3.2 Hand Tool Care and Safety   
    • Demonstrate the safe use & care of all appropriate tools 
    • Select appropriate hand/bench tool for a specific application  

     

    Technical Vocab:

    • 9.3.1 Adjustable Wrench, Dead Blow Hammer/Mallet, File, File Card, Hex Key/Allen Wrench, Pliers, Hack Saw, Vise, Taps, Dies, Draw filing, Loading, Needle nose pliers, Open end wrench, Pinning, Side cutting pliers, Spanner wrench, Straight filing, Deburring, Box end wrench 

    Resources:

  • Big Idea(s):

    • Blueprints are like roadmaps (driving directions) to a final product. 

    Essential Question(s):

    • What are some advantages and disadvantages of viewing images or models of parts and assemblies on a computer screen, tablets, and other media devices versus having paper prints? 
    • What are some of the consequences that a company might incur if it does not choose to create prints in a standard fashion? 

    Learning Outcomes

    Students will know: As evidenced by: (oral, written, or performance)

    9.4.1 Orthographic Projection 
    • Describe the relationship between the views of a print: 
      • Front view 
      • Top view 
      • Right side view 
      • Rear view 
      • Bottom view 
      • Left side view 
      • Isometric view 

    9.4.2 Alphabet of lines 
    • Identify the “alphabet of lines” and explaining the characteristics/uses of each type of line: 
      • Object/Visible 
      • Hidden  
      • Center  
      • Border  
      • Dimension 
      • Leader  
      • Extension 
      • Break  
      • Cutting-plane 
      • Phantom 
      • Section 
      • Symmetry 
      • Viewing-plane (Cutting-plane) 

    9.4.3 Title Blocks and Notes 
    • Identify and name the parts of a blueprint: 
      • Drawing number 
      • Part number 
      • Revision history block 
      • Sheet size 
      • Title block 
      • Tolerance block 
      • Zones 
      • General notes 
    9.4.4 Dimensions and Tolerance  
    • Identify the types of dimensions on a blueprint: 
      • Unilateral tolerance 
      • Bilateral tolerance 
      • Upper limit 
      • Lower limit 
      • Limit tolerance 
    • Calculate the tolerance for a given dimension 

     

    Technical Vocab:

    • 9.4.1 Blueprint, Orthographic Projection, Isometric View 
    • 9.4.2 Object Line, Hidden Line, Center Line, Border, Dimension Line, Leader Line, Extension Line, Break Line, Dimension Line, Cutting-plane Line, Phantom Line, Section Line, Symmetry Line, Viewing-plane (Cutting-plane) Line 
    • 9.4.3 Drawing number, Part number, Revision, Revision history block, Sheet size, Title block, Tolerance block, Zones, General notes 
    • 9.4.4 Dimension, Tolerance, Basic size, Unilateral tolerance, Bilateral tolerance, Upper limit, Lower limit, Limit tolerance 

    Resources:

    • Precision Machining Technology, second edition text: 
      • Section 3 Unit 1 Understanding Drawings 
    • Tooling University: 
    • Machine Trades Print Reading 6th edition: 
      • Unit 2 Visualizing Shapes 
      • Unit 3 Line Types 
      • Unit 4 Title Blocks and Notes 
      • Unit 7 Dimensions and Tolerance 
    • Starrett Decimal Equivalent Chart

  • Big Idea(s):

    • Without accurate measurement, modern industry could not exist. 
    • Precision measurement is a science known as metrology. 

    Essential Question(s):

    • How is measurement incorporated into our everyday lives? 

    Learning Outcomes

    Students will know: As evidenced by: (oral, written, or performance)

    9.5.1 Machine Technology Math 

    • Demonstrate and understanding of fractional and decimal math 

      Demonstrate an understanding of conversions between decimals and fractions 

      Reduce fractions to their lowest terms 

      Use machinist lingo to properly pronounce 3-place decimal figures in thousandths of an inch terms 

    9.5.2 Semi-Precision Instruments 

    • Read a steel rule down to 1/64” graduation 

      Measure an angle with a protractor 

      Measure a radius with a radius gage 
    9.5.3 Precision Instruments 

    • Read a micrometer to 3 decimal places 

      Measure an outer diameter with a micrometer 

      Read a dial caliper 

      Measure a length and shoulder with a dial caliper 

      Measure a height using a height gage 

      Measure perpendicularity with a solid square 

     

    Technical Vocab:

    • 9.5.1 Numerator, Denominator 
    • 9.5.2 Steel Rule, Graduations, Protractor, Fixed Gages, Semi-Precision Instrument 
    • 9.5.3 Micrometer, Dial Caliper, Precision Instrument, Solid square 

    Resources:

  • Big Idea(s):

    • Layout is the process of marking a piece of material to provide a visual guide while cutting or machining. 

    Essential Question(s):

    • How can layout prevent costly errors and improve accuracy?

    Learning Outcomes

    Students will know: As evidenced by: (oral, written, or performance)

    9.6.1 Layout Tools 

    • Demonstrate the use of: 

      Decimal chart conversions 

      Angle plate 

      Center head 

      Center punch  

      Divider 

      Height gage 

      Hermaphrodite caliper 

      Layout dye (Dykem®) 

      Prick punch 

      Steel rule  

      Scriber  

      Steel square (Solid square) 

      Combination square  

      Surface plate  

      Surface gage  

      Protractor 

      Trammel 

      V-block 

     

    Technical Vocab:

    • 9.6.1 Angle plate, Center head, Center punch, Divider, Height gage, Hermaphrodite caliper, Prick punch, Steel rule, Scriber, Steel square (Solid square), Combination square, Surface plate, Surface gage, Protractor, Trammel, V-block 

    Resources:

  • Big Idea(s):

    • Most parts that are round, at some point in time, were impacted by a lathe. 
    • Lathes can be dangerous machines; They are only as safe as the operator using them. 

    Essential Question(s):

    • How have lathes affected the machining industry? 
    • What are some safety guidelines that you need to be aware of in order to operate a lathe? 

    Learning Outcomes

    Students will know: As evidenced by: (oral, written, or performance)

    9.7.1 Lathe Safety 
    • Identify all safety devices and explain their function(s)  
      • Emergency stop 
      • Chip shields 
      • Spindle brake 
      • Chuck key removal 
      • Safety glasses 
      • Safety shoes 
      • Jewelry (as it relates to moving parts) 
      • Long hair (as it relates to moving parts) 
      • Loose clothes (as it relates to moving  parts) 
      • Medication 
      • Chips 
    • Explain how personal items can become safety hazards  
    • Identify and analyze the moving parts of a lathe that can cause injury  
    • Determine and use all required personal safety equipment when operating a lathe 

    9.7.3 Lathe Operations 
    • Perform these lathe operations: 
      • Facing 
      • Turning 
      • Shouldering 
      • Chamfers 
      • Knurling 
      • Filing/polishing 
      • Grooving/cutoff 
      • Drilling 

     

    Technical Vocab:

    • 9.7.1 Emergency stop, Entanglement, Impairment 
    • 9.7.2 Facing, Turning, Shouldering, Knurling, Grooving, Chamfer 

    Resources:

  • Big Idea(s):

    • Milling machines can create almost any shape imagined. 

    Essential Question(s):

    • What are some items you can think of that were made by a milling machine? 
    • How many different operations can be performed by a milling machine? 

    Learning Outcomes

    Students will know: As evidenced by: (oral, written, or performance)

    9.8.1 Milling Machine Safety 
    • Identify all safety devices and explaining their function(s) 
      • Emergency stop 
      • Chip shields 
      • Safety glasses 
      • Safety shoes 
      • Jewelry (as it relates to moving parts) 
      • Long hair (as it relates to moving parts) 
      • Loose clothes (as it relates to moving  parts) 
      • Medication 
      • Chips 
    • Explain how these personal items can become safety hazards  
    • Identify and analyze the moving parts of a milling machine that can cause injury  

    9.8.2 Milling machine operations  
    • Perform the milling operations: 
      • Mill block to size 
      • Drill holes 
      • Tapping holes 

     

    Technical Vocab:

    • 9.8.2 Vertical Milling Machine, Bridgeport, Endmill 

    Resources:

    • Precision Machining Technology, second edition text: 
      • Section 6 Unit 2 Tools, Toolholding, and Workholding for the Vertical Milling Machine 

  • Big Idea(s):

    • Drill presses are machines used to perform hole making operations. 
    • Drill presses come in a variety of sizes. 

    Essential Question(s):

    • Why would you use a drill press over a milling machine? 

    Learning Outcomes

    Students will know: As evidenced by: (oral, written, or performance)

    9.9.1 Drill Press Safety 
    • Identify all safety devices and explaining their function(s) 
      • Chip shields 
      • Safety glasses 
      • Safety shoes 
      • Jewelry (as it relates to moving parts) 
      • Long hair (as it relates to moving parts) 
      • Loose clothes (as it relates to moving  parts) 
      • Medication 
      • Chips 
    • Explain how chuck keys can be a hazard 
    • Explain the importance of moving parts the could cause injury 
    • Explain the importance of securing working hold devices 

    9.9.2 Drill Presses 
    • Identify the following types of drill presses: 
      • Micro drill press 
      • gang style drill press 
      • Radial-arm drill press 
      • Upright drill press 

    9.9.3 Tools, Toolholding, and Workholding  
    • Identify the parts of a twist drill 
    • List the 4 drill size classifications: 
      • Letter  
      • Number  
      • Fractional  
      • Metric 
    • Explain how to sharpen a twist drill 
    • Explain how to properly ream holes 
      • Speeds 
      • Feeds 
      • How much material to leave for reaming based on hole size 
    • Explain the difference between a center drill and a spot drill 
    • Explain how to use a Morse taper with drift key 
    • Explain the difference between a counterbore and a countersink 
    • Identify a countersink tool 
    • Identify a counterbore tool 
    • Explain the difference between a Jacobs-type drill chuck and a keyless drill chuck 
    • Identify and demonstrate the proper and safe usage of: 
      • Angle plate 
      • Drill chuck 
      • V-Block 
      • Vise 
    • Setup hold-down clamps 
    9.9.4 Drill Press Operations 
    • Calculate drill press speeds  
      • CS 
      • RPM 
    • Explain how to change the speed on a drill press 
    • Calculate drill press feeds 
      • IPR  
      • FPR 
    • Explain how to locate holes 
      • Center finder 
      • Edge finder 
    • Explain how to set the depth for a blind hole 
    • Setup a drill press for tapping 

     

    Technical Vocab:

    • 9.9.2 Gang drill press, Micro drill press, Radial-arm drill press, Upright drill press, Feed, Spindle 
    • 9.9.3 Angle plate, Dead center, Drill body, Drill chuck, Drill drift, Drill point, Flutes, Helix angle, Lips, Margin, Morse taper, Pilot, Pin vise, Shank, T-nut, V-block, Web, Twist drill, Center drill, Spot drill, Countersink, Counterbore 
    • 9.9.4 Blind hole, Edge finder (Center finder), Cutting speed, FPR, IPR, Pilot hole, RPM, Pecking, Spotting, SFPM, Tapping head, Through hole 

    Resources:

  • Big Idea(s):

    • CNC programs are a list of actions that you need a machine to complete. 
    • A CNC machine replaces a human operator with computers and servo motors. 

    Essential Question(s):

    • What is the difference between  conversational programming and G & M code programming?  

    Learning Outcomes

    Students will know: As evidenced by: (oral, written, or performance)

    9.10.1 Conversational Programming 
    • Demonstrate how to create the following events on the milling machine MCU: 
      • Position 
      • Mill 
      • Drill 
      • Arc 
    • Demonstrate how to create the following events on the lathe MCU (If available): 
      • Position 
      • Turn 
      • Drill 
      • Arc 

    9.10.2 Types of CNC Machines 
    • Identify types of CNC machines: 
      • CNC Milling machine 
      • Vertical machining center (VMC) 
      • Horizontal machining center (HMC) 
      • CNC Lathe 
      • CNC Turning Center 
      • Swiss-Type 

    9.10.3 Purpose of CNC Machining 
    • Compare and contrast the advantages and disadvantages of CNC machining over conventional machining 

     

    Technical Vocab:

    • 9.10.1 Conversational Programming, MCU 
    • 9.10.2 CNC, Machining center, Turning center 

    Resources:

    • Precision Machining Technology, second edition text: 
      • Section 8 Unit 1 CNC Basics